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1. 发明公开

KR1020040051479A 2중 밴드 무선송수신기의 무선주파수 프론트엔드 无效
标题翻译：双模带无线收发器的无线电频率前端，小型插入损耗
公开(公告)号：KR1020040051479A
公开(公告)日：2004-06-18
申请号：KR1020030044640
申请日：2003-07-02
申请人： 혼하이 프리시젼 인더스트리 컴퍼니 리미티드
发明人： 지밍헤 , 핑펭 , 노파콘헤어란라트 , 인퀴안 , 푸셍첸
IPC分类号： H04B1/44
CPC分类号： H04B1/006 , H04B1/005 , H04B1/406
摘要： PURPOSE: An RF front end of a dual-mode band wireless transceiver is provided to be supplied for a dual-mode wireless transceiver module, and to supply a dual-mode RF front end having an antenna select diversity for both transmission path and receiving path. CONSTITUTION: An RF front end adopted within a dual-mode transceiver module connects the first and second dual-mode band antennas(40a,40b), and consists of the first and second signal receiving paths for receiving an RF signal in two different frequency bands, the first and second signal transmission paths for transmitting the RF signal in two different frequency bands, and a switch unit for connecting the first and second dual-mode band antennas(40a,40b) with the first and second signal transmission and receiving paths. The switch unit is composed of a DPDT(Dual Pole Dual Throw) switch(31) and two SPDT(Single Pole Dual Throw) switches(32,33).
摘要翻译：目的：双模式无线收发器的RF前端被提供给双模式无线收发器模块，并且提供具有用于传输路径和接收路径的天线选择分集的双模RF前端。构成：双模收发器模块内采用的RF前端连接第一和第二双模频带天线（40a，40b），并由第一和第二信号接收路径组成，用于接收两个不同频带的RF信号用于在两个不同频带中发送RF信号的第一和第二信号传输路径，以及用于将第一和第二双模频带天线（40a，40b）与第一和第二信号发送和接收路径连接的开关单元。开关单元由DPDT（双极双掷）开关（31）和两个SPDT（单极双掷）开关（32,33）组成。

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