US 11,777,553 B2Granted

High-frequency module

AssigneeMurata Manufacturing Co., Ltd.

InventorsSatoshi Sakurai, Satoshi Arayashiki, Satoshi Tanaka, Kyoichi Hirayama, Tomohito Ito, Kenta Kurahashi

Life of this patent

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Abstract

A high-frequency module includes a transmission signal amplifier that outputs a transmission signal to an antenna terminal side; a reception signal amplifier that amplifies a reception signal supplied from an antenna terminal; a switch that selectively connects the antenna terminal to either an output of the transmission signal amplifier or an input of the reception signal amplifier; and a directional coupler that is provided on a transmission signal path and detects a signal level of the transmission signal. The transmission signal amplifier is controlled by a first control signal supplied from a first control circuit. The reception signal amplifier is controlled by a second control signal supplied from a second control circuit. The switch is controlled by a switch control signal supplied from the first control circuit. The directional coupler is controlled by a coupler control signal supplied from the first control circuit.

Claims6

Dependent claims

A high-frequency module comprising:

a first antenna terminal;
a second antenna terminal;
a first transmission signal amplifier configured to amplify a radio frequency signal, and to output a first transmission signal to the first antenna terminal and/or the second antenna terminal;
a first reception signal amplifier configured to amplify a reception signal supplied from the first antenna terminal and/or the second antenna terminal, and to output a first reception signal;
a first directional coupler in a first transmission signal path between the first transmission signal amplifier and the first and second antenna terminals, the first directional coupler being configured to detect a signal level of the first transmission signal;
a first switch circuit configured to selectively connect the first or second antenna terminal to an output of the first transmission signal amplifier or to an input of the first reception signal amplifier;
and
a second switch circuit configured to selectively connect the first switch circuit to the first antenna terminal and/or the second antenna terminal,
wherein the first directional coupler is connected between the first switch circuit and the second switch circuit.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/663,585Filed 16 May 2022 · continuation
Priority: JP 2017-24435120 Dec 2017
Published: US 2022/0271790 A125 Aug 2022
Granted: 3 Oct 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

H04B 1/48
Transmit/receive switching: in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
H04B 1/0057
With common antenna for more than one band: using diplexing or multiplexing filters for selecting the desired band
H04B
Transmission

Family

Application16/215,777Parent of this continuation · filed 11 Dec 2018
Application16/788,625Parent of this continuation · filed 12 Feb 2020
Application17/015,477Parent of this continuation · filed 9 Sep 2020
US 10,804,955 B2Parent of this continuation · filed 13 Oct 2020
US 11,088,720 B2Parent of this continuation · filed 10 Aug 2021
US 2022/0271790 A1Pre-grant publication · published 25 Aug 2022
US 11,496,178 B2Parent of this continuation
US 11,336,324 B2Related patent
US 2019/0190563 A1Published application
US 2020/0186185 A1Published application
US 2020/0412404 A1Published application
US 11,777,553 B2This patent

From the US filing history. Foreign family members aren’t listed.