RADIO-FREQUENCY SWITCH AND APPARATUS WITH COUPLER BUILT-IN

A coupler built-in type high frequency switch circuit according to the embodiment of the present invention includes a high frequency switch connected between at least one first signal port and a common port and including at least one first band switch circuit for switching a first band signal; and a...

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Bibliographic Details
Main Authors LIM, JONG MO, YOO, HYUN HWAN, NA, YOO SAM, YOO, HYUN JIN, KIM, YOO HWAN, CHEON, SEONG JONG
Format Patent
LanguageEnglish
Korean
Published 17.01.2018
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Summary:A coupler built-in type high frequency switch circuit according to the embodiment of the present invention includes a high frequency switch connected between at least one first signal port and a common port and including at least one first band switch circuit for switching a first band signal; and a coupler disposed adjacent to a signal line formed between the antenna port and the common port of the high frequency switch, and including a first coupler line forming a first signal coupling with the signal line. The resonance frequency of the first coupling line is determined by the inductance of the first coupling line and the capacitance of the high frequency switch. It is possible to improve the coupling characteristics of the coupler. 본 발명의 일 실시 예에 따른 커플러 내장형 고주파 스위치 회로는 적어도 하나의 제1 신호포트와 공통 포트 사이에 접속되어 제1 밴드신호를 스위칭하는 적어도 하나의 제1 밴드 스위치 회로를 포함하는 고주파 스위치; 및 상기 고주파 스위치의 공통 포트와 안테나포트 사이에 형성된 신호배선에 인접해서 배치되어, 상기 신호배선과 제1 신호 커플링을 형성하는 제1 커플링 배선을 포함하는 커플러; 를 포함하고, 상기 제1 커플링 배선에 의한 공진주파수는 상기 제1 커플링 배선에 의한 인덕턴스와 상기 고주파 스위치의 커패시턴스에 의해 결정된다.
Bibliography:Application Number: KR20160154330