Radio frequency front-end circuit

专利名称：Radio frequency front-end circuit发明人：Takanori Uejima,Hiromichi Kitajima,Saneaki

Ariumi,Hisao Hayafuji,Tatsuya Tsujiguchi

申请号：US15235295申请日：20160812公开号：US099608B2公开日：20180501

专利附图：

摘要：A radio frequency front-end circuit includes a duplexer, a phase adjustmentcircuit, and a low noise amplifier. The phase adjustment circuit is connected between an Rxfilter of the duplexer and the low noise amplifier. The phase adjustment circuit executes

phase adjustment such that a quadrant in which an impedance ZLNA(fn) at a particularfrequency different from a fundamental frequency of a reception signal when looking atthe low noise amplifier side from the Rx filter is present and a quadrant in which animpedance ZRX(fn) at the particular frequency when looking at the Rx filter side from thelow noise amplifier is present are not in a conjugate relation in terms of phase.

申请人：Murata Manufacturing Co., Ltd.

地址：Nagaokakyo-shi, Kyoto-fu JP

国籍：JP

代理机构：Keating & Bennett, LLP

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