Utilizing Long Line Element Patents (Class 333/134)
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Patent number: 8072294Abstract: The filter has a switch function of selectively transmitting a transmission signal through one of first and second branch waveguides branching from a primary waveguide. The filter includes resonators disposed in the first and second branch waveguides. The resonator includes a space formed inside a metal cover, a central conductor disposed inside the space, and a short-circuiting plate. The central conductor has one end grounded to an outer conductor. The short-circuiting plate allows the neighborhood of an open end of the central conductor to be selectively conducted to the outer conductor. The filter performs a selection from the first and second branch waveguides by switching electrical conductivity in a region between the neighborhood of the open end of the central conductor and the outer conductor.Type: GrantFiled: December 5, 2008Date of Patent: December 6, 2011Assignees: NEC Corporation, NEC Engineering, Ltd.Inventors: Hiroshi Tanpo, Tsuyoshi Hamada
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Patent number: 8072295Abstract: A radio frequency (RF) cavity resonator having a resonator chamber and one or more RF coupling loop assemblies is presented. The RF coupling loop assembly has a connector with a first connector interface coupled to an inner conductor and a second connector interface coupled to an outer conductor, the first and second connector interfaces forming a pair when mated, the second connector interface rotatable about a collinear axis of the connector and the first connector interface not rotatable about the collinear axis of the connector; a wire loop coupler; and a bandwidth selection element at least partially coupled to the coupling loop assembly. In response to changing the bandwidth selection setting while the RF cavity resonator is operational, the wire loop changes orientation about the collinear axis of the connector and causes the RF resonator chamber to output an RF carrier signal having a bandwidth of the new bandwidth setting.Type: GrantFiled: December 22, 2008Date of Patent: December 6, 2011Assignee: Motorola Solutions, Inc.Inventor: Robert A. Richter, Jr.
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Patent number: 8064843Abstract: An electrical component includes a first signal path and a second signal path electrically connected to a common signal path. The electrical component also includes a first filter in the first signal path and a second filter in the second signal path. The electrical component also includes a first matching circuit comprising a shunt arm to ground. The first matching circuit is electrically connected to the first signal path, the second signal path, and the common signal path.Type: GrantFiled: September 1, 2006Date of Patent: November 22, 2011Assignee: EPCOS AGInventors: Luigi Rosetti, Juergen Kiwitt, Maximilian Pitschi, Andreas Fleckenstein, Andreas Przadka
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Publication number: 20110279194Abstract: In a duplexer module, a transmitting signal is correctly monitored without deteriorating receiving sensitivity. The duplexer module includes a transmission line, a reception line, and an antenna common line, and performs conversion between a transmission signal and a reception signals and antenna common signals. A transmission filter is inserted into the transmission line, and the transmission filter allows the transmission signal to pass therethrough and stops the reception signal. A reception filter is inserted into the reception line, and the reception filter allows the reception signal to pass therethrough and stops the transmission signal. A first line of a coupler which detects the transmitting signal is inserted into the transmission line at a stage subsequent to the transmission filter.Type: ApplicationFiled: July 28, 2011Publication date: November 17, 2011Applicant: MURATA MANUFACTURING CO., LTD.Inventor: Koji FURUTANI
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Patent number: 8049578Abstract: Air loaded stripline assemblies and methods for providing same are disclosed. The air loaded stripline assembly includes circuit board layers interconnected to one another. A layer containing a conductive trace forming a stripline is connected to spacer layers. The spacer layers include voids or relieved areas, that define cavities adjacent areas of the stripline layer on which the stripline is formed. Ground plane layers are interconnected to the spacer layers, bounding the cavities. The air loaded stripline assembly can additionally incorporate conductive vias for electrically interconnecting the stripline to other components or assemblies. The air loaded stripline assembly can be formed using conventional printed circuit board techniques.Type: GrantFiled: August 17, 2009Date of Patent: November 1, 2011Assignee: Ball Aerospace & Technologies Corp.Inventors: Luke J. Albers, Dean A. Paschen
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Publication number: 20110248793Abstract: A CRLH resonator-based band-pass filter includes at least two CRLH resonators. The resonators are connected by capacitive coupling. The resonators includes a microstrip line having input and output ports. The microstrip line includes a first interdigital line serial-connected to the input port, a second interdigital line serial-connected to the output port, a connection line connecting the first and second interdigital lines, and an inductor line parallel-connected to the connection line and provided with a grounded end.Type: ApplicationFiled: November 3, 2010Publication date: October 13, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Dong-Ho Kim, Jae-Ick Choi, Sungtek Kahng, Geonho Jang
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Patent number: 8031035Abstract: A ceramic multilayer construction includes three resonators designed as parallel strip lines that are capacitatively or magnetically coupled to each other. All circuit components are implemented in the form of metallizations in multilayer construction. Capacitative couplings are implemented by coupling capacitors. The strip line resonators are shortened by shunt arms to ground having grounding capacitors arranged therein.Type: GrantFiled: October 7, 2010Date of Patent: October 4, 2011Assignee: EPCOS AGInventors: Alexander Chernyakov, Georgiy Sevskiy, Patric Heide, Borys Vorotnikov
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Patent number: 8013688Abstract: The present invention provides all organic fully-packaged miniature bandpass filters, baluns, diplexers, multiplexers, couplers and a combination of the above manufactured using liquid crystalline polymer (LCP) and other multilayer polymer based substrates. These devices are manufactured using one or more LCP layers having integrated passive components formed thereon to provide the density and performance necessary for multi-band wireless devices. In the designs involving multiple LCP layers, the LCP layers are separated by prepeg layers. In accordance with an aspect of the present invention, coplanar waveguide, hybrid stripline/coplanar waveguide and/or microstrip topologies are utilized to form the integrated passive components, and the devices can be mass produced on large area panels at least 18 inches by 12 inches with line widths smaller than 10 um.Type: GrantFiled: August 11, 2010Date of Patent: September 6, 2011Assignee: Georgia Tech Research CorporationInventors: George E. White, Madhavan Swaminathan, Venkatesh Sundaram, Sidharth Dalmia
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Patent number: 8014731Abstract: Circuitry includes a voltage-controlled switch having a transmitter input, a receiver input, and an output that connects to one of the transmitter input and the receiver input. Passive components form a low-pass filter that is electrically connected to the transmitter input. The passive components are part of a multilayer ceramic passive module that includes a base body made of superimposed dielectric layers and electrically conductive layers. The voltage-controlled switch is on an upper portion or a lower portion of the base body.Type: GrantFiled: January 17, 2002Date of Patent: September 6, 2011Assignee: EPCOS AGInventors: Christian Block, Holger Fluehr
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Publication number: 20110210805Abstract: A duplexer includes an antenna terminal, a transmission amplifier terminal and a reception amplifier terminal. The transmission amplifier terminal is coupled to the antenna terminal via a transmission filter. The reception amplifier terminal is coupled to a reception filter and the reception filter is coupled to the antenna terminal via a band-stop filter.Type: ApplicationFiled: February 24, 2011Publication date: September 1, 2011Applicant: EPCOS AGInventors: Andreas Link, Bernhard Bader
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Patent number: 8008990Abstract: The invention relates generally to RF and microwave multiplexers implemented with a plurality of coupled resonators. More specifically, the present invention relates to multiplexers configured to require only a plurality of resonators and series, shunt, cross couplings and input/output couplings between them. It is a main feature of the invention that no microwave dividers, combiners, circulators, or other junctions are necessary for the distribution of microwave energy among the coupled resonators. This is achieved for example by a P-channel multiplexer comprising P rows of coupled resonators, a common input terminal connected to the first resonator of at least one of said rows, and P channel output terminals connected with the last resonator in each row, and at least one coupling between resonators belonging to different rows.Type: GrantFiled: November 22, 2005Date of Patent: August 30, 2011Assignee: ThalesInventors: Isidro Hidalgo Carpintero, Manuel Jesus Padilla Cruz, Alejandro Garcia Lamperez, Magdalena Salazar Palma
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Patent number: 7994875Abstract: The present invention discloses a tri-frequency duplexer circuit and multi-frequency duplexer circuit. The tri-frequency duplexer circuit comprises a microstrip line circuit, two first mushrooms, two second mushrooms and two third mushrooms. The microstrip line circuit comprises a first Input/Output (I/O) port, a second I/O port, a third I/O port and a fourth I/O port. The two first mushrooms are respectively disposed at transmission line paths between the first I/O port and the second I/O port and between the first I/O port and the third I/O port. The two second mushrooms are respectively disposed at transmission line paths between the first I/O port and the second I/O port and between the first I/O port and the fourth I/O port. The two third mushrooms are respectively disposed at transmission line paths between the first I/O port and the third I/O port and between the first I/O port and the fourth I/O port.Type: GrantFiled: May 21, 2009Date of Patent: August 9, 2011Assignee: National Chiao Tung UniversityInventors: Fu-Chiarng Chen, Shi-Yung Wang
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Patent number: 7982555Abstract: Methods and systems for processing signals via power splitters embedded in an integrated circuit package may include generating via a power splitter, one or more RF signals proportional to one or more received RF signals. The power splitter may be integrated in a multi-layer package. The generated RF signals may be processed via an integrated circuit, which may be electrically coupled to the multi-layer package. The power splitters may include quarter wavelength transmission lines. The transmission lines may include a microstrip structure or a coplanar structure. The power splitters may be bonded to one or more capacitors in the integrated circuit. The capacitors may include CMOS devices in the integrated circuit. The power splitters may include lumped devices which may include surface mount devices coupled to the multi-layer package or devices within the integrated circuit, which may be flip-chip bonded to the multi-layer package.Type: GrantFiled: March 28, 2008Date of Patent: July 19, 2011Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
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Patent number: 7983649Abstract: A RF device such as a tower mounted amplifier (TMA), mast-head amplifier (MHA), or Tower Mounted Boosters (TMB) includes a housing having a plurality of cavities and an input and an output, the input being coupled to the antenna and the output being coupled to a base station. The housing includes a transmission path holding multiple coaxial resonators. The housing further includes multiple receive paths including at least one path having a plurality of cavities, each cavity containing a dielectric resonator. The metallic transmit resonator nearest the antenna input is coupled to the first dielectric resonator via a common resonant wire. The last dielectric resonator in the receive path is coupled to a first metallic resonator of a downstream clean-up filter via another common resonant wire.Type: GrantFiled: April 30, 2010Date of Patent: July 19, 2011Assignee: Antone Wireless CorporationInventors: Michael M. Eddy, Gregory L. Hey-Shipton
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Publication number: 20110169589Abstract: According to the teachings presented herein, a reconfigurable filter apparatus includes at least first and second passive filter sections connected in parallel to yield a composite filter response. Each passive filter section has a respective passband response and at least one of the passive filter sections is a ‘de-tunable’ passive filter section. Each de-tunable passive filter circuit includes a detuning circuit operable to exclude the respective passband response of the de-tunable passive filter section from the composite filter response by detuning a resonator within the de-tunable passive filter section. ‘Detuning’ the resonator can be understood as short-circuiting, opening the resonator, or otherwise disabling it, such that the filter path is blocked.Type: ApplicationFiled: September 8, 2008Publication date: July 14, 2011Inventors: Bosse Franzon, Daniel Källberg
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Patent number: 7973617Abstract: An unequal three-way divider divides an input signal into three in-phase signals whose power ratio is different between a center and both ends. The unequal three-way divider includes an input terminal, and three output terminals for outputting a three-divided signal respectively, and three transmission lines branched from the input terminal are provided between the input terminal and the three output terminals. The transmission line connected to the center output terminal has a first transmission line which is connected in series and a second transmission line whose electrical length is ¼ wave length. Two transmission lines connected to the output terminals at both ends have a third transmission line which is connected in series and a fourth transmission line whose electrical length is ¼ wave length respectively.Type: GrantFiled: September 20, 2007Date of Patent: July 5, 2011Assignee: Panasonic CorporationInventors: Hiroyuki Yurugi, Wataru Noguchi
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Publication number: 20110140804Abstract: A band pass filter combiner carrying a broadband signal with a central frequency comprises a power divider, a high pass band filter, a low pass band filter, and a power combiner. The distance from the signal input port of the power divider to each of signal input ports of the high pass band filter and the low pass band filter is equal to a quarter of the wavelength at the central frequency. The distance from each of signal output ports of the high pass band filter and the low pass band filter to the signal output port of the power combiner is also equal to a quarter of the wavelength at the central frequency.Type: ApplicationFiled: December 15, 2009Publication date: June 16, 2011Applicant: MICROELECTRONICS TECHNOLOGY INC.Inventors: CHE YAO FAN, HONG RU SUCHEN
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Patent number: 7956706Abstract: A multiband filtering apparatus (40) for use in a communications system, said apparatus including a housing (21); a plurality of cavities (22.1, 22.2) disposed within said housing wherein each cavity includes a resonant structure, the resonant structure having at least one ceramic element (23.1, 23.2); at least one input port (27) coupled to a first resonator of said plurality of resonators; at least one output port (28) coupled to a second resonator of said plurality of resonators; and a closure member (25) adapted to engage said housing (21) and cap said cavities.Type: GrantFiled: September 9, 2005Date of Patent: June 7, 2011Assignee: Filtronic PLCInventors: Christine Blair, Mostafa Mohamed Taher AbuShaaban
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Patent number: 7956702Abstract: A balun having a first balanced terminal, a second balanced terminal and an unbalanced terminal, includes a filter unit and a first transmission line. The filter unit is connected to the first balanced terminal, the second balanced terminal and the unbalanced terminal, and includes a low-pass filter and a high-pass filter. The first transmission line is connected between the filter unit and the first balanced terminal.Type: GrantFiled: October 31, 2008Date of Patent: June 7, 2011Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Hwan Lee, Hee Soo Yoon
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Patent number: 7948070Abstract: A semiconductor package having an impedance matching device is disclosed, which is especially applicable to conventional system-in-package structures and system packaging design with high-density I/O design. The impedance matching device achieves impedance matching between a semiconductor chip and a signal transmission wiring on the substrate or between different systems integrated in the semiconductor package by employment of a vertical conductive line or combination of a vertical conductive line and a stub transmission line. The vertical conductive line is electrically connected with the signal transmission wiring on the substrate at one end thereof, and the stub transmission line may be further connected to the other end of the vertical conductive line. This impedance matching device helps to effectively reduce the wiring area of an impedance matching network of the semiconductor package and enhance the flexibility and interchangeability in layout of the wiring.Type: GrantFiled: February 13, 2008Date of Patent: May 24, 2011Assignee: Advanced Semiconductor Engineering, Inc.Inventors: Tseng-ying Chuang, Pao-nan Li
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Patent number: 7948332Abstract: A radio frequency (RF) channelizer includes a first four-port balun, a second four part balun and a pair of filters coupled between the first and second four port baluns. The filters operate such that RF signals having a frequency within a desired frequency band (so-called “in-band” signals) can propagate between the first and second baluns (e.g. from the first balun to the second balun) while signals having a frequency outside the desired frequency band (so-called “out-of-band signals”) are reflected back to the first balun. One filter reflects out-of-band signals while maintaining the magnitude and phase of the signal (i.e. with a 0 degree phase shift), while the other filter reflects out-of-band signals with a phase-reversal (i.e. with a 180 degree phase shift). With this approach, the reflected signals propagate to a sum port (or even mode port) of the first balun. In this way, the balun-filter combination results in a channelizer which separates signals into different frequency bands.Type: GrantFiled: September 30, 2008Date of Patent: May 24, 2011Assignee: Raytheon CompanyInventors: Keith D. Trott, Robert V. Cummings, Mark R. DeLuca, Ronni J. Cavener, Joseph P. Biondi, George S. Lafave, Jeffrey D. Cotton
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Patent number: 7924116Abstract: A diplexer provides a high degree of design freedom for satisfying the requirements of electric characteristics so as to realize desired characteristics and at the same time can be downsized and a multiplexer is realized by using such a diplexer. The diplexer includes a filter having a first pass band and a filter having a second pass band with a frequency band at least twice as high as the frequency band of the first pass band, the filter having the first pass band being a filter of the lumped constant type, the filter having the second pass band being a filter of the distributed constant type.Type: GrantFiled: January 22, 2008Date of Patent: April 12, 2011Assignee: NGK Spark Plug Co., Ltd.Inventors: Syouji Ono, Tetsuo Suehiro, Jyunichi Ichikawa, Keiji Takagi, Manabu Sato
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Patent number: 7920035Abstract: A microwave, power splitter/combiner (20) is formed as part of a multilayer laminate (27, 28, 29, 33, 34) such that two ports (22, 23) are connected by plated vias (31, 32) to conductive pads (29, 30) connected across an isolation resistor (27). Furthermore, a microwave circuit is provided in the form of a multi-layer laminate including a substrate carrying a resistive layer which has been etched to define at least one resistor, a dielectric membrane covering the resistor, a conductive layer defining at least part of an electrical circuit, and said at least one resistor is electrically connected to the conductive layer by vias extending through the dielectric membrane.Type: GrantFiled: November 29, 2006Date of Patent: April 5, 2011Assignee: Selex Galileo Ltd.Inventor: Gary David Panaghiston
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Publication number: 20110074521Abstract: A ceramic multilayer construction includes three resonators designed as parallel strip lines that are capacitatively or magnetically coupled to each other. All circuit components are implemented in the form of metallizations in multilayer construction. Capacitative couplings are implemented by coupling capacitors. The strip line resonators are shortened by shunt arms to ground having grounding capacitors arranged therein.Type: ApplicationFiled: October 7, 2010Publication date: March 31, 2011Inventors: Alexander Chernyakov, Georgiy Sevskiy, Patric Heide, Borys Vorotnikov
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Patent number: 7904030Abstract: For example, in a conventional high frequency switch used for a mobile phone and so on, high frequency distortion is caused by a diode which is turned off upon transmission. A high frequency switch includes a switch circuit for switching transmission and reception performed via a transmitting terminal and receiving terminals, said switch circuit having a diode turned off upon transmission, and a low-pass filter for suppressing high frequency distortion caused by the diode upon transmission.Type: GrantFiled: March 27, 2002Date of Patent: March 8, 2011Assignee: Panasonic CorporationInventors: Kazuhide Uriu, Toru Yamada, Hideaki Nakakubo, Masaharu Tanaka
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Patent number: 7902941Abstract: It is possible to generate an additionally attenuation pole in a laminate type band pass filter without adding an attenuation circuit and improve the attenuation characteristics of the laminate type band pass filter by independently controlling the frequencies of the attenuation poles. A diplexer is realized by using at least such a filter.Type: GrantFiled: April 29, 2008Date of Patent: March 8, 2011Assignee: NGK Spark Plug Co., Ltd.Inventors: Syouji Ono, Tetsuo Suehiro, Jyunichi Ichikawa, Keiji Takagi, Manabu Sato
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Patent number: 7898361Abstract: An antenna feed coupling structure of a duplexer is disclosed to include a base defining a detoured resonance cavity and a T-shaped feed-in cavity perpendicularly intersecting the resonance cavity and a signal input port in connection with the head of the feed-in cavity, a cover closing the base, and adjustment rods mounted in the base and suspending in the resonance cavity and the feed-in cavity. The adjustment rods include two feed-in adjustment rods and two coupling structure adjustment rods suspending in the intersected area between the resonance cavity and the feed-in cavity and respectively kept in horizontal and in vertical relative to the resonance cavity and rotatable inwards and outwards to adjust the feed-in amount and coupling structure amount of the antenna feed coupling structure respectively.Type: GrantFiled: March 12, 2009Date of Patent: March 1, 2011Assignee: Universal Microwave Technology, Inc.Inventors: Jen-Ti Peng, Chien-Chih Lee
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Patent number: 7893791Abstract: Devices and systems for using a Gallium Nitride-based (GaN-based) transistor for selectively switching signals are provided. A first transmission line is configured to connect a common connection and a first connection. A first Gallium-Nitride-based (GaN-based) transistor has a first terminal coupled to the first transmission line at a first point, a second terminal coupled to a relative ground, and a third terminal configured to be coupled to a first control connection. A second GaN-based transistor has a first terminal coupled to the first transmission line at a second point, a second terminal configured to be coupled to the relative ground, and a third terminal configured to be coupled to the first control connection.Type: GrantFiled: October 22, 2008Date of Patent: February 22, 2011Assignee: The Boeing CompanyInventors: Yin Tat Ma, Jonathan Hacker, Karim S. Boutros
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Publication number: 20110037535Abstract: An elastic wave filter device includes first and second inductance elements included in a laminated substrate and first and second elastic wave filter chips mounted on the laminated substrate by flip-chip bonding. The first and second inductance elements provided in the laminated substrate include first and second coil patterns, respectively, which are provided in a plane located at a certain height level in the laminated substrate. The second coil pattern is arranged in a region in which the first coil pattern is provided.Type: ApplicationFiled: October 25, 2010Publication date: February 17, 2011Applicant: Murata Manufacturing Co., Ltd.Inventor: Hidekazu KITAMURA
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Patent number: 7880562Abstract: A balanced-output triplexer includes: a first filter provided between an input terminal and a pair of first balanced output terminals; a second filter provided between the input terminal and a pair of second balanced output terminals; and a third filter provided between the input terminal and a pair of third balanced output terminals. Each of the first to third filters has a pair of output resonators that are interdigital-coupled to each other and connected to the corresponding pair of balanced output terminals.Type: GrantFiled: November 14, 2008Date of Patent: February 1, 2011Assignee: TDK CorporationInventors: Atsunori Okada, Tatsuya Fukunaga, Hideya Matsubara, Steve Plager
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Patent number: 7876175Abstract: A diplexer for receiving and transmitting a first bandwidth signal corresponding to a first central frequency and a second bandwidth signal corresponding to a second central frequency includes a first signal end, a second signal end, a third signal end, a first impedance unit, a second impedance unit and a third impedance unit. The first impedance unit forms an impedance match with the third impedance unit when the third signal end receives or transmits the first bandwidth signal, and forms a high impedance unit when the third signal end receives or transmits the second bandwidth signal. The second impedance unit forms an impedance match with the third impedance unit when the third signal end receives or transmits the second bandwidth signal, and forms a high impedance unit when the third signal end receives or transmits the first bandwidth signal.Type: GrantFiled: November 3, 2008Date of Patent: January 25, 2011Assignee: Ralink Technology Corp.Inventor: Min-Shun Hsu
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Publication number: 20110006856Abstract: Various multi-mode resonant filters including a housing having a cavity, are provided. The multi-mode resonant filters include a Dielectric Resonant (DR) element received in the cavity of the housing, and a plurality of transmission lines for connecting a point on one of a first axis, a second axis, and a third axis with a point on another axis. The first axis, the second axis, and the third axis are orthogonal to each other with respect to a center of the DR element.Type: ApplicationFiled: July 9, 2010Publication date: January 13, 2011Applicant: KMW INC.Inventors: Duk-Yong KIM, Nam-Shin Park
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Publication number: 20110006857Abstract: Provided is a composite resonator wherein two resonance frequencies can be set discretionarily to a certain extent. The composite resonator is provided with a grounding electrode (21) arranged on a lower surface of a laminated body wherein a plurality of dielectric layers (11) are laminated, and a composite resonant electrode (26) arranged on an upper surface or inside of the laminated body. The composite resonant electrode (26) is composed of a base section (27) and a plurality of strip-like protruding sections (28a, 28b). One end of the base section (27) is grounded. One end of each of the protruding sections (28a, 28b) is connected to the other end of the base section (27), and the protruding sections are arranged in parallel.Type: ApplicationFiled: February 18, 2009Publication date: January 13, 2011Applicant: Kyocera CorporationInventor: Hiromichi Yoshikawa
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Publication number: 20100253448Abstract: A diplexer that can demultiplex and multiplex two signals having wide frequency bands, and a wireless communication module and a wireless communication apparatus using the same, are provided. A diplexer has a multilayer body including a first interlayer, a second interlayer and a third interlayer. On the first interlayer, first resonant electrodes are disposed in an interdigital form. On the second interlayer, a plurality of second resonant electrodes are disposed in an interdigital form. On the third interlayer, there are disposed an input coupling electrode that faces the input-stage first resonant electrode and the input-stage second resonant electrode in an interdigital form, a first output coupling electrode that faces the output-stage first resonant electrode in an interdigital form, and a second output coupling electrode that faces the output-stage second resonant electrode.Type: ApplicationFiled: October 24, 2008Publication date: October 7, 2010Applicant: KYOCERA CORPORATIONInventors: Hiromichi Yoshikawa, Shinji Isoyama, Katsuro Nakamata
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Patent number: 7808345Abstract: A dielectric resonator is constructed so as to have a substantially cruciform shape in cross section by including four plate components. A first set of opposed plate components have respective first principal center planes separated from each other and substantially parallel with each other. A second set of opposed plate components also have respective second principal center planes separated from each other and substantially parallel with each other. The first principal center planes are orthogonal to the second principal center planes. With this configuration, a TE01?y mode in which an electric-field vector rotates within the first set of opposed plate components and a TE01?z mode in which an electric-field vector rotates within the second set of opposed plate components are coupled.Type: GrantFiled: October 30, 2008Date of Patent: October 5, 2010Assignee: Murata Manufacturing Co., Ltd.Inventors: Masamichi Andoh, Kunihiro Komaki
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Publication number: 20100231323Abstract: A ceramic monoblock filter including a direct signal path defined by at least four spaced-apart through-hole resonators in combination with ground bars extending between the through-hole resonators and a separate quadruplet cross-coupling alternate signal path defined by two conductive pads located adjacent the first and fourth ones of the through-hole resonators respectively and a separate external bridge member which interconnects and couples the two pads. The bridge member is preferably made of a material having a lower dielectric constant than the block of the filter. In one embodiment, the filter is a monoblock duplexer filter comprising respective transmit and receive sections each including at least four of the through-hole resonators, the ground bars, the two pads, and the bridge member. In the duplexer embodiment, additional through-hole resonators may define shunt zeros.Type: ApplicationFiled: May 4, 2010Publication date: September 16, 2010Inventors: Reddy Vangala, Tri Dinh
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Patent number: 7795995Abstract: The present invention provides all organic fully-packaged miniature bandpass filters, baluns, diplexers, multiplexers, couplers and a combination of the above manufactured using liquid crystalline polymer (LCP) and other multilayer polymer based substrates. These devices are manufactured using one or more LCP layers having integrated passive components formed thereon to provide the density and performance necessary for multi-band wireless devices. In the designs involving multiple LCP layers, the LCP layers are separated by prepeg layers. In accordance with an aspect of the present invention, coplanar waveguide, hybrid stripline/coplanar waveguide and/or microstrip topologies are utilized to form the integrated passive components, and the devices can be mass produced on large area panels at least 18 inches by 12 inches with line widths smaller than 10 um.Type: GrantFiled: February 23, 2005Date of Patent: September 14, 2010Assignee: Georgia Tech Research CorporationInventors: George E. White, Madhavan Swaminathan, Venkatesh Sundaram, Sidharth Dalmia
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Patent number: 7787831Abstract: A high-frequency switch is constructed by connecting a first diode and a second diode that function as switching elements, inductors, capacitors, and resistors. One end of the resistor is connected between the first diode and the second diode, and the other end of the resistor is connected to the ground. Thus, charges accumulated in the diodes in the ON states are immediately released to ground via the resistor. Accordingly, quick switching from the transmission mode to the reception mode by switching of a control power supply terminal from ON to OFF is achieved.Type: GrantFiled: August 10, 2007Date of Patent: August 31, 2010Assignee: Murata Manufacturing Co., Ltd.Inventors: Takanori Uejima, Naoki Nakayama
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Publication number: 20100207705Abstract: The present disclosure relates to telecommunication, and in particular, to a base station Radio Frequency (RF) duplexer, an RF module, and an RF system. A base station RF apparatus provided herein includes: an enclosure, an intermediate RF processing unit, and a duplexer. The enclosure is located on the duplexer; the intermediate RF processing unit is located inside a cavity enclosed by the enclosure and the duplexer, or on the duplexer; a duplexer cavity and a heat dissipation part exist on the surface of the duplexer; the opening of the duplexer cavity is opposite to or against the enclosure; the heat dissipation part is designed to dissipate heat of the intermediate RF processing unit; and the duplexer is integrally molded. The foregoing technical solution requires no external fasteners, reduces the time of production and assembly. In addition, waterproof design and shielding design are not required, and thus improves the reliability.Type: ApplicationFiled: February 12, 2010Publication date: August 19, 2010Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Haizhao Wang, Guangfu Si, Naier Meng, Bo Yang, Puke Zhou, Shengxiang Gao, Yi Zhang, Weihua Sun, Jianjun Zhou, Ke Zhang, Hao Li, Zhiwei Shang, Runxiao Zhang
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Patent number: 7777594Abstract: For the cost effective implementation of negative-index refraction, an anisotropic hyperbolic planar metamaterial is provided. The material has a first set of substantially parallel, unloaded and coplanar transmission lines that are spaced with a periodicity dy. It has a second set of substantially parallel, unloaded and coplanar transmission lines that are spaced with a periodicity dx and are coplanar and substantially orthogonal with the first set of transmission lines. The periodicities of the first set and second set of transmission lines are governed by the relationship ?x(fr)dx+?y(fr)dy=2?, where: ?x and ?y are the intrinsic propagation constants of electromagnetic waves of frequency fr propagating along the first and second set of transmission lines, respectively.Type: GrantFiled: August 9, 2005Date of Patent: August 17, 2010Assignee: Ontario Centres of Excellence Inc.Inventor: George V. Eleftheriades
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Patent number: 7777593Abstract: An improved high frequency filter displays the following features: the high frequency filter displays transmission behavior with a coupling impedance resonance having at least one blocking point at a frequency, the blocking point at the frequency being adjustable by presetting and/or preselecting a defined capacitive and inductive coupling between two coaxial resonators, one immediately following the other on a signal path.Type: GrantFiled: December 27, 2006Date of Patent: August 17, 2010Assignee: Kathrein-Werke KGInventor: Wilhelm Weitzenberger
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Publication number: 20100188167Abstract: A compact Ku band microwave diplexer configured as a three port surface mount component on a miniature alumina substrate. Input signals occurring at a common port having frequencies within a first pass band are passed to a second port while being isolated from signals occurring at a third port. Signals occurring at the third port are passed to the common port while being isolated from the signals at the second port. A microstrip dual spur line filter is used combined with open circuit stubs to provide enhanced second harmonic suppression on the transmit side, while using a coupled line microstrip filter on the receive side. This approach allows for compact size and automated component assembly through pick and place and reflow manufacturing techniques.Type: ApplicationFiled: September 7, 2007Publication date: July 29, 2010Applicant: Qualcomm IncorporatedInventors: Jeff Devereux, Fritz Gerd Berger, William A. Johnston, Mohammad Ali Tassoudji, Scott Aldern
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Publication number: 20100171566Abstract: A circuit for combining/splitting first and second RF signals having different wavelengths of x and y, respectively, the circuit comprising: (a) first and second transmission portions coupled at an intersection, the first transmission portion comprising at least two intersecting transmission lines, each having a length which is an odd multiple of about ¼y, the second transmission portion comprising at least two intersecting transmission lines, each having a length which is an odd multiple of about ¼x; and (b) first, second and third ports, the first port located at the first transmission portion, the second port located at the intersection of the first and second transmission portions, and the third port being located at the second transmission portion, the first and second ports being electrically coupled, and the second and third ports being electrically coupled.Type: ApplicationFiled: October 6, 2009Publication date: July 8, 2010Inventor: Clyde Maynord Callewaert
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Patent number: 7746197Abstract: A noise filter array includes filter elements, each of which includes an LC parallel resonant circuit having a coil and a capacitor and an LC series resonant circuit having a coil and a capacitor, are arranged substantially parallel to one another in an array and integrally provided. Grounding capacitors that define the filter elements are arranged so that a common ground-side electrode faces signal-side electrodes and is connected to an inductance adjusting conductor that defines the LC series resonant circuits along with the capacitors through a via hole. The lengths of the inductance adjusting conductor from a connection location within the via hole to ground terminals are substantially equal in each of the filter elements.Type: GrantFiled: January 12, 2009Date of Patent: June 29, 2010Assignee: Murata Manufacturing Co., Ltd.Inventors: Kenjiro Hadano, Tomohiro Sasaki, Haruhiko Ueno
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Publication number: 20100156555Abstract: A radio frequency (RF) cavity resonator having a resonator chamber and one or more RF coupling loop assemblies is presented. The RF coupling loop assembly has a connector with a first connector interface coupled to an inner conductor and a second connector interface coupled to an outer conductor, the first and second connector interfaces forming a pair when mated, the second connector interface rotatable about a collinear axis of the connector and the first connector interface not rotatable about the collinear axis of the connector; a wire loop coupler; and a bandwidth selection element at least partially coupled to the coupling loop assembly. In response to changing the bandwidth selection setting while the RF cavity resonator is operational, the wire loop changes orientation about the collinear axis of the connector and causes the RF resonator chamber to output an RF carrier signal having a bandwidth of the new bandwidth setting.Type: ApplicationFiled: December 22, 2008Publication date: June 24, 2010Applicant: Motorola, Inc.Inventor: ROBERT A. RICHTER, JR.
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Publication number: 20100148889Abstract: The present invention relates to a high-frequency component with an internal conductor structure (2) which is electrically insulated by at least one insulation element (4, 5) relative to an external conductor, wherein the insulation element (4, 5) mechanically supports the internal conductor structure (2). The insulation element (4, 5) consists of a film (10) shaped to a three-dimensional structure and hardened with this three-dimensional structure by sintering, which film is a film of an electrically insulating material with a wall thickness which is smaller than a thickness of the insulation element (4, 5) realised by the three-dimensional structure. The insulation element of the proposed high-frequency component can be produced inexpensively and leads to a lower insertion loss for the component compared to components made from solid insulation elements.Type: ApplicationFiled: April 25, 2008Publication date: June 17, 2010Inventors: Peter Bohmer, Michael Schubert
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Patent number: 7738853Abstract: A RF device such as a tower mounted amplifier (TMA), mast-head amplifier (MHA), or Tower Mounted Boosters (TMB) includes a housing having a plurality of cavities and an input and an output, the input being coupled to the antenna and the output being coupled to a base station. The housing includes a transmission path holding multiple coaxial resonators. The housing further includes multiple receive paths including at least one path having a plurality of cavities, each cavity containing a dielectric resonator. The metallic transmit resonator nearest the antenna input is coupled to the first dielectric resonator via a common resonant wire. The last dielectric resonator in the receive path is coupled to a first metallic resonator of a downstream clean-up filter via another common resonant wire.Type: GrantFiled: April 30, 2007Date of Patent: June 15, 2010Assignee: Antone Wireless CorporationInventors: Michael M. Eddy, Gregory L. Hey-Shipton
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Publication number: 20100127795Abstract: A band-stop filter is proposed which is constructed on a multilayered substrate and consists of a parallel circuit comprising a bandpass filter and a high-pass filter. The two filters are at least partly realized in the form of LC-elements integrated into the substrate. Further circuit components can be arranged as discrete components on the substrate. In the filter branch having the bandpass filter, an electroacoustic resonator is arranged in a transverse branch to ground. By means of the filter, a wide stop band is obtained, while the passband or passbands can comprise a plurality of radio bands.Type: ApplicationFiled: November 24, 2009Publication date: May 27, 2010Inventors: Thomas Bauer, Andreas Przadka
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Publication number: 20100123526Abstract: A balanced-output triplexer includes: a first filter provided between an input terminal and a pair of first balanced output terminals; a second filter provided between the input terminal and a pair of second balanced output terminals; and a third filter provided between the input terminal and a pair of third balanced output terminals. All of the first to third filters are provided within a layered substrate. All of the balanced output terminals are disposed to be adjacent to one of the sides of the top surface of the layered substrate and one of the sides of the bottom surface of the layered substrate.Type: ApplicationFiled: October 7, 2009Publication date: May 20, 2010Applicant: TDK CORPORATIONInventors: Atsunori Okada, Tatsuya Fukunaga, Hideya Matsubara
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Publication number: 20100123528Abstract: A balanced-output triplexer includes: a first filter provided between an input terminal and a pair of first balanced output terminals; a second filter provided between the input terminal and a pair of second balanced output terminals; and a third filter provided between the input terminal and a pair of third balanced output terminals. Each of the first to third filters has a pair of output resonators that are interdigital-coupled to each other and connected to the corresponding pair of balanced output terminals.Type: ApplicationFiled: November 14, 2008Publication date: May 20, 2010Applicant: TDK CORPORATIONInventors: Atsunori Okada, Tatsuya Fukunaga, Hideya Matsubara, Steve Plager