Stripline Patents (Class 333/128)
  • Patent number: 10381706
    Abstract: A Wilkinson combiner includes: a plurality of splitting units that splits signals inputted from two ports; an isolating unit that connects one ends of the signals split at the plurality of splitting units to each other; and a combiner that connects other ends of the signals split at the plurality of splitting units to each other and outputs a combined signal. The isolating unit balun-connects the connected signals to each other using a balun circuit, short-circuits the balun-connected one end, and terminates the balun-connected other end using a terminator.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: August 13, 2019
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yusaburo Goto, Keiichi Sakamaki
  • Patent number: 10243324
    Abstract: An apparatus providing a phase-matched interface between a driver device and a multibeam optoelectronic device, such as a VCSEL array device, is disclosed as well as various methods for utilization and manufacturing of the same. The interface device includes an input adapted to interface with the driver device, an output to interface with the multibeam optoelectronic device, and a power splitter to electrically connect the output to the input. The output includes a plurality of output contacts that each interface with one optoelectronic device among the plurality of optoelectronic devices of the multibeam optoelectronic device via one transmission line among a plurality of transmission lines having a common electrical length. In embodiments, the power splitter is a resistor-based power splitter that adjusts an overall impedance of the power splitter at each “tee” junction or intersection to provide an impedance-matched interface.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: March 26, 2019
    Assignee: TRILUMINA CORP.
    Inventors: Robert W. Brocato, Marcelino Armendariz
  • Patent number: 10193225
    Abstract: An example method for a beamforming network for feeding short wall slotted waveguide arrays. The beamforming network may include six beamforming network outputs, where each beamforming network output is coupled to one of a set of waveguide inputs. Further, the beamforming network may include a cascaded set of dividers configured to split electromagnetic energy from a beamforming network input to the six phase-adjustment sections. The cascade may include a first level of the cascade configured to split the electromagnetic energy from the beamforming network input into two first-level beamforming waveguides, a second level configured to split the electromagnetic energy from each of two first-level beamforming waveguides into two respective second-level beamforming waveguides, and a third level of the cascade configured to split the electromagnetic energy from one of two respective second-level beamforming waveguides into two respective third-level beamforming waveguides.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: January 29, 2019
    Assignee: Waymo LLC
    Inventors: Jamal Izadian, Russell Leigh Smith
  • Patent number: 10121583
    Abstract: An electromagnetic component including a multi-layer, spiral coil structure embedded in a molded body is disclosed. Each layer of the coil structure makes approximately one and a quarter turns of a winding. Each layer of the coil structure has a loose middle segment, two slim end segments overlapping each other with a spacing therebetween, and tapered neck segments respectively connecting the loose middle segment with the two slim end segments.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: November 6, 2018
    Assignee: CYNTEC CO., LTD
    Inventors: Wei-Chien Chang, Chia-Chi Wu, Lang-Yi Chiang, Tsung-Chan Wu, Jih-Hsu Yeh
  • Patent number: 10043756
    Abstract: The present invention is directed to integrated circuits and methods thereof. More specifically, embodiments of the present invention provide a local correction for bending communication line pairs. In an IC package, a pair of communication lines is used to provide a physical link for data communication between two or more components. At regions where the pair of communication lines is bent, the inner bend line is extended in length and shaped to match the length of the outer bend line while preserving integrity of its signal propagation characteristics, thereby providing local phase correction. There are other embodiments as well.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: August 7, 2018
    Assignee: INPHI CORPORATION
    Inventor: Mohammed Ershad Ali
  • Patent number: 9929456
    Abstract: The present invention is directed to an RF termination device that includes a substrate having a first meandered transmission line disposed on a first surface thereof. The meandered first transmission line has a predetermined first transmission line length and a characteristic impedance substantially equal to twice the predetermined system impedance. One end of the first meandered transmission line is configured as an open circuit. A second meandered transmission line is disposed on the first major surface adjacent the first meandered transmission line. The meandered second transmission line has a predetermined second transmission line length and a characteristic impedance substantially equal to twice the predetermined system impedance. One end of the second meandered transmission line is coupled to the other end of the first transmission line and the other end is coupled to ground.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: March 27, 2018
    Assignee: ANAREN, INC.
    Inventor: Chong Mei
  • Patent number: 9923531
    Abstract: A power processing circuit includes a first portion, a second portion, a third portion, a resistor, a first coupling portion, a second coupling portion, a third coupling portion and a fourth coupling portion. The first portion, the second portion and the third portion are connected to respective external components. The first coupling portion and the third coupling portion are micro-strips symmetrical to the first portion. The second coupling portion and the fourth coupling portion are micro-strips symmetrically connected to two terminals of the resistor.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: March 20, 2018
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Yu-Chih Chueh
  • Patent number: 9907155
    Abstract: A printed wiring board includes a first main wire having first inner layer wiring patterns which are wired on inner layers connected by first via conductors in series. In addition, a second main wire has second inner layer wiring patterns which are wired on the inner layers connected by second via conductors. The first inner layer wiring patterns and the second inner layer wiring patterns are wired so as to change the layer to the inner layer on the opposite side to each other. First and second branch wires are branched from the first and second via conductors, respectively.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 27, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Numagi, Hikaru Nomura, Masanori Kikuchi, Hiroyuki Mizuno
  • Patent number: 9894549
    Abstract: An information processing apparatus (10) includes a comparison unit (11) for comparing a plurality of pieces of RF measured information (1046) indicating signal reception information measured for each of a plurality of radio terminals (31 to 34) with a plurality of pieces of RF prediction information (1045) predicted as reception information in one radio terminal for each of a plurality of local areas, and an aggregation unit (12) for aggregating the number of radio terminals which have measured the measured information which is within a predetermined range of the prediction information, among the plurality of pieces of measured information, for each of the plurality of local areas.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: February 13, 2018
    Assignee: NEC CORPORATION
    Inventor: Hiroshi Miyai
  • Patent number: 9869707
    Abstract: There are provided methods and devices for realizing a broadband directional bridge, and a network analyzer test set based on the directional bridge structure. In some embodiments the directional bridge comprises a resistive bridge and a balun. The balun further comprises a transmission line which is surrounded by ferrite material and is implemented on a main printed circuit board (PCB).
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 16, 2018
    Assignee: VAYYAR IMAGING LTD.
    Inventor: Doron Cohen
  • Patent number: 9612317
    Abstract: An example method for a beamforming network for feeding short wall slotted waveguide arrays. The beamforming network may include six beamforming network outputs, where each beamforming network output is coupled to one of a set of waveguide inputs. Further, the beamforming network may include a cascaded set of dividers configured to split electromagnetic energy from a beamforming network input to the six phase-adjustment sections. The cascade may include a first level of the cascade configured to split the electromagnetic energy from the beamforming network input into two first-level beamforming waveguides, a second level configured to split the electromagnetic energy from each of two first-level beamforming waveguides into two respective second-level beamforming waveguides, and a third level of the cascade configured to split the electromagnetic energy from one of two respective second-level beamforming waveguides into two respective third-level beamforming waveguides.
    Type: Grant
    Filed: August 17, 2014
    Date of Patent: April 4, 2017
    Assignee: Google Inc.
    Inventors: Jamal Izadian, Russell Smith
  • Patent number: 9596750
    Abstract: An electronic circuit includes: a semiconductor chip provided with a single-ended I/F including a pad on which single-ended signals are exchanged; and a mounting unit on which a differential transmission path transmitting a differential signal is formed, and on which the semiconductor chip is mounted so that the pad of the single-ended I/F is directly electrically connected to a conductor configuring the differential transmission path.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: March 14, 2017
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Tomoari Itagaki, Kenichi Kawasaki, Kentaro Yasunaka
  • Patent number: 9590301
    Abstract: In order to calibrate in amplitude and phase the individual transceiver elements (4) of an active antenna array for a mobile telecommunications network, each transceiver element including a transmit and a receive path (8, 10) coupled to an antenna element (12), each transceiver element includes a comparator (100) for comparing phase and amplitude of transmitted or received signals with reference signals in order to adjust the characteristics of the antenna beam. In order to provide an accurate means of reference signal distribution, a feed arrangement distributes the reference signals and includes a waveguide (50) of a predetermined length which is terminated at one end (52) in order to set up a standing wave system along its length, and a plurality of coupling points (56) at predetermined points along the length of the waveguide, which are each coupled to a comparator of a respective transceiver element.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 7, 2017
    Assignee: Alcatel Lucent
    Inventors: Florian Pivit, Jan Hesselbarth
  • Patent number: 9559429
    Abstract: The present disclosure relates to feeding networks for base station antenna. Embodiments of the disclosure may comprise first and second phase shifters, and a 3-way power divider, including an input terminal, a first output terminal for feeding a first unit, a second output terminal connecting to the first phase shifter, and a third output terminal connecting to the second phase shifter. The feeding network may also comprise a first 2-way power divider, including an input terminal connecting to the first phase shifter, a first output terminal for feeding a second unit, and a second output terminal for cascading a third phase shifter. In addition, the feeding network may comprise a second 2-way power divider, including an input terminal connecting to the second phase shifter, a first output terminal for feeding a third unit, and a second output terminal for cascading a fourth phase shifter.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: January 31, 2017
    Assignee: TONGYU COMMUNICATION INC.
    Inventor: Fengming Fang
  • Patent number: 9509032
    Abstract: A radio frequency transmission arrangement comprises a ground plate (8) having first and second opposite sides and a boss protruding from said second side of the ground plate (8), a first transmission line comprising a first elongate conductor (1) passing from the first side of the ground plate through an aperture (3) in the ground plate and the boss, and a second transmission line comprising a second elongate conductor (2) and a ground plane (6), the first elongate conductor (1) passing through the ground plane (6) to connect to the second elongate conductor. The boss has an end surface (4) disposed in a substantially parallel relationship with the ground plane (6) of the second transmission line, and there is a gap between the end surface of the boss and the ground plane.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: November 29, 2016
    Assignee: Cambium Networks Limited
    Inventors: Adam Wilkins, Carl Morrell, Paul Clark, Peter Spence, Nigel Jonathan Richard King
  • Patent number: 9373896
    Abstract: Systems, devices, and methods for determining and applying true time delay (TTD) values for compensating for free-space path length differences between a phased array and a reflector in wideband communication are disclosed. TTD values are determined for individual and groups of antenna elements in phased array fed reflector (PAFR) antennas based distances from a focal region of the reflector. The distance from the focal region of the reflector and the offset of the phased array from the reflectors focal plane can be used to determine path length differences. Corresponding TTD values for antenna elements are then determined based on the path length difference associated with the antenna elements. Each antenna element can be coupled to a TTD element to provide the corresponding TTD value to the signals received by and generated by the antenna elements of the phased array. The TTD elements include transverse electromagnetic (TEM) mode mechanisms.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 21, 2016
    Assignee: VIASAT, INC
    Inventor: Donald L Runyon
  • Patent number: 9319155
    Abstract: A multiple input multiple output (MIMO) antenna module, comprising a first signal feed port coupled to a first antenna element disposed along a first edge of a PCB, a second signal feed port coupled to a second antenna element disposed on the PCB and a transceiver operable to be selectively coupled to either or both of the first and second signal feed ports. The first and second antenna elements form a plurality of antenna elements confined to a peripheral section surrounding a central region of the PCB of the MIMO antenna module.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 19, 2016
    Assignee: BlackBerry Limited
    Inventors: Qinjiang Rao, James Paul Warden, Mina Ayatollahi
  • Patent number: 9264012
    Abstract: Disclosed is a signal splitter that includes a coupled transmission line element coupled between two output ports of the signal splitter. The coupled transmission line element is used to lower the isolation between the two output ports for a particular frequency band. The coupled transmission line element includes a first and a second elongate electrical conductor. The first and the second elongate electrical conductor first ends are coupled to the signal transmission path that connects the two output ports. The first and the second elongate electrical conductor second ends are un-terminated. The first elongate electrical conductor and the second elongate electrical conductor are not shorted together, and the first elongate electrical conductor and the second elongate electrical conductor are electrostatically coupled, such as by twisting them together into a helix.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: February 16, 2016
    Assignee: PPC BROADBAND, INC.
    Inventors: Erdogan Alkan, Leon Marketos
  • Patent number: 9263787
    Abstract: An N-way radio frequency (RF) divider/combiner is formed as a combination including an input port electrically coupled to a first 2-way divider/combiner and a second 2-way divider/combiner. An antenna may be coupled to at least one port of the N-way divider. The antenna may be formed as a compound printed loop (CPL) antenna. The N-way RF divider/combiner may be configured to provide N inputs and M output ports, wherein N and M are integers and any of the M output ports and N input ports can be connected to any combinations of devices. Such devices may include, e.g., an antenna including but not limited to a CPL antenna, RF receive port, transmit port, amplifier, RF switch, low noise amplifier (LNA), oscillator, tuning circuit, matching circuit, lumped element circuit, active circuit, diode, adjustable inductive circuit, and adjustable capacitive circuit.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 16, 2016
    Assignee: DOCKON AG
    Inventors: Alexandre Dupuy, Forrest Brown, Patrick Rada
  • Patent number: 9214899
    Abstract: It is presented a power amplifier assembly comprising; a radio frequency multi-order power amplifier comprising a circuit board; a grounding structure connected to the radio frequency multi-order power amplifier and comprising a recess; a combining network connected to a plurality of outputs of the radio frequency multi-order power amplifier. The combining network comprises: a plurality of input connection points, wherein each of the plurality of input connection points is connected to a respective output of the plurality of outputs of the radio frequency multi-order power amplifier; an output connection point; and a conductor arrangement comprising a plurality of conductive paths arranged between the plurality of input connection points and the output connection point; wherein at least one of the plurality of conductive paths is at least partly formed by a suspended conductor positioned in the recess of the grounding structure.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: December 15, 2015
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Joakim Plahn, Andrzej Sawicki, Martin Schoon
  • Patent number: 9142869
    Abstract: A differential terminal 21a is connected to a branch line 33a which is provided in the main line close to the differential terminal 21a in the range from the intersection portion 39a to a start terminal on the line. A differential terminal 21b is connected to a branch line 37a which is provided in the main line close to the differential terminal 21b in the range from the intersection portion 39a to an end terminal on the line. A differential terminal 22a is connected to a branch line 33b which is provided in the main line close to the differential terminal 22a in the range from the intersection portion 39b to the start terminal. A differential terminal 22b is connected to a branch line 37b which is provided in the main line close to the differential terminal 22b in the range from the intersection portion 39b to the end terminal.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: September 22, 2015
    Assignee: ANRITSU CORPORATION
    Inventor: Fumihito Hirabayashi
  • Patent number: 9030269
    Abstract: A tunable microstrip having removable contactless tuning stubs is used in the fabrication of a tunable T-junction circuit. Arrays of tuning stubs are formed in proximity to both sides of a microstrip signal trace. Each array of tuning stubs has a shared grounding bus connected by multiple vias to the ground plane. The sinusoidally patterned shape of the tuning stubs and their proximity to the signal trace provides a minimum breakdown voltage of 1.3 kV and a tuning sensitivity of approximately 0.01 dB to 0.02 dB.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: May 12, 2015
    Assignee: Scientific Components Corporation
    Inventor: Aaron Vaisman
  • Patent number: 9021173
    Abstract: A serial attached SCSI (SAS) system may include a host bus adaptor, a bus expander, and a multi-layer data transmission medium coupled between the host bus adaptor and the bus expander. The multi-layer data transmission medium may include a first microstrip structure located at a top surface portion of the multi-layer data transmission medium and a first stripline structure located within a first internal portion of the multi-layer data transmission medium. The microstrip structure provides, among other things, a repeaterless high-speed serial communications link between the host bus adaptor and the bus expander.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: April 28, 2015
    Assignee: International Business Machines Corporation
    Inventors: Michael Andrew Cracraft, Steven Louis Makow
  • Publication number: 20150029072
    Abstract: A power divider for transmitting signals of an input terminal to a plurality of output terminals includes a rectangular microstrip line coupled to the input terminal, and a plurality of coupling units conducting the rectangular microstrip line and the plurality of output terminals by electromagnetic coupling, wherein each of the plurality of coupling units and the rectangular microstrip line are separated by a first gap, and each coupling unit includes at least one dual-L resonator disposed between the microstrip line and an output terminal, wherein the first gap and a second gap of each dual-L resonator are related to a power ratio between the input terminal and the plurality of output terminals.
    Type: Application
    Filed: October 16, 2013
    Publication date: January 29, 2015
    Applicant: Wistron NeWeb Corporation
    Inventors: Guo-Shu Huang, I-Shan Chen
  • Patent number: 8937517
    Abstract: A splitter includes an input terminal, a first output terminal, a second output terminal, a first transmitting unit including a first microstrip coupled between the input terminal and a first node, a second microstrip coupled between the input terminal and a second node, and a first resistor coupled between the first node and the second node, and a second transmitting unit including a third microstrip coupled between the first node and the first output terminal, a fourth microstrip coupled between the second node and the second output terminal, and a second resistor coupled between the first output terminal and the second output terminal, wherein lengths of the first microstrip and the second microstrip are related to a first frequency, and lengths of the third microstrip and the fourth microstrip are related to a second frequency.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: January 20, 2015
    Assignee: Wistron NeWeb Corporation
    Inventors: Chen-Chia Huang, Chun-Feng Yang
  • Patent number: 8933765
    Abstract: A filter includes: an input terminal to which a fundamental wave signal and a harmonic signal group of the fundamental wave signal are supplied; an output terminal configured to output the fundamental wave signal supplied to the input terminal; a transmission line configured to connect the input terminal and the output terminal; an open-end stub configured to be provided corresponding to an odd harmonic signal among the harmonic signal group, coupled to the transmission line, and has a length corresponding to one quarter of a wavelength of the corresponding odd harmonic signal; a first short-end stub configured to be coupled to the transmission line and has a length corresponding to one quarter of a wavelength of the fundamental wave signal; and a second short-end stub configured to be coupled to the transmission line.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: January 13, 2015
    Assignee: Fujitsu Limited
    Inventor: Akihiko Akasegawa
  • Patent number: 8922296
    Abstract: An amplification device with reduced bulk including at least one plate parallel to a plane XY and at least two amplifier modules mounted on the plate, each amplifier module including an amplifier element, an input connection waveguide, and an output connection waveguide oriented in one and the same direction X corresponding to a direction of longitudinal propagation, the amplifier element having an input and output axis oriented in a direction Y perpendicular to the direction of propagation X, wherein the input connection waveguides of the amplifier modules are distinct, have different lengths and are mounted in parallel to one another, the output connection waveguides of the amplifier modules are distinct, have different lengths and are mounted in parallel to one another, and the sum of the lengths of the input and output guides of one and the same amplifier module is identical for each amplifier module.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: December 30, 2014
    Assignee: Thales
    Inventors: Jean-Philippe Fraysse, Michel Maignan
  • Patent number: 8907744
    Abstract: A Multi-Line Phase Shifter (MLPS) for a vertical beam tilt-controlled antenna is provided, in which a housing is shaped into an elongated rectangular box, a fixed plate is attached on an inner bottom surface of the housing and has transmission lines printed thereon, the transmission lines forming part of a plurality of phase shifting patterns and a plurality of signal division patterns, for dividing an input signal and shifting phases of divided signals, and a mobile plate is installed within the housing, movably along a length direction at a position where the mobile plate contacts a surface of the fixed plate, and has transmission lines printed thereon, the transmission lines forming a remaining part of the plurality of phase shifting patterns for phase shifting by forming variable lines through coupling with the part of the plurality of phase shifting patterns.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: December 9, 2014
    Assignee: KMW Inc.
    Inventors: Young-Chan Moon, Oh-Seog Choi, In-Ho Kim, Kwang-Seok Choi
  • Patent number: 8902019
    Abstract: An electronic circuit includes: a first resistor having a first terminal and a second terminal; a first transmission line that is coupled to the first terminal of the first resistor, has a first terminal to which a first input signal is input, and has a second terminal outputting a first output signal having a phase difference with respect to the first input signal; and a second transmission line that is coupled to the second terminal of the first resistor, has a first terminal to which a second input signal having a phase difference with respect to the first input signal is input, and has a second terminal outputting a second output signal having a phase difference with respect to the second input signal and having, the phase difference being smaller than a phase difference between the first input signal and the second input signal with respect to the first output signal.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: December 2, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Osamu Anegawa
  • Patent number: 8884717
    Abstract: The invention discloses a diplexer formed from the combination of a first filter and a second filter, wherein both the first filter and the second filter have at least one through-hole via inductor. The diplexer has an input terminal to receive an input signal. The first filter has a first terminal electrically connected to the input terminal and a second terminal to generate a first output signal; the second filter has a third terminal electrically connected to the input terminal and a fourth terminal to generate a second output signal. The diplexer has a first output terminal electrically connected to the second terminal of the first filter to output the first output signal and a second output terminal electrically connected to the fourth terminal of the second filter to output the second output signal.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: November 11, 2014
    Assignee: Cyntec Co., Ltd.
    Inventors: Yu-Lin Liao, Ian-Chun Cheng
  • Patent number: 8847681
    Abstract: A combiner for a Doherty amplifier includes, on and in a dielectric substrate, a carrier input terminal, a peak input terminal, an output terminal, a combining point for combining an output signal from the carrier amplifier and an output signal from the peak amplifier, a first ?/4 line connected between the carrier input terminal and the combining point, a second ?/4 line connected between the combining point and the output terminal, and a first directional coupler. The first directional coupler includes a third ?/4 line electromagnetically coupled to one, to be monitored, of the first ?/4 line and the second ?/4 line.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: September 30, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Masahiko Namerikawa, Shinsuke Yano, Yasufumi Horio, Tatsuya Tsuruoka, Takami Hirai, Hideaki Okubo, Atsuo Mizuma
  • Patent number: 8847702
    Abstract: Systems and methods which utilizes a stub array microstrip line for providing a phase shifter configuration are shown. A stub array microstrip line phase shifter of embodiments may comprises a microstrip line structure, an isolation structure, and a phase tuning structure cooperative to provide phase shifting of signals passed through the microstrip line structure. A microstrip line structure comprises a stub array microstrip line having a plurality of microstrip stubs provided in association with a slotted ground plane having a plurality of slots. The stub array microstrip line is adapted to provide compensation for capacitance and/or inductance associated with the slots of the slotted ground plane. A phase tuning structure provides coupling of signals transmitted by the stub array microstrip line to the slots of the slotted ground plane for signal phase shifting.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: September 30, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Hau Wah Lai, Angus C. K. Mak, Corbett R. Rowell
  • Patent number: 8823467
    Abstract: An arrangement (100, 400, 500, 600) comprising a first plate (110, 410, 510, 610) and a second plate (120, 420, 520, 620) at a first distance (di) from each other with an overlap between them. The arrangement also comprises a third (130, 430, 530, 630) and a fourth (140, 440, 540, 640) plate between the first and second plates in said overlap so that the third and fourth plates do not overlap each other. All plates are made of an electrically conducting material, are essentially flat and plane and are separated from each other by a dielectric material. The first plate comprises an input/output port (111, 411, 511, 611), the second plate comprises a ground port (112), and the third and fourth plates comprise an output/input port (131, 141, 431, 441, 531, 541, 551). The arrangement will serve as a power divider, a power combiner or as a balun.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: September 2, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Mingquan Bao
  • Patent number: 8742867
    Abstract: The present invention provides a capacitively coupled stripline to microstrip transition which comprises a stripline, a microstrip, an upper conductive ground plane, a lower conductive ground plane, an insulating layer and an insulating fixing component. The stripline is positioned between the upper conductive ground plane and the lower conductive ground plane, and has a stripline overlap section. The microstrip is mounted on the upper conductive ground plane, and has a microstrip overlap section which penetrates the upper conductive ground plane. Wherein the microstrip overlap section, the insulating layer and the stripline overlap section are attached uniformly and tightly in sequence and fixed together by the insulating fixing component. The present invention further provides an antenna comprising this transition.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: June 3, 2014
    Assignee: Andrew LLC
    Inventors: Jonathon C. Veihl, Jinchun He, Hangsheng Wen
  • Publication number: 20140118071
    Abstract: The present invention is directed to an impedance transformation device for use in a system having a characteristic system impedance, the device being characterized by a predetermined bandwidth having a center frequency. The device housing size is one-eighth wavelength of the center frequency. A first coupler is characterized by an even mode impedance and an odd mode impedance. The bandwidth is a function of the even mode impedance and the odd mode impedance substantially corresponds to the component port impedance. At least one second coupler is disposed in parallel with the first coupler and is characterized by the even mode impedance and the odd mode impedance.
    Type: Application
    Filed: March 1, 2013
    Publication date: May 1, 2014
    Applicant: ANAREN, INC.
    Inventors: Chong Mei, Ying Huang
  • Patent number: 8698576
    Abstract: An exemplary communication device includes a combiner having a first transmission line configured to be coupled with a first communication component. A second transmission line is configured to be coupled with a second communication component. A third transmission line is coupled with the first and second transmission lines. An isolation module is coupled with the first and second transmission lines. The isolation module has a resistance, a capacitance and an inductance configured to isolate the first communication component from the second communication component if one of the components is inoperative. The isolation module components are also configured to provide RF matching for the first and second transmission lines if one of the components is inoperative.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: April 15, 2014
    Assignee: Alcatel Lucent
    Inventors: Liang Hung, Michael Hodgetts
  • Patent number: 8692629
    Abstract: An apparatus and method for outputting high-frequency, high-power signals from low-frequency, low-power input is disclosed. The apparatus and method may provide a two-dimensional nonlinear lattice having a plurality of inductors and voltage-dependent capacitors intersecting at a plurality of nodes. Two or more adjacent boundaries of the nonlinear lattice may be provided with input signals which constructively interfere to output a signal of substantially higher amplitude and higher frequency than those of the input signals.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 8, 2014
    Assignee: Cornell University
    Inventors: Ehsan Afshari, Harish Bhat
  • Publication number: 20140035698
    Abstract: A panel antenna includes a microstrip-fed radiator array, each radiator being a crossed dipole, with the monopoles of the dipole being loops that are electrically closed and hybrid coupled to the adjacent loops within the radiator. The loops are spaced away from a ground plane. Each four loops and four support straps and a base can be cast as a single piece, for example, since the shorted ends of the support straps are a quarter wavelength away from the loops. The feed system uses asymmetric microstrip power dividers to provide branch feed to the dipoles. Coupling between the feed and the loops uses the support straps and terminates in a stub at the characteristic impedance. Each feed terminates so as to provide roughly a half wavelength of delay for the second monopole, making a differentially-driven dipole. The internal feed permits remote adjustment of phase.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 6, 2014
    Inventors: John L. Schadler, Mohammad Adeel, Mike Davison
  • Patent number: 8598966
    Abstract: In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss interface that the circuits are directly connected to. In another exemplary embodiment, the circuits are connected to a pin which is connected to the low loss interface. In yet another exemplary embodiment of the present invention, a multi-layer power amplifier is provided that comprises two or more chassis and circuits attached to impedance matching interfaces according to the present invention. This multi-layered power amplifier is configured to amplify an energy signal and have a significantly reduced volume compared to existing power combiners.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 3, 2013
    Assignee: ViaSat, Inc.
    Inventors: Noel Lopez, Charles Woods, Rob Zienkewicz, Jon Filreis
  • Patent number: 8559186
    Abstract: An inductor with patterned ground plane is described. In one design, the inductor includes a conductor formed on a first layer and a patterned ground plane formed on a second layer under the conductor. The patterned ground plane has an open center area and a shape matching the shape of the conductor. The patterned ground plane includes multiple shields, e.g., eight shields for eight sides of an octagonal shape conductor. Each shield has multiple slots formed perpendicular to the conductor. Partitioning the patterned ground plane into separate shields and forming slots on each shield help prevent the flow of eddy current on the patterned ground plane, which may improve the Q of the inductor. Multiple interconnects couple the multiple shields to circuit ground, which may be located at the center of the conductor.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: October 15, 2013
    Assignee: QUALCOMM, Incorporated
    Inventor: Zhang Jin
  • Publication number: 20130241671
    Abstract: A splitter includes an input terminal, a first output terminal, a second output terminal, a first transmitting unit including a first microstrip coupled between the input terminal and a first node, a second microstrip coupled between the input terminal and a second node, and a first resistor coupled between the first node and the second node, and a second transmitting unit including a third microstrip coupled between the first node and the first output terminal, a fourth microstrip coupled between the second node and the second output terminal, and a second resistor coupled between the first output terminal and the second output terminal, wherein lengths of the first microstrip and the second microstrip are related to a first frequency, and lengths of the third microstrip and the fourth microstrip are related to a second frequency.
    Type: Application
    Filed: July 16, 2012
    Publication date: September 19, 2013
    Inventors: Chen-Chia Huang, Chun-Feng Yang
  • Patent number: 8471647
    Abstract: In cases where a power divider is constructed by using a multilayer substrate, a power divider is obtained which is smaller in size and has a good reflection property. The power divider according to the present invention is provided with a multilayer dielectric substrate (1), strip conductor patterns (2a through 2c) formed on one surface of the multilayer dielectric substrate (1), and a ground conductor pattern (3) formed on the other surface of the multilayer dielectric substrate (1), wherein a transmission line is composed of the dielectric substrate (1), the strip conductor patterns (2a through 2c) and the ground conductor pattern (3), and the transmission line has its one end branched to form a plurality of branch lines (12a, 12b), with an isolation resistance (4) being formed between the branch lines.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: June 25, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yukihiro Tahara, Takeshi Yuasa, Naofumi Yoneda
  • Patent number: 8395460
    Abstract: A Radio Frequency (RF) splitter/combiner technique for splitting and combining RF signals using a combination of microstrip traces and coaxial cable for an N-port network is disclosed.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: March 12, 2013
    Assignee: xG Technology, Inc.
    Inventors: Nadeem Khan, William Pistole, III
  • Patent number: 8384494
    Abstract: A distributed multiband coupling circuit including: a number n of first and of second terminals equal to the number of frequency bands; a third terminal and a fourth terminal; a number n of distributed couplers equal to the number of frequency bands, all couplers being identical and sized according to the highest frequency band, and each coupler including a first conductive line between first and second ports intended to convey a signal to be transmitted in the concerned frequency band, and a second conductive line coupled to the first one between third and fourth ports; a first set of resistive splitters in cascade between the third ports of the couplers, a terminal of the splitter associated with the first coupler being connected to the third terminal of the coupling circuit; and a second set of resistive splitters in cascade between the fourth ports of the couplers, a terminal of the splitter associated with the first coupler being connected to the fourth terminal of the coupling circuit.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: February 26, 2013
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Claire Laporte, Hilal Ezzeddine
  • Patent number: 8362851
    Abstract: A high isolation power divider is disclosed, which includes a substrate, a first split arm, a second split arm, a signal input unit, a connection unit, a ground layer, a slit. The signal input unit is coupled to the first split arm and the second split arm for receiving an input signal and dividing the input signal to the first split arm and second split arm. The connection unit is coupled to the first split arm and the second split arm, wherein the connection unit, the first split arm, and the second split arm are deposited on a first plane of the substrate, and surround a first area. The ground layer is deposited on the second plane of the substrate for providing grounding. The slit is formed in the ground layer, wherein at least a part of the slit is formed within a second area corresponding to the first area.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: January 29, 2013
    Assignee: Wistron NeWeb Corporation
    Inventors: Wen-Tsai Tsai, Che-Ming Wang
  • Patent number: 8319581
    Abstract: A power amplifier having multiple solid state sub-amplifiers connected in parallel between an input and an output are described. The signal input to the power amplifier is provided to an RF splitter connected between an input connector and the input of each of the sub-amplifiers. The RF splitter splits the input power from the signal input and provides the power to the sub-amplifier inputs through input electrical paths. The input electrical paths from the power amplifier input to the sub-amplifiers are substantially identical. Each of the sub-amplifiers drive an input of an RF combiner connected between the outputs of the sub-amplifiers and the output of the power amplifier. The RF combiner combines the output power from each of the sub-amplifiers through output electrical paths, and provides the combined power to the power amplifier output. The output electrical paths from the sub-amplifiers to the power amplifier output are substantially identical.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: November 27, 2012
    Assignee: Keragis Corporation
    Inventor: Robert M. Rector
  • Patent number: 8319583
    Abstract: An N-way multi-layer radial power combiner/divider comprises an RF layer including N planar RF transmission lines radiating from a common port to N ports. An isolation layer substantially parallel to the RF layer comprises a star resistor having N resistive arms radiating from a common junction and N planar isolation transmission lines coupled in series to respective resistive arms. Each series pair of a resistive arm and an isolation transmission line is ideally a half-wavelength in electrical length. N vertical interconnects between the RF layer and the isolation layer connect the ends of the N isolation transmission lines to the ends of the N RF transmission lines at the N individual ports, respectively. Any path from one individual port through the common junction of the star resistor to another individual port is approximately a full wavelength ?c or multiple thereof so that the phase angle through the isolation network is approximately zero degrees.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: November 27, 2012
    Assignee: Raytheon Company
    Inventor: Steven E. Huettner
  • Publication number: 20120274413
    Abstract: A monolithic power splitter is used to split a pair of input differential signals into two pairs of output differential signals in the present invention. The monolithic power splitter has two input terminals to receive a pair of input differential signals, and it has two one-by-two power splitters integrated in one single chip to split a pair of input differential signals into two pairs of output differential signals with equal power. And, the monolithic power splitter has four output terminals to output two pairs of output differential signals. In one embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on the same surface of the substrate. In another embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on opposite surfaces of the substrate. The monolithic power splitter can be used as a power combiner based on the reciprocal property of the power splitter circuit.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 1, 2012
    Applicant: CYNTEC CO., LTD.
    Inventor: Shih-Hsien Tseng
  • Patent number: 8242860
    Abstract: A sequential rotated feeding circuit for sequential rotated feeding of a signal with a wavelength ?g is provided. The sequential rotated feeding circuit comprises a feed transformer, a resistance transforming unit, a first antenna transformer, a second antenna transformer, a third antenna transformer and a fourth antenna transformer. The feed transformer has a feed line width resistance Zin. The resistance transforming unit is connected to the feed transformer, the first antenna transformer, the second antenna transformer, the third antenna transformer and the fourth antenna transformer. The resistance transforming unit has a transforming line width resistance Zl.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: August 14, 2012
    Assignee: National Taiwan University
    Inventors: Shih-Kai Lin, Yi-Cheng Lin
  • Patent number: 8222968
    Abstract: A method for manufacturing a microstrip transmission line device includes forming a resistor layer on an insulating or dielectric substrate having a back face where a metal layer to be grounded is provided. The method also includes removing the formed resistor layer except for a part of the formed resistor layer which requires a resistor. Further, the method includes forming a metal conductive layer on the remaining part of the resistor layer. The metal conductive layer contacts the substrate. The method additionally includes removing the formed metal conductive layer at a part required as a resistor except for a part required for connection to the resistor, the parts being included at the remaining part of the resistor layer.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: July 17, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kazutaka Takagi