公开(公告)号：US12206444B2

公开(公告)日：2025-01-21

申请号：US18312929

申请日：2023-05-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsushi Ono

IPC: H04B1/40 ,  H04B1/44 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  H04W52/42

Abstract: A radio-frequency front-end circuit includes a first switch and a first transfer circuit that transfers a first radio-frequency signal. The first switch includes a first antenna terminal connected to a first antenna, a second antenna terminal connected to a second antenna, and first and second selection terminals. The first selection terminal is connected to the first transfer circuit, and the second selection terminal connected to a second transfer circuit. The second transfer circuit transfers the second radio-frequency signal. Selection between conduction of the first antenna terminal with the first selection terminal and conduction of the first antenna terminal with the second selection terminal is exclusively carried out in the first switch. Selection between conduction of the second antenna terminal with the first selection terminal and conduction of the second antenna terminal with the second selection terminal is exclusively carried out in the first switch.

公开(公告)号：US20240429917A1

公开(公告)日：2024-12-26

申请号：US18707001

申请日：2022-11-08

Applicant: ICEYE Oy

Inventor： Sergei Ossif

IPC: H03K17/687 ,  H03F3/24 ,  H04B1/00 ,  H04B1/44

Abstract: An RF switching circuit for switching RF signals, the RF switching circuit comprises one or more RF switch drivers and one or more RF switches, the RF switch drivers configured to drive the one or more RF switches by supplying power to the one or more RF switches, the RF switch driver comprising an isolated gate driver comprising one or more inputs, one or more outputs, and electrical separation between the input circuitry and the output circuitry of the isolated gate driver, the RF switch driver configured to receive an input signal indicating when the one or more RF switches should be turned on and/or off, and to send in response an appropriate signal at the appropriate voltage to the one or more RF switches to turn them on or off according to the input signal.

公开(公告)号：US12136941B2

公开(公告)日：2024-11-05

申请号：US18363908

申请日：2023-08-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ohhyuck Kwon ,  Jaeyoung Huh ,  Daesuk Kang ,  Boram Kim ,  Jonghoon Lim ,  Sungchul Park

IPC: H04B1/44 ,  H01Q3/24 ,  H01Q21/00 ,  H04B1/00 ,  H04M1/02

Abstract: An electronic device and method thereof are provided. A method includes, while a wireless communication of a first frequency band is performed via a first 5G antenna, obtaining first status information related to the first 5G antenna and second status information related to a second 5G antenna; if the first status information does not satisfy a first predetermined condition and the second status information satisfies a second predetermined condition, switching from the first 5G antenna to the second 5G antenna, and performing the wireless communication in the first frequency band via the second 5G antenna; and if the first status information does not satisfy the first predetermined condition and the second status information does not satisfy the second predetermined condition, switching from the first 5G antenna to a legacy communication antenna, and performing the wireless communication in a second frequency band via the legacy communication antenna.

公开(公告)号：US12119206B2

公开(公告)日：2024-10-15

申请号：US18133356

申请日：2023-04-11

Applicant: ASM AMERICA, INC.

Inventor： Anton Mavretic ,  Ian M. Costanzo ,  Ronald Anthony Decker

IPC: H03F3/191 ,  H01J37/32 ,  H01L21/02 ,  H01L21/3065 ,  H01L21/311 ,  H01L29/20 ,  H01L29/778 ,  H01L29/861 ,  H01L49/02 ,  H02M3/335 ,  H03H7/38 ,  H03H7/40 ,  H03K17/687 ,  H04B1/44 ,  H02M3/00 ,  H03K17/10 ,  H03K17/691 ,  H03K17/795

CPC classification number: H01J37/32082 ,  H01L21/02274 ,  H01L21/3065 ,  H01L21/31116 ,  H01L28/20 ,  H01L28/40 ,  H01L29/2003 ,  H01L29/7787 ,  H01L29/861 ,  H02M3/33569 ,  H03H7/38 ,  H03H7/40 ,  H03K17/687 ,  H04B1/44 ,  H01J2237/334 ,  H02M3/01 ,  H03F3/191 ,  H03K17/102 ,  H03K2017/6875 ,  H03K17/691 ,  H03K17/7955

Abstract: In one embodiment, an impedance matching network includes a variable reactance circuit having fixed reactance components and corresponding switching circuits. Each switching circuit includes a diode and a driver circuit. The driver circuit includes, coupled in series, a biasing current source positioned to provide a bias current to bias the diode, a first switch, a second switch, and a resistor. For each diode of each switching circuit, the control circuit is configured to receive a value related to a voltage drop on the resistor and, based on the value related to the voltage drop, adjust the bias current being provided by the biasing current source.

公开(公告)号：US20240340038A1

公开(公告)日：2024-10-10

申请号：US18296806

申请日：2023-04-06

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： John Bucceri

IPC: H04B1/44 ,  H03K17/56

CPC classification number: H04B1/44 ,  H03K17/56

Abstract: High power monolithic microwave integrated circuit (MMIC) differential single pole double throw switches utilizing a series of transistors formed by a gallium nitride (GaN) foundry process. The differential switches of the present disclosure allow for larger power handling capability and wideband operation while further providing differential amplitude and phase matching.

公开(公告)号：US20240333334A1

公开(公告)日：2024-10-03

申请号：US18620340

申请日：2024-03-28

Applicant: Icom Incorporated

Inventor： Shinichirou Adachi ,  Hiroki Nishino ,  Masaomi Kawashita

IPC: H04B1/44 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B1/44 ,  H04B7/0608 ,  H04B7/0805

Abstract: A switching device includes: a transmission path configured to transmit a transmission signal; a reception path configured to transmit a reception signal; a main-path switching part configured to perform switching of paths so as to connect one of two radio devices to the transmission path and connect the other of the two radio devices to the reception path; and a command output section configured to output a permission command that permits the radio device connected to the transmission path to perform transmission and configured to output a prohibition command that prohibits the radio device connected to the reception path from performing transmission.

公开(公告)号：US12107619B2

公开(公告)日：2024-10-01

申请号：US18355705

申请日：2023-07-20

Applicant: Qorvo US, Inc.

Inventor： Nadim Khlat

IPC: H04B1/44 ,  H04B1/00 ,  H04L5/14 ,  H03H7/46 ,  H03H11/34 ,  H04L5/00

CPC classification number: H04B1/44 ,  H04B1/006 ,  H04L5/14 ,  H03H7/465 ,  H03H11/344 ,  H04L5/001

Abstract: A switchable RF transmit/receive (TX/RX) multiplexer, which includes a group of RF TX bandpass filters, a group of RF TX switching elements, and a group of RF RX bandpass filters; is disclosed. The group of RF TX bandpass filters includes a first RF TX bandpass filter and a second RF TX bandpass filter, such that each of the first RF TX bandpass filter and the second RF TX bandpass filter is coupled to a first filter connection node. The group of RF TX switching elements includes a first RF TX switching element coupled between the first filter connection node and a first common connection node, which is coupled to a first RF antenna. Each of the group of RF RX bandpass filters is coupled to the first common connection node.

公开(公告)号：US20240283470A1

公开(公告)日：2024-08-22

申请号：US18570446

申请日：2021-06-14

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Piotr Jedrzejewski ,  Rui Hou ,  David Scafe

IPC: H04B1/00 ,  H04B1/44 ,  H04L5/14

CPC classification number: H04B1/0057 ,  H04B1/44 ,  H04L5/14

Abstract: There is provided a filter unit for wideband multicarrier TDD operation. The filter unit comprises a transmission multiplexer (MXT), at least one circulator, and a filter bank. The MXT and the filter bank are connected via the at least one circulator. The MXT is configured to receive a transmission (TX) wideband multicarrier signal as 5 provided by at least one PA, and to provide a first bandpass (BP) filtered TX wideband multicarrier signal to the at least one circulator. The MXT comprises at least one first BP filter structure for first BP filtering of the TX wideband multicarrier signal. The at least one circulator is configured to receive the first BP filtered TX wideband multicarrier signal from the MXT and provide the first BP filtered TX 10 wideband multicarrier signal to the filter bank. The filter bank is configured to receive the first BP filtered TX wideband multicarrier signal from the at least one circulator, and to provide a second BP filtered TX wideband multicarrier signal towards an antenna port. The filter bank comprises at least as many second BP filter structures as there are first BP filter structures for second BP filtering of the first BP filtered TX 15 wideband multicarrier signal to provide the second BP filtered TX wideband multicarrier signal.

公开(公告)号：US12052015B2

公开(公告)日：2024-07-30

申请号：US18141927

申请日：2023-05-01

Applicant: SKYWORKS SOLUTIONS, INC.

Inventor： Yu Zhu ,  Oleksiy Klimashov ,  Paul T DiCarlo

IPC: H03K17/693 ,  H01L29/93 ,  H03K17/16 ,  H04B1/44

CPC classification number: H03K17/693 ,  H01L29/93 ,  H03K17/161 ,  H04B1/44

Abstract: Described herein are switches with asymmetrical anti-series varactor pairs to improve switching performance. The disclosed switches can include asymmetrical varactor pairs to reduce distortions. The asymmetry in the varactor pairs can be associated with geometry of each varactor in the pair. The disclosed switches can stack both symmetrical and asymmetrical varactor pairs. The disclosed switches with asymmetrical anti-series varactor pairs can be configured to improve both H2 and H3 simultaneously.

公开(公告)号：US12028104B2

公开(公告)日：2024-07-02

申请号：US17540832

申请日：2021-12-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tianhang Yu ,  Gongzheng Zhang ,  Rong Li ,  Chuili Kong ,  Yue Zhou ,  Jun Wang

IPC: H04B1/44 ,  H01Q7/00 ,  H04B15/00 ,  H04L5/14

CPC classification number: H04B1/44 ,  H01Q7/00 ,  H04B15/00 ,  H04L5/1461

Abstract: Embodiments of this application provide example transceiver devices and example transceiver apparatuses used in the example transceiver devices. One example transceiver apparatus includes a transmit antenna and a receive antenna. The transmit antenna is configured to send a local signal to a receive antenna of a peer end. The receive antenna is configured to receive a signal transmitted by a transmit antenna of the peer end. The transmit antenna is on an interference cancellation plane of the receive antenna. The receive antenna is on an interference cancellation plane of the transmit antenna. An interference signal generated by the transmit antenna is canceled on the interference cancellation plane of the receive antenna or the interference cancellation plane of the transmit antenna.