公开(公告)号：US20240243720A1

公开(公告)日：2024-07-18

申请号：US18410258

申请日：2024-01-11

申请人： Skyworks Solutions, Inc.

发明人： Joshua James Caron ,  Rei Goto ,  Benjamin Paul Abbott ,  Hiroyuki Nakamura

IPC分类号： H03H9/02 ,  H03F3/24 ,  H03H9/145 ,  H03H9/25 ,  H03H9/64 ,  H04B1/40

CPC分类号： H03H9/02685 ,  H03F3/245 ,  H03H9/02574 ,  H03H9/02834 ,  H03H9/02842 ,  H03H9/145 ,  H03H9/25 ,  H03H9/6406 ,  H03H9/6483 ,  H04B1/40 ,  H03F2200/451

摘要： Aspects of this disclosure relate to a surface acoustic wave filter with an acoustic velocity adjustment structure. The surface acoustic wave filter can include a first interdigital transducer electrode disposed on a piezoelectric layer, an acoustic reflector disposed on the piezoelectric layer, and a second interdigital transducer electrode disposed on the piezoelectric layer. The second interdigital transducer electrode is longitudinally coupled to the first interdigital transducer electrode and positioned between the first interdigital transducer electrode and the acoustic reflector. The acoustic velocity adjustment structure can be positioned over at least a gap between the first interdigital transducer electrode and the second interdigital transducer electrode. The acoustic velocity adjustment structure can be arranged to increase an acoustic wave propagation velocity in a first region that includes the gap relative to a second region over at least a portion of the first interdigital transducer electrode.

公开(公告)号：US20240243700A1

公开(公告)日：2024-07-18

申请号：US18400451

申请日：2023-12-29

申请人： Qorvo US, Inc.

发明人： Amin Shahverdi ,  Rached Hajji ,  Thomas Landon

IPC分类号： H03F1/02 ,  H03F3/24

CPC分类号： H03F1/0288 ,  H03F3/245 ,  H03F2200/192 ,  H03F2200/451

摘要： This disclosure relates generally to Doherty amplifiers. In one embodiment, a Doherty amplifier includes an RF input of the Doherty amplifier for receiving a radio frequency (RF) signal, a main amplifier coupled to the RF input, and an auxiliary amplifier coupled to the RF input. A phase lag component connected between the RF input and one of either the main amplifier or the auxiliary amplifier and a phase lead component connected between the RF input and another one of either the main amplifier or the auxiliary amplifier. In some embodiments, the phase lead and phase lag components ensure that the split signals output from the main and auxiliary amplifier are recombined in phase throughout a frequency band.

公开(公告)号：US20240235586A9

公开(公告)日：2024-07-11

申请号：US18403443

申请日：2024-01-03

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： John Moon ,  Hyoseok Na ,  Dongil Yang ,  Doohwan Lee

IPC分类号： H04B1/04 ,  H03F3/24 ,  H04B1/44

CPC分类号： H04B1/0458 ,  H03F3/245 ,  H04B1/0475 ,  H04B1/44 ,  H03F2200/294 ,  H04B2001/0416

摘要： Provided is an electronic device including a transceiver configured to output a first transmission signal, a first radio frequency (RF) module configured to amplify the first transmission signal obtained from the transceiver to generate an amplified first transmission signal, a first antenna configured to transmit the amplified first transmission signal, and a main coupler provided outside the first RF module along a transmission path between the first RF module and the first antenna, and configured to output a first coupling signal corresponding to the first transmission signal. The first RF module includes at least one power amplifier configured to amplify the first transmission signal, and a switch configured to connect one of a plurality of input ports, including at least one input port connected to the main coupler and configured to receive the first coupling signal output by the main coupler, with an output port connected to the transceiver.

公开(公告)号：US12034417B2

公开(公告)日：2024-07-09

申请号：US18052779

申请日：2022-11-04

申请人： Skyworks Solutions, Inc.

发明人： Douglas M. Johnson

IPC分类号： H03F3/45 ,  H03F3/195 ,  H03F3/24

CPC分类号： H03F3/245 ,  H03F3/195 ,  H03F2200/451

摘要： Apparatus and methods for power amplifier distortion networks are disclosed. In one aspect, there is provided a power amplifier system including a power amplifier configured to amplify a radio frequency input signal. The power amplifier including an input configured to receive the radio frequency input signal and an output configured to generate an amplified radio frequency signal. The power amplifier system further includes a distortion network electrically coupled to either the input or the output of the power amplifier. The distortion network including a plurality of channelized resistors. The channelized resistors connected in series to either an input or an output of the power amplifier.

公开(公告)号：US20240223139A1

公开(公告)日：2024-07-04

申请号：US18391754

申请日：2023-12-21

申请人： RADROCK (SHENZHEN) TECHNOLOGY CO., LTD

发明人： Chuanqiu Lei ,  Yunlong Jiang ,  Kaiyao Yu ,  Yongjian Lei ,  Yuan Cao ,  Jianxing Ni

IPC分类号： H03F3/24 ,  H05K1/02

CPC分类号： H03F3/245 ,  H05K1/0243 ,  H03F2200/09 ,  H05K2201/10166

摘要： Disclosed is an RF module. The substrate includes a first layout area and a second layout area. The first RF chip is located in the first layout area, including a first power amplifier and a second power amplifier. The first switch chip is arranged in the first layout area and connected to the output ends of the first and second power amplifier. The second RF chip is arranged in second layout area, including a third power amplifier. The second switch chip is arranged in the second layout area and connected to the output end of the third power amplifier. The RF module shortens the transmission distance of RF signals between the first RF chip and first switch chip and between the second RF chip and second switch chip by arranging components in two areas separately, thus reducing the insertion loss and interference and improving the output quality of RF signals.

公开(公告)号：US20240223133A1

公开(公告)日：2024-07-04

申请号：US18202963

申请日：2023-05-29

申请人： RichWave Technology Corp.

发明人： Chang-Heng Chen ,  Tien-Yun Peng ,  Chih-Sheng Chen

IPC分类号： H03F1/30 ,  H03F3/24

CPC分类号： H03F1/30 ,  H03F3/245 ,  H03F2200/451

摘要： A radio-frequency circuit can include a power amplifier, a first bias circuit and a second bias circuit. The power amplifier can include an input terminal used to receive a radio-frequency signal, and an output terminal used to output an amplified radio-frequency signal. The first bias circuit can include a first output terminal coupled to the input terminal of the power amplifier through a common node. The second bias circuit can include a second output terminal and a current adjustment circuit, where the second output terminal can be coupled to the common node, and the current adjustment circuit can include a transistor. The transistor can include a first terminal coupled to the second output terminal, a second terminal used to receive a reference voltage, and a control terminal.

公开(公告)号：US12028058B2

公开(公告)日：2024-07-02

申请号：US18301184

申请日：2023-04-14

申请人： Samsung Electronics Co., Ltd.

发明人： Amitoj Singh ,  Tienyu Chang ,  Siu-Chuang Ivan Lu

IPC分类号： H03K17/56 ,  H03F3/24 ,  H04B1/04

CPC分类号： H03K17/56 ,  H03F3/245 ,  H04B1/04 ,  H03F2200/451 ,  H03K2217/0036

摘要： A shunt switch. In some embodiments, the shunt switch includes a transistor stack including a first transistor and a capacitor. The transistor stack may have a first end terminal and a second end terminal, the first transistor being connected to the first end terminal, the first end terminal being connected to a switching terminal of the shunt switch. The capacitor may have a first terminal connected to the second end terminal of the transistor stack, and a second terminal connected to a low-impedance node.

公开(公告)号：US12028051B2

公开(公告)日：2024-07-02

申请号：US17241126

申请日：2021-04-27

申请人： Murata Manufacturing Co., Ltd.

发明人： Yasuharu Nakai ,  Katsuya Daimon

IPC分类号： H03H9/64 ,  H03F3/195 ,  H03F3/24 ,  H03F3/72 ,  H03H9/02 ,  H03H9/145 ,  H03H9/25 ,  H03H9/72 ,  H04B1/00 ,  H04B1/40 ,  H03F3/19 ,  H03F3/21

CPC分类号： H03H9/6489 ,  H03F3/195 ,  H03F3/245 ,  H03F3/72 ,  H03H9/02559 ,  H03H9/02637 ,  H03H9/02937 ,  H03H9/145 ,  H03H9/25 ,  H03H9/6483 ,  H03H9/6496 ,  H03H9/725 ,  H04B1/0057 ,  H04B1/40 ,  H03F3/19 ,  H03F3/21 ,  H03F2200/111 ,  H03F2200/165 ,  H03F2200/171 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/7209 ,  H03H9/02834

摘要： A first filter of a multiplexer includes serial resonators and parallel resonators that are acoustic wave resonators. A first of the serial resonators that is closer to a common terminal than the other serial resonators is connected to the common terminal without the parallel resonators interposed therebetween. Each of the elastic wave resonators includes a substrate having piezoelectricity, an IDT electrode provided on the substrate, and a dielectric layer provided on the substrate to cover the IDT electrode. A thickness of the dielectric layer of the first serial resonator is smaller than a thickness of each of the dielectric layers of the remainder of the elastic wave resonators.

公开(公告)号：US12021493B1

公开(公告)日：2024-06-25

申请号：US17505409

申请日：2021-10-19

申请人： SANTAK ELECTRONIC (SHENZHEN) CO., LTD.

发明人： Huafen Ouyang ,  Hualiang Li ,  Dongxin Jin

IPC分类号： H03F3/26 ,  H03F1/30 ,  H03F1/52 ,  H03F3/24

CPC分类号： H03F3/26 ,  H03F1/307 ,  H03F1/52 ,  H03F3/245 ,  H03F2200/351

摘要： The present invention provides a driving circuit for a switching transistor and a driving device including the same. The driving circuit includes: a power amplifier, including a first power transistor and a second power transistor that are connected between a first direct current voltage terminal and a second direct current voltage terminal and are arranged in a push-pull circuit; a first voltage regulating device, connected between an input terminal of the power amplifier and a control terminal of the first power transistor; a third power transistor, connected between an output terminal of the power amplifier and the second direct current voltage terminal or a grounding terminal; a first voltage dividing device, connected between the input terminal and the output terminal of the power amplifier; and a transistor control circuit, configured to: control the third power transistor to be turned on when the switching transistor is located in a short-circuit path, and control the third power transistor to be turned off when the switching transistor is controlled to be turned on and is not located in the short-circuit path. The driving circuit of the present invention reduces the power consumption of the switching transistor and extends the time for short-circuit protection.

公开(公告)号：US20240204738A1

公开(公告)日：2024-06-20

申请号：US18545959

申请日：2023-12-19

申请人： Skyworks Solutions, Inc.

发明人： Neal J. Tuffy ,  Tomas J. Tansley ,  Valter Karavanic ,  Thierry Marie Favard ,  Daniel James Pardi

IPC分类号： H03F3/24 ,  H03F1/56

CPC分类号： H03F3/245 ,  H03F1/56 ,  H03F2200/211 ,  H03F2200/451

摘要： A multi-mode power amplifying apparatus has a power amplifier and an attenuator coupled to an input of the power amplifier. The power amplifying apparatus is adapted to operate in a plurality of operation modes and configured to amplify, in each operation mode, a radio frequency signal with an associated power amplifier gain. A tuning controller is configured to adjust a setting of the attenuator based on a current operation mode.