With Impedance Matching Patents (Class 333/32)
  • Patent number: 11101533
    Abstract: A radio frequency (RF) device includes a chip comprising a plurality of vias and at least a hot via; a signal lead and a ground lead disposed under a back side of the chip; and a signal metal sheet, a first ground metal sheet and a second ground metal sheet disposed on a top side of the chip. The signal metal sheet crosses over the first gap formed between the signal lead and the ground lead. The first ground metal sheet and the second ground metal sheet are coupled to the ground lead through the plurality of vias. The first ground metal sheet and the second ground metal sheet substantially surround the signal metal sheet.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: August 24, 2021
    Assignee: WIN Semiconductors Corp.
    Inventors: Chih-Wen Huang, Jui-Chieh Chiu
  • Patent number: 10971458
    Abstract: Illustrative impedance matching circuits and methods provide enhanced performance without meaningfully increasing cost or areal requirements. One illustrative integrated circuit embodiment includes: a pin configured to connect to a substrate pad via a solder bump having a parasitic capacitance; an inductor that couples the pin to a transmit or receive circuit; a first electrostatic discharge (ESD) protection device electrically connected to a pin end of the inductor; and a second ESD protection device electrically connected to a circuit end of the inductor, where the first ESD protection device has a first capacitance that sums with the parasitic capacitance to equal a total capacitance coupled to the circuit end of the inductor.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: April 6, 2021
    Assignee: CREDO TECHNOLOGY GROUP LIMITED
    Inventor: Xike Liu
  • Patent number: 10958234
    Abstract: The present disclosure may include, for example, a tunable capacitor having a decoder for generating a plurality of control signals, and an array of tunable switched capacitors comprising a plurality of fixed capacitors coupled to a plurality of switches. The plurality of switches can be controlled by the plurality of control signals to manage a tunable range of reactance of the array of tunable switched capacitors. Additionally, the array of tunable switched capacitors is adapted to have non-uniform quality (Q) factors. Additional embodiments are disclosed.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: March 23, 2021
    Assignee: NXP USA, Inc.
    Inventors: Keith Manssen, Matthew Russell Greene
  • Patent number: 10951190
    Abstract: Systems and methods are disclosed for on-chip harmonic filtering for radio frequency (RF) communications. A filtering and matching circuit for an integrated circuit includes a first capacitance coupled in parallel with a first inductance, a second inductance coupled to the first inductance, and a variable second capacitance coupled between the first and second inductance. The variable second capacitance is controlled to provide filtering with respect to the RF signal as well as impedance matching with respect to a load coupled to the connection pad. For one embodiment, the variable second capacitance includes a coarse-tune variable capacitor circuit and a fine-tune variable capacitor circuit. The coarse-tuning controls impedance matching, and the fine tuning controls a notch for the filtering. The load can be an antenna for the RF communications. The integrated circuit can include a receive path, a transmit path, or both.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: March 16, 2021
    Assignee: Silicon Laboratories Inc.
    Inventors: Essam S. Atalla, Ruifeng Sun, Mohamed M. Elkholy
  • Patent number: 10943770
    Abstract: Systems and methods for operating a match network are disclosed. A method includes obtaining at least one measurement-based-attribute at the first side of a match network and at least one measurement-based-attribute at a second side of the match network. A present reactance setting of the match network is obtained and a model of the match network is accessed that associates the at least one measurement-based-attribute at the first side of the match network with at least one expected-attribute at the second side of the match network based upon the present reactance setting of the match network. The at least one measurement-based-attribute at the second side of the match network is contrasted with the at least one expected-output-attribute to assess whether the match network is at least one of damaged or operating outside of specifications.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: March 9, 2021
    Assignee: ADVANCED ENERGY INDUSTRIES, INC.
    Inventors: Corneluis Erasmus van Greunen, Masahiro Watanabe
  • Patent number: 10930456
    Abstract: A microelectromechanical systems (MEMS) switch die having an N number of radio frequency (RF) MEMS switches, each having a anchored beam with a switch contact, a gate, and a terminal contact is disclosed. Also included is a MEMS-based decoder having logic gates comprised of logic MEMS switches that are configured to decode the coded signals to determine which of the N number of RF MEMS switches to open and close, apply a higher level gate voltage to each gate of the RF MEMS switches determined to be closed, wherein the higher gate voltage electrostatically pulls the anchored beam and brings the switch contact into electrical contact with the terminal contact, and apply a lower gate voltage to each gate of the RF MEMS switches to be opened, wherein the lower gate voltage releases the anchored beam and allows the switch contact to break electrical contact with the terminal contact.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: February 23, 2021
    Assignee: Qorvo US, Inc.
    Inventors: Nadim Khlat, Marcus Granger-Jones
  • Patent number: 10879942
    Abstract: A demultiplexing apparatus according to the present disclosure includes an amplifier that amplifies transmission signals in three or more communication bands having different frequency bands; multiple signal paths which are commonly provided for an output terminal of the amplifier and on which the signals in the corresponding communication bands are propagated; and multiple transmission-reception filters which are provided on the multiple signal paths, and each of which isolates a transmission signal and a reception signal of the corresponding communication band from each other. The gains of the amplifier in the frequency bands of multiple reception signals are smaller than the gains of the amplifier in the frequency bands of multiple transmission signals.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: December 29, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Isao Takenaka
  • Patent number: 10854981
    Abstract: A communication apparatus includes a signal line that connects an antenna and a wireless communication module to each other, the signal line having a portion where the signal line is divided in part into sections, with an adjacent portion adjacent to the divided portion of the signal line being greater in line width than a main body portion of the signal line; a first ground pattern disposed to face the main body portion; and a second ground pattern disposed to face the adjacent portion. The distance from the adjacent portion to the second ground pattern is longer than the distance from the main body portion to the first ground pattern. The antenna and the wireless communication module are connected to each other through the signal line and a solder adhered to the adjacent portion.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: December 1, 2020
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Masayuki Pak, Tetsufumi Nozawa
  • Patent number: 10840869
    Abstract: A digital microphone compresses a large voltage swing signal from a MEMS capacitor to a signal suitable for processing by integrated circuitry. The compression may be performed in an analog domain by selectively coupling adjustment capacitors in parallel to the MEMS capacitor. The digital microphone may decompress the signal in the digital domain using a decompression technique substantially an inverse of the compression performed in the analog domain.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: November 17, 2020
    Assignee: Chaoyang Semiconductor Jiangyin Technology Co., Ltd.
    Inventor: Hassan Ihs
  • Patent number: 10784044
    Abstract: In accordance with embodiments of the present invention, a coil design for the transmission of wireless power. In some embodiments, the coil can include a winding with one or more turns of conductive traces mounted on a substrate, wherein the one or more turns include characteristics that enhance operation of the coil. In some embodiments, the winding includes a transmit coil and a receive coil, each coupled to terminals that provide for a transmit functionality and a receive functionality. In some embodiments, the traces are varied in width and/or thickness in order to optimize the inductance and the coil resistance. In some embodiments, parameters of a control circuit coupled to the coil to affect a transmit functionality or a receive functionality can be optimized.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: September 22, 2020
    Assignee: Integrated Device Technology, Inc.
    Inventors: Tao Qi, Gustavo Mehas, Chan Young Jeong, Xinyun Gu, Nicholaus Wayne Smith, Amit D. Bavisi, Daryl Jay Sugasawara, Aihua Lee, Tianze Kan
  • Patent number: 10778315
    Abstract: A terminal device, infrastructure equipment, methods and integrated circuitry for use with a wireless telecommunications network. The terminal device comprises a receiver configured to receive a first signal, the first signal being transmitted using a first number of antenna ports and encoded according to the first number of antenna ports, the first number of antenna ports being predetermined, and to receive a second signal, the second signal being transmitted using a second number of antenna ports and encoded according to the second number of antenna ports, the second number of antenna ports being indicated by the first signal. The terminal device also comprises a controller that configures the receiver to decode the first signal using the predetermined first number of antenna ports, and decode the second signal using the second number of antenna ports indicated by the first signal.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 15, 2020
    Assignee: SONY CORPORATION
    Inventors: Shin Horng Wong, Martin Warwick Beale
  • Patent number: 10688309
    Abstract: An electrical system including a body having a structure resembling a double helix wound around a toroidal structure may be used to produce useful electromagnetic effects for various applications, including providing therapy and promoting growth of living organisms.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 23, 2020
    Assignee: Medical Energetics Limited
    Inventor: David G. Schmidt
  • Patent number: 10673513
    Abstract: A front end module (FEM) for a 5.2 GHz Wi-Fi acoustic wave resonator RF filter circuit. The device can include a power amplifier (PA), a 5.2 GHz resonator, and a diversity switch. The device can further include a low noise amplifier (LNA). The PA is electrically coupled to an input node and can be configured to a DC power detector or an RF power detector. The resonator can be configured between the PA and the diversity switch, or between the diversity switch and an antenna. The LNA may be configured to the diversity switch or be electrically isolated from the switch. Another 5.2 GHZ resonator may be configured between the diversity switch and the LNA. In a specific example, this device integrates a 5.2 GHz PA, a 5.2 GHZ bulk acoustic wave (BAW) RF filter, a single pole two throw (SP2T) switch, and a bypassable LNA into a single device.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: June 2, 2020
    Assignee: Akoustis, Inc.
    Inventors: Jeffrey B. Shealy, Rohan W. Houlden, Shawn R. Gibb, David M. Aichele
  • Patent number: 10658999
    Abstract: Systems and methods are disclosed for on-chip harmonic filtering for radio frequency (RF) communications. A filtering and matching circuit for an integrated circuit includes a first capacitance coupled in parallel with a first inductance, a second inductance coupled to the first inductance, and a variable second capacitance coupled between the first and second inductance. The variable second capacitance is controlled to provide filtering with respect to the RF signal as well as impedance matching with respect to a load coupled to the connection pad. For one embodiment, the variable second capacitance includes a coarse-tune variable capacitor circuit and a fine-tune variable capacitor circuit. The coarse-tuning controls impedance matching, and the fine tuning controls a notch for the filtering. The load can be an antenna for the RF communications. The integrated circuit can include a receive path, a transmit path, or both.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 19, 2020
    Assignee: Silicon Laboratories Inc.
    Inventors: Essam S. Atalla, Ruifeng Sun, Mohamed M. Elkholy
  • Patent number: 10637130
    Abstract: An antenna device includes an array antenna formed of five radiating elements arrayed on a dielectric substrate, and a feeder circuit that feeds a high frequency signal to the radiating elements making up the array antenna. The five radiating elements are arrayed on a first straight line drawn in a direction horizontal to the ground, and an excitation voltage of the radiating element positioned at the center of the array is set to be 2.2 times or more an average value of excitation voltages of the other radiating elements.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 28, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Shigeo Udagawa
  • Patent number: 10623048
    Abstract: A transceiver arrangement comprises a receiver arranged for frequency-division duplex communication; a transmitter arranged for frequency-division duplex communication; a transmission port for connecting to an antenna; a balancing impedance circuit arranged to provide an impedance arranged to mimic the impedance at the transmission port; and a filtering arrangement, which comprises filters of a first type and filters of a second type, connecting the receiver, transmitter, transmission port and balancing impedance circuit. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency and are connected between the transmitter and the transmission port and between the receiver and the balancing impedance circuit.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 14, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Imad ud Din, Stefan Andersson, Chunyun Jian
  • Patent number: 10615769
    Abstract: The present disclosure may include, for example, a tunable capacitor having a decoder for generating a plurality of control signals, and an array of tunable switched capacitors comprising a plurality of fixed capacitors coupled to a plurality of switches. The plurality of switches can be controlled by the plurality of control signals to manage a tunable range of reactance of the array of tunable switched capacitors. Additionally, the array of tunable switched capacitors is adapted to have non-uniform quality (Q) factors. Additional embodiments are disclosed.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: April 7, 2020
    Assignee: BlackBerry Limited
    Inventors: Keith Manssen, Matthew Russell Greene
  • Patent number: 10530321
    Abstract: Reflectionless electronic filters, as well as a method for designing such filters is disclosed, along with a method of realizing critical subcircuits within those filters that mimic the behavior of tee- and pi-networks having negative elements, though the critical subcircuits themselves are entirely passive. This allows a much broader range of transmission responses to be realized in reflectionless form than in the prior art, and especially with lower ripple factor for deeper rejection in equal-ripple Chebyshev responses. Reflectionless filters preferably function by absorbing the stop-band portion of the spectrum rather than reflecting it back to the source, which has significant advantages in many different applications.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: January 7, 2020
    Assignee: Associated Universities, Inc.
    Inventor: Matthew A. Morgan
  • Patent number: 10516378
    Abstract: Reflectionless low-pass, high-pass, band-pass, band-stop, all-pass, all-stop, and multi-band filters, as well as a method for designing such filters is disclosed, along with a method of enhancing the performance of such filters through the use of unmatched sub-networks to realize an optimal frequency response, such as the Chebyshev equal-ripple response. These filters preferably function by absorbing the stop-band portion of the spectrum rather than reflecting it back to the source, which has significant advantages in many different applications. The unmatched sub-networks preferably offer additional degrees of freedom by which element values can be assigned to realize improved cutoff sharpness, stop-band rejection, or other measures of performance.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 24, 2019
    Assignee: Associated Universities, Inc.
    Inventor: Matthew A. Morgan
  • Patent number: 10505263
    Abstract: One embodiment provides an electronic device, comprising: an antenna structure comprising an antenna body and an antenna tuning circuit; an RF circuit coupled to the antenna structure via a first capacitor to transmit an RF signal through the antenna structure; a Specific Absorption Ratio (SAR) sensor coupled to the antenna structure via a first inductor to detect, through the antenna structure, a change of capacitance within a target range, wherein a second capacitor in the antenna tuning circuit is located within the target range; and a control circuit for outputting a control signal to the antenna tuning circuit to adjust the second capacitor in the antenna tuning circuit to match RF signals having different frequencies; wherein a power supply terminal of the control circuit is coupled to a constant voltage power source. Other aspects are described and claimed.
    Type: Grant
    Filed: March 25, 2017
    Date of Patent: December 10, 2019
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventor: Yan Xia
  • Patent number: 10505766
    Abstract: The present invention is directed to communication systems and electrical circuits. According to an embodiment, an input termination circuit includes a first attenuation resistor and a second attenuation resistor. The resistance values of these two resistors are adjusted in opposite directions to maintain a stable output impedance. There are other embodiments as well.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: December 10, 2019
    Assignee: INPHI CORPORATION
    Inventors: Simon Forey, Rajasekhar Nagulapalli, Parmanand Mishra
  • Patent number: 10476163
    Abstract: Disclosed are ultra-small, planar antennas. The antennas include a circuit board having a first side and a second side and an off-center connector aperture and connector pad; a connector perpendicularly engaging the off-center connector aperture and connector pad of the circuit board; and a radiating element positioned adjacent the off-center connector aperture on a surface of circuit board having a perpendicular connection in plane to the off-center connector pad wherein the radiating element is not positioned below the connector. The ultra-compact, meander line, planar antenna, such as a planar inverted F antenna (PIFA), can be incorporated into wireless networking devices operating in the 2.4 GHz WiFi band. The combination of meander line and antenna elements yield improved performance operating in either free space or connected to a ground plane. Its compact design makes it ideal for WiFi, ZigBee, Bluetooth, and 802.11a/b/g/n/ac applications.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: November 12, 2019
    Assignee: TAOGLAS GROUP HOLDINGS LIMITED
    Inventor: Ming Wei Chen
  • Patent number: 10453810
    Abstract: The present disclosure relates to a radio frequency (RF) power transistor package. It further relates to a mobile telecommunications base station comprising such an RF power transistor package, and to an integrated passive die suitable for use in an RF power amplifier package. In example embodiments, an in-package impedance network is used that is connected to an output of the RF power transistor arranged inside the package. This network comprises a first inductive element having a first and second terminal, the first terminal being electrically connected to the output of the RF transistor, a resonance unit electrically connected to the second terminal of the first inductive element, and a second capacitive element electrically connected in between the resonance unit and ground, where the first capacitive element is arranged in series with the second capacitive element.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 22, 2019
    Assignee: Ampleon Netherlands B.V.
    Inventors: Johannes Adrianus Maria De Boet, Freerk Van Rijs, Iordan Konstantinov Sveshtarov
  • Patent number: 10429484
    Abstract: A compact harmonic tuner system uses a two-carriage harmonic slide-screw impedance tuner employs, single and dual frequency band metallic disc probes travelling along and rotating diametrically inside the same slabline, which therefore is only one half, instead of full, the wavelength long at the minimum frequency of operation. Using disc probes allows probe control operation without high precision vertical axes, as well as high resolution in the area where the gap between center conductor and probe is small (high GAMMA), a smooth increase of proximity between probe and center conductor and the possibility to compensate for the negative phase slope at higher GAMMA, native to traditional slide screw tuners using vertically moving square probes (slugs).
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: October 1, 2019
    Inventor: Christos Tsironis
  • Patent number: 10432164
    Abstract: A matching circuit in a communication apparatus may comprise a first inductor disposed at a primary side of a transformer; a second inductor disposed at a secondary side of the transformer; and an impedance element connected to the first inductor and the second inductor. Also, a first terminal of the first inductor may be connected to an input terminal of the transformer, a second terminal of the first inductor may be connected to a common node connected to a ground, a first terminal of the second inductor may be connected to an output terminal of the transformer, a second terminal of the second inductor may be connected to the common node, a first terminal of the impedance element may be connected to the common node, and a second terminal of the impedance element may be connected to the ground.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: October 1, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun Woo Kong, Cheol Ho Kim, Bong Hyuk Park, Hui Dong Lee
  • Patent number: 10389162
    Abstract: Techniques for reducing reflected reactance in a wireless power transfer system are provided. An example apparatus includes a resonant network including a variable reactance element, such that the resonant network is configured to resonant when the variable reactance element is at a resonant reactance value, a control circuit operably coupled to the variable reactance element and configured to determine a first reactance value and a second reactance value, such that an output of the PRU is the desired output when the variable reactance element is either the first reactance value or the second reactance value, and the first reactance value is below the resonant reactance value and the second reactance value is above the resonant reactance value, determine an indication of a source reactance associated with a wireless power source, and adjust the variable reactance element to either the first reactance value or the second reactance value based on the indication of the source reactance.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 20, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Paolo Menegoli, Mark White, II
  • Patent number: 10348267
    Abstract: An impedance matching device comprising a variable reactor having a main winding and control winding, wherein a generated magnet field in the core is an AC magnetic field with a magnitude exceeding a value to settle a deviation between a control target value for impedance matching and a feedback value, by changing the magnitude of the generated magnetic field by changing a control current passing through the control winding, thereby controlling inductance of the variable rector to be a predetermined value to perform impedance matching, the response delay in the impedance matching is reduced by reducing a response delay in the inductance variation of the variable reactor.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: July 9, 2019
    Assignee: KYOSAN ELECTRIC MFG. CO., LTD.
    Inventors: Itsuo Yuzurihara, Satoshi Aikawa, Sadao Mori, Tadaharu Ohno
  • Patent number: 10348273
    Abstract: A hybrid digital electronic tuner (HDET) uses a modified forward signal power injection technique, a variance of a prior art Gamma Boosting Unit (GBU) technique, cascaded with a digital, PIN diode based, electronic tuner, all integrated in the same low loss parallel plate airline (slabline) to create a compact hybrid tuner unit able of generating thousands of high reflection factors (|Gamma|?1) at millisecond tuning speed.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: July 9, 2019
    Inventor: Christos Tsironis
  • Patent number: 10290428
    Abstract: A high power low frequency tuner uses motor controlled rotary capacitors submerged in low loss high epsilon dielectric fluid and lengths of semi-rigid RF cable interconnecting the floating static blocks of the capacitors, the rotating blocks being grounded. And tuner calibration and tuning methods, allowing accurate tuning and perfect Smith chart impedance coverage. The full calibration lasts several hours and is reduced by the “de-embedded” calibration algorithm to minutes. A maximum power embodiment comprises full immersion of capacitors and interconnecting cables in circulated dielectric liquid (mineral oil) for breakdown voltage increase and heat removal.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: May 14, 2019
    Inventor: Christos Tsironis
  • Patent number: 10284394
    Abstract: The present invention is directed to communication systems and electrical circuits. According to an embodiment, an input termination circuit includes a first attenuation resistor and a second attenuation resistor. The resistance values of these two resistors are adjusted in opposite directions to maintain a stable output impedance. There are other embodiments as well.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: May 7, 2019
    Assignee: INPHI CORPORATION
    Inventors: Simon Forey, Rajasekhar Nagulapalli, Parmanand Mishra
  • Patent number: 10284165
    Abstract: A variable phase shift circuit has a phase shifter including a first port and a second port; a through path including a first port and a second port; a first switch including a first common port and configured to select the first port of the phase shifter or the first port of the through path and to connect the first port or the first port to the first common port; and a second switch including a second common port and configured to select the second port of the phase shifter or the second port of the through path and to connect the second port or the second port to the second common port. Phase shift amounts between the first common port and the second common port are switched in accordance with selections made by the first switch and the second switch.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 7, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kengo Onaka, Katsuhito Kuroda, Yoshiki Yamada
  • Patent number: 10277192
    Abstract: A phase shifter includes a transformer including a first coil, a second coil that is magnetically coupled to the first coil, and a parasitic inductance component, and an impedance adjustment circuit including a reactance element connected to the transformer. The impedance adjustment circuit includes an input/output capacitor connected between a first port and a second port of the transformer, and the input/output capacitor is defined by an inter-coil capacitance generated between the first coil and the second coil and an input/output additional capacitor connected between the first port and the second port.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: April 30, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kenichi Ishizuka
  • Patent number: 10270245
    Abstract: An integrated circuit device comprises at least one non-linear circuit. Further the integrated circuit device comprises a plurality of terminal circuits coupled to the non-linear circuit. Each terminal circuit comprises an associated terminal and an inductor coupled to the associated terminal and to the at least one non-linear circuit. A protective device for protection of a circuit, comprises an electro-static discharge protection element configured to be coupled to a circuit terminal and an inductor coupled to the electro-static discharge protection element and configured to be coupled to the circuit. The inductor has a low quality factor.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: April 23, 2019
    Assignee: Infineon Technologies AG
    Inventors: Werner Simbuerger, Winfried Bakalski, Georg Lischka, Andreas Wiesbauer
  • Patent number: 10268789
    Abstract: A packaged transistor amplifier includes a package having an input lead and an output lead; a transistor stage having a plurality of unit cell transistors that are electrically coupled to the input lead in parallel, each of the unit cell transistors having an output; a first output bond pad that is coupled to a first subset of the outputs of the unit cell transistors by a first feed network; a second output bond pad that is separate from the first output bond pad, the second output bond pad coupled to a second subset of the outputs of the unit cell transistors by a second feed network; a first output bond wire coupled between the first output bond pad and the output lead; and a second output bond wire coupled between the second output bond pad and the output lead. Related design methods are also provided.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 23, 2019
    Assignee: Cree, Inc.
    Inventors: Mitch Flowers, Ulf Andre, Khaled Fayed, Simon Wood
  • Patent number: 10263595
    Abstract: The present disclosure may include, for example, a tunable capacitor having a decoder for generating a plurality of control signals, and an array of tunable switched capacitors comprising a plurality of fixed capacitors coupled to a plurality of switches. The plurality of switches can be controlled by the plurality of control signals to manage a tunable range of reactance of the array of tunable switched capacitors. Additionally, the array of tunable switched capacitors is adapted to have non-uniform quality (Q) factors. Additional embodiments are disclosed.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: April 16, 2019
    Assignee: BLACKBERRY LIMITED
    Inventors: Keith Manssen, Matthew Russell Greene
  • Patent number: 10250216
    Abstract: Multistage matching networks and analytical frameworks for improving and/or optimizing the networks is provided. In one example, a framework relaxes the resistive constraint on the input and load impedances of the stages of a multistage matching network and allows them to be complex. Based on this framework, the design of multistage matching networks can be improved or optimized, such as using a method of Lagrange multipliers. A design optimization approach, for example, can be used to predict an optimum distribution of gains and impedance characteristics among the stages of a multistage matching network. The efficiency of matching networks designed using this example approach is compared with a conventional design approach, and it is shown that significant efficiency improvements are possible.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 2, 2019
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Ashish Kumar, Sreyam Sinha, Khurram K. Afridi
  • Patent number: 10242960
    Abstract: The present disclosure relates to a radio frequency (RF) power transistor package. It further relates to a mobile telecommunications base station comprising such an RF power transistor package, and to an integrated passive die suitable for use in an RF power amplifier package. In example embodiments, an in-package impedance network is used that is connected to an output of the RF power transistor arranged inside the package. This network comprises a first inductive element having a first and second terminal, the first terminal being electrically connected to the output of the RF transistor, a resonance unit electrically connected to the second terminal of the first inductive element, and a second capacitive element electrically connected in between the resonance unit and ground, where the first capacitive element is arranged in series with the second capacitive element.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: March 26, 2019
    Assignee: Ampleon Netherlands B.V.
    Inventors: Johannes Adrianus Maria De Boet, Freerk Van Rijs, Iordan Konstantinov Sveshtarov
  • Patent number: 10212748
    Abstract: This relates to wireless communication on-board aircraft. More particularly, the present disclosure relates to a method for controlling an on-board aircraft network cell to be used in an on-board aircraft wireless communication network, to such an on-board aircraft network cell configured to be used in an on-board aircraft wireless communication network, to an on-board aircraft wireless communication network comprising at least one such on-board aircraft network cell, and to an aircraft comprising such on-board aircraft wireless communication network. An embodiment of the on-board aircraft network cell comprises at least one Wireless Module unit, at least two Wireless Data Concentrator units, and at least two independent wireless links, each wireless link being established between the at least one Wireless Module unit and one of the at least two Wireless Data Concentrator units.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: February 19, 2019
    Assignee: AIRBUS OPERATIONS GMBH
    Inventors: Jan Mueller, Thomas Meyerhoff
  • Patent number: 10141655
    Abstract: A multiport RF switch assembly with integrated impedance tuning capability is described that provides a single RFIC solution to switch between transmit and receive paths in a communication system. Dynamic tuning is integrated into each switch sub-assembly to provide the capability to impedance match antennas or other components connected to the multiport switch. The tuning function at the switch can be used to shape the antenna response to provide better filtering at the switch/RF front-end (RFFE) interface to allow for reduced filtering requirements in the RFFE. Memory is designed into the multiport switch assembly, allowing for a look-up table or other data to reside with the switch and tuning circuit. The resident memory will result in easier integration of the tunable switch assembly into communication systems.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: November 27, 2018
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Olivier Pajona
  • Patent number: 10110196
    Abstract: An electronic component includes a multilayer body, a filter provided at the multilayer body, an input/output terminal provided at the multilayer body, and an impedance-matching loop via inductor at the multilayer body and connected between the filter and the input/output terminal, and including an impedance-matching inductor conductor layer, and first and second impedance-matching via hole conductors extending from the impedance-matching inductor conductor layer in a laminate direction. A capacitor including at least two conductor layers respectively connected with the first and second impedance-matching via hole conductors may not be provided.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 23, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yusuke Mukai
  • Patent number: 10097165
    Abstract: Compact, high Gamma, wideband, multi-carriage-multi-harmonic tuners use a meandering slabline structure and multiple probes and carriages. The meandering structure reduces the overall tuner length by more than half at 0.4 GHz. The required slabline bends are made using a vertical-to-horizontal slabline transition. Multiple probes are employed within the slabline segment closest to the test port, in order to minimize the insertion loss at higher frequencies, caused by the slabline bends. This tuner structure is mostly effective starting at fundamental frequencies below 1 GHz and operating at fundamental or harmonic frequencies as high as 18 GHz.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: October 9, 2018
    Inventor: Christos Tsironis
  • Patent number: 10084424
    Abstract: A device and associated method for adjusting electrical impedance based on contact action are disclosed. The device includes a drive unit (1), a contact unit (2), a monitoring unit (3), and a control unit (4). The monitoring unit (3) measures an impedance signal of an electromagnetic functional material (7) in an alternating-current circuit, and transfers the impedance signal to the control unit (4). In response to the impedance signal measured by the monitoring unit (3), the control unit (4) controls the drive unit (1) to apply a mechanical load on the contact unit (2), which causes the contact unit (2) to contact the electromagnetic functional material (7). The value of a contact load is adjusted, so as to adjust the electrical impedance of the electromagnetic functional material (7), thereby achieving the objective of adjusting the impedance matching in the alternating-current circuit in real time.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: September 25, 2018
    Assignees: Peking University, Jilin University
    Inventors: Daining Fang, Hao Zhou, Yongmao Pei, Faxin Li, Hongwei Zhao, Ji Fu
  • Patent number: 10079586
    Abstract: A package for a tunable filter is disclosed. In an embodiment, the tunable filter includes a substrate having a first interconnection plane and a semiconductor device assembled on the substrate in a first component plane, the semiconductor device electrically connected to the first interconnection plane and containing tunable passive components. The filter further includes a control unit arranged in the first component plane, a dielectric layer arranged above the first component plane, a second component plane arranged on the dielectric layer and discrete passive devices arranged in the second component plane and interconnected with the semiconductor device, wherein the tunable passive components are tunable by the control unit.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: September 18, 2018
    Assignee: SnapTrack, Inc.
    Inventors: Juha Ellä, Edgar Schmidhammer, Christian Block
  • Patent number: 10069469
    Abstract: A circuit includes a first transistor comprising a gate, a source, and a drain, and an inductor coupled between the gate and the source of the first transistor, wherein the source is further coupled to a current source and the gate is further coupled to an amplifier.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: September 4, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Woonyun Kim, Chang-Ho Lee, Minsik Ahn, Jeongwon Cha
  • Patent number: 10020595
    Abstract: A circuit for generating a negative group delay (NGD). The circuit comprises one or more electrical components, at least one of which has an input impedance that is sufficient for the electrical component(s) to generate an NGD. In an embodiment, the circuit comprises antenna that is configured to radiate an electrical signal delivered thereto and generate an NGD. The antenna has an input impedance sufficient for the antenna to generate the NGD. In another embodiment, the circuit comprises an amplifier that is configured to amplify an electrical signal delivered thereto and generate an NGD. In such an instance, the amplifier has an input impedance and either the amplifier or one or more matching circuits thereof has a quality factor sufficient to generate the NGD.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: July 10, 2018
    Assignee: The Regents of the University of Michigan
    Inventors: Amir Mortazawi, Waleed Alomar
  • Patent number: 10003311
    Abstract: An amplifier circuit includes an RF input port, an RF output port, a reference potential port, and an RF amplifier having an input terminal and a first output terminal. An output impedance matching network electrically couples the first output terminal to the RF output port. A first inductor is electrically connected in series between the first output terminal and the RF output port, a first LC resonator is directly electrically connected between the first output terminal and the reference potential port, and a second LC resonator is directly electrically connected between the first output terminal and the reference potential port. The first LC resonator is configured to compensate for an output capacitance of the RF amplifier at a center frequency of the RF signal. The second LC resonator is configured to compensate for a second order harmonic of the RF signal.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 19, 2018
    Assignee: Infineon Technologies AG
    Inventors: Timothy Canning, Richard Wilson, Haedong Jang, David Seebacher, Christian Schuberth, Rongguo Zhou, Bayaner Arigong
  • Patent number: 9998073
    Abstract: A voltage controlled oscillator comprises a negative resistance, a first inductor, a fixed capacitor, and a frequency control component. The frequency control component comprises at least one varactor and at least a second inductor connected in series with the at least one varactor. A magnitude of an inductance of the second inductor is selected such that the frequency control component has an effective capacitance range larger than a capacitance range of the at least one varactor.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: June 12, 2018
    Assignee: International Business Machines Corporation
    Inventors: Mark A. Ferriss, Daniel J. Friedman, Bodhisatwa Sadhu, Alberto Valdes-Garcia
  • Patent number: 9975503
    Abstract: A communication bus (B1, B2, Bp) in a motor vehicle (110) transfers electrical signals between the nodes (N1, N2, N3, Nn, N21, N2m, Np1, Npr) included in the motor vehicle. The communication bus comprises two unshielded signal lines (S1, S2) and a decoupling line (D), which are configured so as to divert undesired electromagnetic radiation deriving both from external systems that are not connected to the communication bus (B1, B2, Bp) and the electrical signals transferred via the unshielded signal lines (S1, S2). The decoupling line (D) is connected for alternating current to a ground potential in one and only one (N3) of the nodes (N1, N2, N3, Nn, N21, N2m, Np1, Npr) included in the communication system.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 22, 2018
    Assignee: SCANIA CV AB
    Inventors: Sune Gustafsson, Jörgen Sundberg, Thomas Lundqvist
  • Patent number: 9966998
    Abstract: A wireless power transmitter for transmitting power to a wireless power receiver in a wireless scheme includes a transmitting coil configured to transmit power, which is supplied by a power source, to a receiving coil of the wireless power receiver using resonance; and a detecting unit configured to detect a coupling state between the transmitting coil and the receiving coil using an input impedance of the wireless power transmitter.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 8, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Su Ho Bae
  • Patent number: 9960628
    Abstract: Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably of a single layer construction having a plurality of inductor coils positioned on respective opposing substrate sides that are electrically connected. The antenna is also constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: May 1, 2018
    Assignee: NuCurrent, Inc.
    Inventors: Alberto Peralta, Vinit Singh, Ajit Rajagopalan, Jason Luzinski, Jacob Babcock, Christine A. Frysz