Murata Manufacturing Co., Ltd.

Junichi Yoshioka

Satoshi Tanaka

Hirotsugu Mori

Tatsuya Tsujiguchi

Satoshi Arayashiki

Jin Yokoyama

Akio Kaneda

Kiwamu Sakano

Toru Yamaji

Seima Kondo

Hiroyuki Furusato

Atushi Ono

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.

Transmit/receive module

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.

Front-end circuit and communication device

Growing community of inventors

Nagaokakyo, Japan

Junichi Yoshioka