Single Antenna Switched Between Transmitter And Receiver Patents (Class 455/83)
  • Patent number: 11374610
    Abstract: A Radio Frequency (RF) circuit including a receive path, a transmit path, a switching circuit, and an output configured to receive RF signals from an antenna in a receive mode of operation, and to provide RF signals to the antenna in a transmit mode of operation. The receive path is configured to be coupled between a low-noise amplifier and the output. The switching circuit is located in the receive path and is configured, in the receive mode, to selectively couple the low-noise amplifier to the output and to pass the received RF signals from the output to the low-noise amplifier. The transmit path is configured to be coupled between a power amplifier and the output, to provide, in the transmit mode, signals from the power amplifier to the output, bypassing the switching circuit, and to have, in receive mode of operation, an off-state impedance of at least 200+j*13 Ohm.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: June 28, 2022
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Foad Arfaei Malekzadeh, Sanjeev Jain, Stephen Joseph Kovacic
  • Patent number: 11368180
    Abstract: A switch circuit includes first and second transistor stacks coupled in parallel between first and second ports. The first transistor stack includes a first plurality of transistors coupled in series between the first and second ports to provide a first variably-conductive path between the first and second ports. Each transistor of the first plurality of transistors has a gate terminal coupled to a first control terminal. The second transistor stack includes a second plurality of transistors coupled in series between the first and second ports to provide a second variably-conductive path between the first and second ports. Each transistor of the second plurality of transistors has a gate terminal coupled to a second control terminal. When implemented in a transceiver, first and second drivers are configured to simultaneously configure the first and second variably-conductive paths in a low-impedance state.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: June 21, 2022
    Assignee: NXP USA, Inc.
    Inventor: Venkata Naga Koushik Malladi
  • Patent number: 11349448
    Abstract: Systems and methods are disclosed for on-chip harmonic filtering for radio frequency (RF) communications. For disclosed embodiments, a filter circuit is coupled between a first internal node and a connection pad for an integrated circuit. The filter circuit includes a first inductance, a variable capacitance, and a second inductance. The capacitance amount for the variable capacitance is controlled to tune filtering for the filter circuit to a harmonic of a frequency for a transmit output signal. A power amplifier outputs the transmit output signal to the connection pad without passing through the filter circuit. The filter circuit filters the harmonic of the frequency for the transmit output signal, shunting harmonic current to ground. For one embodiment, the filtered harmonic is a third harmonic of the transmit frequency. For one embodiment, the transmit output signal has an output power greater than or equal to 15 dBm.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: May 31, 2022
    Assignee: Silicon Laboratories Inc.
    Inventors: Ruifeng Sun, Francesco Barale, Vinod Jayakumar, Sherry Xiaohong Wu, Mustafa H. Koroglu, Essam S. Atalla
  • Patent number: 11349505
    Abstract: A wireless communication device includes a first transceiver operable according to a first radio technology and a second transceiver operable according to a second radio technology and operable concurrently with the first transceiver. The wireless communication device further includes an antenna configured to transmit radio transmissions of the second transceiver, and a filter circuit coupling the second transceiver with the antenna. The filter circuit includes a first frequency path and a second frequency path in parallel. The first frequency path passes a first set of frequencies of the radio transmissions and the second frequency path passes a second set of frequencies of the radio transmissions. One of the first frequency path or the second frequency path is configured to filter the radio transmissions of the second transceiver to remove signals corresponding to the one or more operating frequencies of the first transceiver from the radio transmissions of the second transceiver.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: May 31, 2022
    Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
    Inventors: James Thomas Kenning, Jun Xu, Steven Seung Chul Lee
  • Patent number: 11343060
    Abstract: An intelligent backhaul radio is disclosed, which can operate by zero division duplexing for use in PTP or PMP topologies, providing for significant spectrum usage benefits among other benefits. Specific system architectures and structures to enable active cancellation of multiple transmit signals at multiple receivers within a MIMO radio are disclosed. Further disclosed aspects include the adaptive optimization of cancellation parameters or coefficients.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: May 24, 2022
    Assignee: SKYLINE PARTNERS TECHNOLOGY LLC
    Inventors: Kevin J. Negus, James A. Proctor, Jr.
  • Patent number: 11327517
    Abstract: Circuits and devices related to switch controller. In some embodiments, a radio-frequency module can include a packaging substrate configured to receive a plurality of components, and a switching circuit implemented on the packaging substrate. The radio-frequency module can further include a control circuit configured to control operation of the switching circuit. The control circuit can include a regulator configured to generate a plurality of reference voltage levels for the operation of the switching circuit, or to be in a sleep mode, based on a control signal received through a common input node. The control circuit can further include a mode detector in communication with the regulator and configured to provide a first form of the control signal to the common input node to allow the plurality of reference levels to be generated by the regulator, or a second form of the control signal to the common input node to put the regulator in the sleep mode.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: May 10, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventors: Bang Li Liang, Peter Harris Robert Popplewell, Gregory Edward Babcock
  • Patent number: 11316499
    Abstract: A filter device includes: a common terminal; a first input/output terminal; a second input/output terminal; a first filter connected to a first path that connects the common terminal and the first input/output terminal, and having a passband that is a first band; a second filter connected to a second path that connects the common terminal and the second input/output terminal, and having a passband that is a second band having a frequency range that is different from and does not overlap a frequency range of the first band; a first switch element connected between a first node on the first path between the first filter and the first input/output terminal and a second node on the second path between the second filter and the second input/output terminal; and a second switch element on the second path, which is connected between the second node and the second input/output terminal.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: April 26, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Nosaka
  • Patent number: 11309860
    Abstract: Embodiments presented herein relate to isolating a receiver circuit of an electronic device from a transmission signal and from a noise signal at a frequency range of a received signal. To do so, an isolation circuit is disposed between the receiver circuit and a transmission circuit. The isolation circuit may include multiple variable impedance devices and one or more antennas. The impedances of the variable impedance devices and the one or more antennas may be balanced such that the receiver circuit is effectively removed from the transceiver circuitry and isolated from the transmission signal. The impedance of the variable impedance devices and the one or more antennas may also be configured to isolate the receiver circuit from a noise signal generated at the transmission circuit having a frequency in the range of the receive signal.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: April 19, 2022
    Assignee: Apple Inc.
    Inventors: Oliver Georg Dorn, Joonhoi Hur, Rastislav Vazny
  • Patent number: 11265039
    Abstract: The apparatus includes a first transistor having a gate/base terminal to receive a first drive control signal used for controlling a driver stage of the transceiver and a drain/collector terminal coupled to a control terminal of a switch of the transceiver. The first transistor is switched on when the first drive control signal is at a first level that enables the driver stage to amplify a first RF signal. When the first transistor is switched on, the drain/collector terminal of the first transistor outputs to a control terminal of the switch a switch control signal at a second level that enables the switch to provide a portion of the RF signal reflected by the antenna to the load.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: March 1, 2022
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Lihuan Chen, Sumin Yuan, Jun Ji
  • Patent number: 11177837
    Abstract: A duplexer may be used to isolate a transmitter and a receiver that share a common antenna. By using impedance gradients to provide impedances that cause balance-unbalance transformers (balun) of the duplexer to cut-off access to the common antenna rather than duplicate the antenna impedance, the duplexer is balanced. Such cut-offs may have a lower insertion loss than a duplexer that merely duplicates the antenna impedance to separate the differential signals of the receiver and transmitter from the common mode signal.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: November 16, 2021
    Assignee: Apple Inc.
    Inventors: Joonhoi Hur, Rastislav Vazny
  • Patent number: 11146305
    Abstract: A radio frequency module includes: a switch circuit including a transmit terminal, a receive terminal, a selection terminal, and a common terminal, the switch circuit being capable of switching between (A) a connection between the transmit terminal and the common terminal, (B) connections between the transmit terminal and the common terminal and between the selection terminal and the common terminal, (C) connections between the receive terminal and the common terminal and between the selection terminal and the common terminal, and (D) a connection between the receive terminal and the common terminal; a transmit/receive filter connected to the common terminal and to be used for a time division duplex system, a pass band of the transmit/receive filter being a transmit/receive band of Communication Band A; and a DTC connected to the selection terminal, the DTC changing its capacitance value according to connection switching of the switch circuit.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: October 12, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Sho Matsumoto
  • Patent number: 11123559
    Abstract: A BTE prosthetic device for use in a medical system or prosthesis comprises a connector configured to mechanically attach an auxiliary device of the system to the BTE prosthetic device. The connector is electrically connected to a transceiver of the BTE prosthetic device. The connector operates as an electromagnetic antenna for transmitting and/or receiving signals between the BTE prosthetic and other components of the medical system.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 21, 2021
    Assignee: Cochlear Limited
    Inventors: Werner Meskens, Tadeusz Jurkiewicz, Steve Winnal, Limin Zhong
  • Patent number: 11128327
    Abstract: An apparatus includes a transceiver circuit, a series capacitor, and a shunt switch. The transceiver circuit may comprise a transmit chain including an output matching network and a receive chain including an input matching network. An output of the output matching network may be connected directly to an input/output of the transceiver circuit. The series capacitor may be connected between an input of the input matching network and the output of the output matching network. The shunt switch may be connected between the input of the input matching network and a circuit ground potential of the transceiver circuit.
    Type: Grant
    Filed: August 31, 2019
    Date of Patent: September 21, 2021
    Assignee: Integrated Device Technology, Inc.
    Inventors: Morteza Abbasi, Tumay Kanar, Naveen Krishna Yanduru
  • Patent number: 11121548
    Abstract: A multi-input voltage converter includes an output circuit, a first conversion circuit, and a second conversion circuit. The first conversion circuit includes a first voltage receiving module, a first transformer, a first switch. The second conversion circuit includes a second voltage receiving module, a second switch. When the second voltage receiving module receives the second input voltage, the second switch is turned on to operate, and the output circuit outputs the output voltage.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 14, 2021
    Assignee: PEGATRON CORPORATION
    Inventor: Hao-Ming Chen
  • Patent number: 11018714
    Abstract: A Radio Frequency (RF) circuit including a receive path, a transmit path, a switching circuit, and an output configured to receive RF signals from an antenna in a receive mode of operation, and to provide RF signals to the antenna in a transmit mode of operation. The receive path is configured to be coupled between a low-noise amplifier and the output. The switching circuit is located in the receive path and is configured, in the receive mode, to selectively couple the low-noise amplifier to the output and to pass the received RF signals from the output to the low-noise amplifier. The transmit path is configured to be coupled between a power amplifier and the output, to provide, in the transmit mode, signals from the power amplifier to the output, bypassing the switching circuit, and to have, in receive mode of operation, an off-state impedance of at least 200+j*13 Ohm.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 25, 2021
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Foad Arfaei Malekzadeh, Sanjeev Jain, Stephen Joseph Kovacic
  • Patent number: 11005173
    Abstract: A transceiver device comprising transceiver circuitry (5) coupled to one or more antenna ports (2; 2?) by a balun arrangement (Lb, Lu; Lu?). For each of the antenna ports (2; 2?) an antenna switch (Ta; Ta?) is present having an antenna enabling input (4; 4?) and being arranged to connect an unbalanced coil (Lu; Lu?) from the balun arrangement (Lb, Lu; Lu?) to the antenna port (2; 2?) and a ground port (3). Also an electro-static discharge (ESD) protection circuit is provided with an ESD switch (Te; Te?) arranged to connect the antenna port (2; 2?) to the antenna enabling input (4; 4?) of the antenna switch (Ta; Ta?). The ESD switch (Te; Te?) has an ESD switch control input (A) connected to an ESD trigger arrangement (Rtrigger).
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: May 11, 2021
    Assignee: Qorvo International Pte. Ltd.
    Inventor: Hendrik Arend Visser
  • Patent number: 10979040
    Abstract: The present application provides a square wave generating method, applied in a square wave generating circuit, configured to generate a mimetic square wave signal, wherein the square wave generating circuit has a breakdown voltage. The square wave generating method comprises the square wave generating circuit generating the mimetic square wave signal as a first voltage during a first time interval; the square wave generating circuit generating the mimetic square wave signal as a second voltage during a second time interval; and the square wave generating circuit generating the mimetic square wave signal as a transient voltage during a transient interval between the first time interval and the second time interval, wherein the transient voltage is between the first voltage and the second voltage; wherein a first voltage difference between the first voltage and the second voltage is greater than the breakdown voltage.
    Type: Grant
    Filed: March 8, 2020
    Date of Patent: April 13, 2021
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Fu-Chiang Yang, Meng-Ta Yang
  • Patent number: 10938425
    Abstract: Examples provide a control circuit and a control apparatus, a radio frequency circuit and a radio frequency apparatus, a transceiver, a mobile terminal, methods and computer programs for determining calibration values for a radio frequency circuit. A control circuit (10) is configured to determine calibration values for a radio frequency circuit (100) with a transmit unit (102) coupled to an antenna (104) through an antenna tuner (106). The control circuit (10) is configured to determine the calibration values for the radio frequency circuit (100) based on at least two impedance measurements and based on at least two antenna tuner configurations.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: March 2, 2021
    Assignee: Intel IP Corporation
    Inventor: Grigory Itkin
  • Patent number: 10903836
    Abstract: A radio-frequency switch includes a first series switch including a plurality of series field-effect transistors (FETs) connected in series between a first terminal and a second terminal, a first shunt switch including a plurality of shunt FETs connected in series between the first terminal and a first ground terminal, and a first shunt gate resistor circuit including a plurality of gate resistors respectively connected to gates of the plurality of shunt FETs of the first shunt switch. Respective resistance values of the plurality of gate resistors of the first shunt gate resistor circuit successively increase in a direction away from the first ground terminal toward the first terminal.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: January 26, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byeong Hak Jo, Yoo Sam Na, Hyun Paek, Sol A Kim, Jeong Hoon Kim, Jong Mo Lim
  • Patent number: 10878207
    Abstract: A method includes providing a power supply package (PSP) that includes a power supply, an RFID tag, and a power switch, where a control terminal of the power switch is coupled to an output terminal of the RFID tag, and load path terminals of the power switch are coupled between an output terminal of the PSP and a first terminal of the power supply, where a control register of the RFID tag is pre-programmed with a first value such that the RFID tag is configured to generate a first control signal that turns off the power switch; receiving, by the RFID tag, a second value for the control register of the RFID tag; and writing, by the RFID tag, the second value to the control register of the RFID tag such that the RFID tag is configured to generate a second control signal that turns on the power switch.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 29, 2020
    Assignee: STMicroelectronics, Inc.
    Inventor: John N. Tran
  • Patent number: 10749501
    Abstract: An apparatus comprises a first RF port, a second RF port, a first resonator circuit and at least one second resonator circuit. The first resonator circuit and the second resonator circuit may be connected between the first RF port and the second RF port. The first resonator circuit may comprise a first inductor, a first capacitor, and a first stacked switch device. The second resonator circuit may comprise a second inductor, a second capacitor, and a second stacked switch device. The first capacitor and the first stacked switch device may be coupled in series across the first inductor. The second capacitor, the second inductor, and the second stacked switch device may be connected in parallel.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: August 18, 2020
    Assignee: Integrated Device Technology, Inc.
    Inventors: Hojung Ju, Roberto Aparicio Joo
  • Patent number: 10735044
    Abstract: An integrated front-end module (FEM) includes at least one power amplifier (PA) coupled to an antenna without inclusion of a switching element in a transmit signal path in the FEM between an output of the PA and the antenna. The FEM further includes at least one low-noise amplifier (LNA) and a switching circuit coupled in a receive signal path of the FEM between the antenna and an input of the LNA. The switching circuit is configured in a first mode to disable the PA and to connect the input of the LNA to the antenna for receiving signals from the antenna. The switching circuit is configured in a second mode to disconnect the input of the LNA from the antenna and to enable the PA for transmitting signals to the antenna.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: August 4, 2020
    Assignee: COOLSTAR TECHNOLOGY, INC.
    Inventor: Shuming Xu
  • Patent number: 10727810
    Abstract: A filter (10) includes a series arm circuit (11) and a parallel arm circuit (12). The parallel arm circuit (12) includes a parallel arm resonator (p1), a variable frequency circuit (12T), and a parallel arm resonator (p2) connected in parallel with a circuit in which the parallel arm resonator (p1) and the variable frequency circuit (12T) are connected in series. The variable frequency circuit (12T) includes a parallel arm resonator (p3) and a switch (SW) connected in parallel with the parallel arm resonator (p3), and is configured to change frequencies of a pass band and a frequency of an attenuation pole by switching between an on state and off state of the switch (SW). A resonant frequency and anti-resonant frequency of the parallel arm resonator (p1) are respectively different from a resonant frequency and anti-resonant frequency of the parallel arm resonator (p2).
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: July 28, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Nosaka
  • Patent number: 10693231
    Abstract: A transmit/receive switching circuit implementation reduces transmitting/receiving switching losses in a transceiver during different modes of operation. The implementation includes connecting a low noise amplifier and a power amplifier in accordance with a shunt configuration in the transceiver. The implementation also includes disabling the power amplifier to achieve a high impedance state by grounding an output stage bias and enabling the low noise amplifier and disabling one or more transistors connected to a path between the low noise amplifier and the power amplifier during a receive mode.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: June 23, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Jeremy Dunworth, Aliakbar Homayoun, Andrzej Partyka
  • Patent number: 10657338
    Abstract: The present invention relates to a microwave sensing device that uses antennas in the form of a 2×1 array with two radiators driven out of phase via a 180 degree power splitter for measuring a radio-frequency signal propagating through a mammalian specimen to obtain an integral estimate of bone density.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: May 19, 2020
    Inventors: Sergey N Makarov, Gregory M Noetscher, Viktor S Makarov, Ara Nazarian
  • Patent number: 10630282
    Abstract: Disclosed herein are switching or other active FET configurations that implement a main-auxiliary branch design. Such designs include a circuit assembly for performing a switching function that includes a branch including a main path in parallel with a first auxiliary path and the main path in series with a second auxiliary path. The circuit assembly also includes a first gate bias network connected to the main path. The circuit assembly also includes a second gate bias network connected to the first auxiliary path. The circuit assembly also includes a third gate bias network connected to the second auxiliary path, the second gate bias network and the third gate bias network configured to improve linearity of the switching function.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: April 21, 2020
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Hailing Wang, Dylan Charles Bartle, Hanching Fuh, Jerod F. Mason, David Scott Whitefield, Paul T. DiCarlo
  • Patent number: 10622985
    Abstract: The present application provides a square wave generating method, applied in a square wave generating circuit, configured to generate a mimetic square wave signal, wherein the square wave generating circuit has a breakdown voltage. The square wave generating method comprises the square wave generating circuit generating the mimetic square wave signal as a first voltage during a first time interval; the square wave generating circuit generating the mimetic square wave signal as a second voltage during a second time interval; and the square wave generating circuit generating the mimetic square wave signal as a transient voltage during a transient interval between the first time interval and the second time interval, wherein the transient voltage is between the first voltage and the second voltage; wherein a first voltage difference between the first voltage and the second voltage is greater than the breakdown voltage.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: April 14, 2020
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Fu-Chiang Yang, Meng-Ta Yang
  • Patent number: 10615777
    Abstract: Balun circuitry with a transceiver loop, a first antenna loop, and a second antenna loop is disclosed. The first antenna loop, the second antenna loop, and the transceiver loop are coaxially positioned such that the first antenna loop and the second antenna loop are coupled in opposite phase to the transceiver loop. In at least one exemplary embodiment, a semiconductor substrate has a layer that includes the first antenna loop, the second antenna loop, and the transceiver loop.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: April 7, 2020
    Assignee: Qorvo International PTE. LTD.
    Inventor: Hendrik Arend Visser
  • Patent number: 10554243
    Abstract: A multiway switch, a radio frequency system, and a wireless communication device include four throw (T) ports and four pole (P) ports, and the four T ports include one first T port coupled with all of the four P ports. The multiway switch is configured to be coupled with a radio frequency circuit and an antenna system of an electronic device operable in a dual-frequency single-transmit mode, to enable a preset function of the electronic device, the antenna system includes four antennas corresponding to the four P ports, and the preset function is a function of transmitting a sounding reference signal (SRS) through the four antennas in turn.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: February 4, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Jian Bai
  • Patent number: 10547120
    Abstract: An apparatus includes a package and a chip. The package may comprise (i) a plurality of bonding pads, (ii) a plurality of combiner/splitter circuits, and (iii) a plurality of bumps. The bonding pads may be configured to electrically connect the package with a printed circuit board substrate. The combiner/splitter circuits generally connect each of the bonding pads to two respective bumps of the plurality of bumps. The chip is generally disposed in the package. The chip may comprise a plurality of contact pads and a plurality of transceiver channels. Each of the transceiver channels may comprise a radio-frequency input and a radio-frequency output. The radio-frequency input and the radio-frequency output of each transceiver channel are generally connected to respective contact pads of the chip. The respective contact pads of each transceiver channel are generally coupled to a respective bonding pad of the package via the two respective bumps.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: January 28, 2020
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Samet Zihir, Tumay Kanar
  • Patent number: 10454175
    Abstract: A transceiver device and associated antenna are disclosed. In one aspect, the transceiver device combines first and second transceiver modules with a transceiver capability including a substantially planar radiating element and including a central point. Each transceiver module is a transceiver module coupled with the transceiver capability so as to excite a pair of excitation points of the radiating element, the excitation points of one pair being arranged symmetrically relative to the central point of the radiating element. The first and second transceiver modules respectively excite a first pair of excitation points arranged in a first direction of the radiating element and a second pair of excitation points arranged in a second direction of the radiating element, the first and second directions being mutually orthogonal.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: October 22, 2019
    Assignee: Thales
    Inventors: Vincent Petit, Bruno Louis, Christian Renard, Laurent Fedorowicz
  • Patent number: 10418719
    Abstract: An apparatus include a package, a chip and a plurality of bumps. The package may include (i) a plurality of bonding pads configured to exchange a plurality of radio-frequency signals with an antenna panel and (ii) a plurality of transmission lines configured to exchange the radio-frequency signals with the bonding pads. Two of the transmission lines may be connected to each of the bonding pads. The chip may be disposed in the package and may include (i) a plurality of transceiver channels configured to exchange the radio-frequency signals with the transmission lines and (ii) a plurality of switches configured to switch the radio-frequency signals to a signal ground. The bumps may be configured to exchange the radio-frequency signals between the transmission lines of the package and the transceiver channels of the chip. The transmission lines, the bumps and the switches may form a plurality of transmit/receive switches.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 17, 2019
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Samet Zihir, Tumay Kanar
  • Patent number: 10387691
    Abstract: A polar transmitter for an RFID reader and a system using the polar transmitter are disclosed. An RFID system according to at least some embodiments of the invention includes a polar transmitter employing a switch mode power amplifier. The system can also include a receiver to receive responses from RFID tags and a coupler connected to the polar transmitter, the receiver and one or more antennas. In at least some embodiments, the polar transmitter of the RFID system includes an envelope amplifier connected to the switch mode power amplifier to provide an envelope signal and a phase modulator connected to the switch mode power amplifier to phase modulate the switch mode power amplifier using a phase signal. In at least some embodiments, the polar transmitter of the RFID system transmits OPR-ASK signals to reduce AM modulation depth and provide a continuous phase signal for the phase modulator.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: August 20, 2019
    Assignee: Clairvoyant Technology LLC
    Inventor: Thomas J. Frederick
  • Patent number: 10348356
    Abstract: A transceiver suitable for frequency division duplex (FDD) communication is disclosed. In one exemplary embodiment, a transmitter leakage reduction circuit for a transceiver is described. The transmitter leakage reduction circuit comprises an auxiliary power amplifier, first and second filters, and a signal transmission arrangement. The auxiliary power amplifier is configured to provide an auxiliary power amplifier output signal that represents an output signal of a power amplifier of the transmitter with a controllable phase shift or gain output. The first and second filters are configured to attenuate any signals in the receive frequency band of the respective power amplifier output signal and auxiliary power amplifier output signal. The signal transmission arrangement is configured to suppress a contribution of the power amplifier output signal from a signal received from an RF connecting point using the auxiliary power amplifier output signal to obtain a received signal that is input to the receiver.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: July 9, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Andersson, Imad ud Din, Daniel Eckerbert, Henrik Sjöland, Johan Wernehag
  • Patent number: 10291283
    Abstract: Embodiments of the invention include a tunable radio frequency (RF) communication module that includes a transmitting component having at least one tunable component and a receiving component having at least one tunable component. The tunable RF communication module includes at least one piezoelectric switching device coupled to at least one of the transmitting and receiving components. The at least one piezoelectric switching device is formed within an organic substrate having organic material and is designed to tune at least one tunable component of the tunable RF communication module.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 14, 2019
    Assignee: Intel Corporation
    Inventors: Telesphor Kamgaing, Feras Eid, Adel A. Elsherbini, Georgios C. Dogiamis, Vijay K. Nair, Johanna M. Swan, Valluri R. Rao
  • Patent number: 10270485
    Abstract: A switch module includes a switch circuit and a filter. The switch circuit includes two or more selection terminals, a common terminal provided for the two or more selection terminals, and first and second bypass terminals. The filter is connected between the first and second bypass terminals and reduces harmonics of a radio-frequency signal which passes through the filter. The switch circuit is selectively switched between a first connection mode and a second connection mode. In the first connection mode, the common terminal is connected to any of the two or more selection terminals. In the second connection mode, the common terminal is connected to the first bypass terminal and the second bypass terminal is connected to any of the two or more selection terminals.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: April 23, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yukiteru Sugaya
  • Patent number: 10256532
    Abstract: An apparatus, a method, and a computer program for a vehicle having at least one interior antenna and at least one exterior antenna. The apparatus includes a transceiver module for communication via a frequency band and a control module to control the transceiver module. The control module provides signal processing for the transceiver module for signals from the at least one interior antenna and the at least one exterior antenna based on a combination of the signals from the at least one interior antenna and the at least one exterior antenna.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: April 9, 2019
    Assignee: Volkswagen AG
    Inventor: Matthias Mohaupt
  • Patent number: 10230423
    Abstract: System and method embodiments are provided for implementing balanced passive cancellation of self-interference (SI) for full-duplex (FD) communications. In an embodiment, a transceiver circuit for FD communications comprises an antenna comprising a first port and a second port, a transmitter, and a power divider coupled to the transmitter and comprising a first output and a second output. The transceiver circuit further comprises a receiver, a power combiner coupled to the receiver and comprising a first input and a second input, and a first circulator coupled to the first output of the power divider, the first port of the antenna, and the first input of the power combiner. The transceiver circuit also comprises a second circulator coupled to the second output of the power divider, the second port of the antenna, and the second input of the power combiner.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: March 12, 2019
    Assignee: Huawei Technologies Canada Co., Ltd.
    Inventors: Tho Le-Ngoc, Thanh Ngon Tran
  • Patent number: 10116347
    Abstract: An integrated front-end module (FEM) includes at least one power amplifier (PA) coupled to an antenna without inclusion of a switching element in a transmit signal path in the FEM between an output of the PA and the antenna. The FEM further includes at least one low-noise amplifier (LNA) and a switching circuit coupled in a receive signal path of the FEM between the antenna and an input of the LNA. The switching circuit is configured in a first mode to disable the PA and to connect the input of the LNA to the antenna for receiving signals from the antenna. The switching circuit is configured in a second mode to disconnect the input of the LNA from the antenna and to enable the PA for transmitting signals to the antenna.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: October 30, 2018
    Assignee: Coolstar Technology, Inc.
    Inventor: Shuming Xu
  • Patent number: 10110259
    Abstract: A band selection switch apparatus includes: a first switch including a first series switch disposed between a transmission input terminal and a first transmission and reception terminal; a second switch including a second series switch disposed between the transmission input terminal and a first transmission terminal; and a third switch including a third series switch disposed between a first reception output terminal and the first transmission and reception terminal. The first series switch includes a first series switch circuit including first series switch elements connected between the transmission input terminal and a first intermediate node, a second series switch circuit including second series switch elements connected between the first intermediate node and the first transmission and reception terminal, and a first shunt switch circuit including first shunt switch elements connected between the first intermediate node and a ground.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 23, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byeong Hak Jo, Jeong Hoon Kim, Hyun Paek, Young Wong Jang
  • Patent number: 9966987
    Abstract: The radio frequency switching system comprises an input/output terminal connectable to a radio frequency antenna, a receiving terminal, a transmission terminal, a group of diodes operatively interposed between the input/output terminal, the receiving terminal and the transmission terminal, at least a selection device between a receiving configuration, in which the input/output terminal is operatively connected to the receiving terminal, and a transmission configuration, wherein the input/output terminal is operatively connected to the transmission terminal, and a DC/DC voltage converter operatively connected to the group of diodes and able to generate a predetermined output voltage.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: May 8, 2018
    Assignee: Teko Telecom S.r.l.
    Inventors: Massimo Notargiacomo, Davide Durante
  • Patent number: 9948269
    Abstract: A high-frequency module includes a wiring board, a first duplexer that separates a transmission signal and a reception signal in a first frequency band, and a second duplexer that separates a transmission signal and a reception signal in a second frequency band whose reception-side frequency band partially overlaps with a frequency band of a third-order harmonic of the first transmission signal. The first duplexer is disposed near a predetermined side on a first main surface of the wiring board, and the second duplexer is disposed near an opposite side opposing the predetermined side. An extended line extending from a first transmission terminal of the first duplexer and an extended line extending from a second reception terminal of the second duplexer are spaced away from each other.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: April 17, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Hiromichi Kitajima
  • Patent number: 9947994
    Abstract: A plug-and-play antenna may be used with many different types of wireless communication devices. An antenna may be coupled to an impedance tuning component and a waveform generator. A calibration control module receives radio status information, controls the waveform generator to vary a response of the antenna, and tunes the impedance tuning component to match impedances between a radio and the antenna.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: April 17, 2018
    Assignees: INTEL CORPORATION, VIRGINA TECH INTELLECTUAL PROPERTIES, INC.
    Inventors: Seong-Youp Suh, Harry G. Skinner, W. Dawson Kesling, Majid Manteghi
  • Patent number: 9906260
    Abstract: Antenna systems that make use of an integrated proximity sensor or other sensor in order to implement a closed loop antenna selection system. In one embodiment, the antenna system is implemented within an exemplary portable wireless device and includes as its primary components for implementing the closed loop antenna selection system: a proximity sensor/microcontroller unit (MCU); a switching apparatus; a baseband front end module (FEM); and a number of antenna modules. The integrated proximity sensor/MCU detects the presence (influence) of a user's hand, or other loading by any other dielectric or metal component, through measurements that take place through the antenna modules and selects the appropriate RF path for transmission and/or reception by the mobile device. Methods of using and testing the aforementioned antenna systems are also disclosed.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 27, 2018
    Assignee: Pulse Finland Oy
    Inventors: Prasadh Ramachandran, Ilkka Heikura, Petteri Annamaa
  • Patent number: 9825599
    Abstract: A signal transmitting-receiving apparatus includes a first switching section, a second switching section, a controller, and an isolation unit. The first switching section is configured to connect Bluetooth signal receiving lines to a Bluetooth antenna. The second switching section configured to connect antennas to one of a Bluetooth receiving terminal, a Wi-Fi signal receiving terminal, and a Wi-Fi signal transmitting terminal. The controller is configured to signal process the Bluetooth signal and a Wi-Fi signal that are transmitted and received. The isolation unit is configured to suppress a signal coupling between the transmitted Bluetooth signal and the Bluetooth signal receiving lines.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hong In Kim
  • Patent number: 9722819
    Abstract: A distortion compensation system includes a first communication node including a first reception unit including an equalizer configured by a first digital filter unit and a first transmission unit including an emphasis circuit configured by a second digital filter unit, and a second communication node including a second transmission unit transmitting a training pattern before receiving normal data from the first communication node. The equalizer converges a filter constant of the first digital filter unit so that an error of the received training pattern is converged. The first transmission unit performs a distortion compensation using the converged filter constant of the first digital filter unit as at least a part of a filter constant of the second digital filter unit of the emphasis circuit, and then transmits the data.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: August 1, 2017
    Assignee: DENSO CORPORATION
    Inventors: Hironobu Akita, Shigeki Ohtsuka, Nobuaki Matsudaira, Takahisa Yoshimoto
  • Patent number: 9698740
    Abstract: Aspects of this disclosure relate to a mode linearization switch circuit that can adjust an effective impedance provided to an output of an amplifier. In an embodiment, an apparatus includes an amplifier configured to amplify a radio frequency (RF) signal and a mode linearization switch circuit electrically coupled to an output of the amplifier. The mode linearization switch circuit can include a capacitor, a switch in series with the capacitor, and a series LC circuit in parallel with the switch.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: July 4, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventors: Yu-Jui Lin, Andy Cheng Pang Wu, Peter Phu Tran
  • Patent number: 9692120
    Abstract: Disclosed are devices and methods related to a CMOS switch for radio-frequency (RF) applications. In some embodiments, the switch can be configured to include a resistive body-floating circuit to provide improved power handling capability. The switch can further include an electrostatic discharge (ESD) protection circuit disposed relative to the switch to provide ESD protection for the switch. Such a switch can be implemented for different switching applications in wireless devices such as cell phones, including band-selection switching and transmit/receive switching.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: June 27, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventor: Ying-Kuang Chen
  • Patent number: 9614575
    Abstract: A method and apparatus is disclosed to couple a transmission amplifier and a reception amplifier to a shared medium. An output of the transmission amplifier is directly coupled to an input of the reception amplifier to form a common connection. The transmission amplifier and the reception amplifier may receive a first amplifier bias via the common connection. In response to the first amplifier bias, the transmission amplifier provides a first communication signal to the shared medium and the reception amplifier does not provide a second communication signal from the shared medium. Alternatively, the transmission amplifier and the reception may receive a second amplifier bias via the common connection. In response to the second amplifier bias, the reception amplifier provides the second communication signal from the shared medium and the transmission amplifier does not provide the first communication signal to the shared medium.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 4, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Ramon Gomez, Giuseppe Cusmai, Jianhong Xiao, Takayuki Hayashi, Young Shin
  • Patent number: 9553614
    Abstract: Provided is a technique capable of improving isolation characteristics between a plurality of signal paths through which RF signals pass, without using ground electrodes or the like. Wiring electrodes 10a and 20a through which RF signals do not pass simultaneously are formed so as to be adjacent to each other in a central region of a component mounting surface 2a of a circuit board 2, and wiring electrodes 11a and 21a through which RF signals pass simultaneously are formed so as to be distanced from transmission paths 10 and 20. Accordingly, the RF signals do not simultaneously pass through the transmission paths 10 and 20, which are disposed near each other, and thus there is no risk that the RF signal passing through one of the signal paths will interfere with the RF signal passing through the other signal path.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: January 24, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Akihiro Hara, Masahiko Ura, Takahiro Watanabe