公开(公告)号：US11984924B2

公开(公告)日：2024-05-14

申请号：US16711898

申请日：2019-12-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Seima Kondo ,  Satoshi Tanaka ,  Satoshi Arayashiki ,  Hiroyuki Furusato ,  Jin Yokoyama ,  Toru Yamaji ,  Akio Kaneda ,  Kiwamu Sakano ,  Junichi Yoshioka ,  Tatsuya Tsujiguchi ,  Atushi Ono

IPC: H04B1/48 ,  H03F3/21 ,  H05K1/02

CPC classification number: H04B1/48 ,  H03F3/21 ,  H05K1/0243 ,  H03F2200/294 ,  H03F2200/451 ,  H05K2201/10098

Abstract: A transmit/receive module includes plural duplexers, a power amplifier, and a sending transmission line. The plural duplexers operate in bands different from each other and each includes a transmit filter and a receive filter. The power amplifier amplifies signals of pass bands of the plural transmit filters and outputs the amplified signals. The sending transmission line is connected to the plural transmit filters. The signals of the pass bands of the plural transmit filters output from the power amplifier are transmitted through the sending transmission line.

公开(公告)号：US11177780B2

公开(公告)日：2021-11-16

申请号：US16831107

申请日：2020-03-26

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Junichi Yoshioka ,  Hirotsugu Mori

IPC: H03F3/19 ,  H03F1/08

Abstract: A front-end circuit includes: a filter that converts an unbalanced radio frequency signal inputted to an input terminal into two balanced radio frequency signals, and outputs one of the two balanced radio frequency signals from an output terminal and the other of the two balanced radio frequency signals from another output terminal; a low-noise amplifier connected to the output terminal; and a low-noise amplifier connected to the other output terminal.