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1. 发明授权

US07155178B2 Circuit system for wireless communications 有权
标题翻译：无线通信电路系统
公开(公告)号：US07155178B2
公开(公告)日：2006-12-26
申请号：US10767542
申请日：2004-01-29
申请人： Kevin Chang , Gang-Yi Lin
发明人： Kevin Chang , Gang-Yi Lin
IPC分类号： H04B7/02 , H04B1/034 , H04B1/18
CPC分类号： H04B1/0057 , H04B1/005 , H04B1/006 , H04B1/406 , H04B1/44
摘要： A circuit system for wireless communications via two antennas. The circuit system includes a printed circuit board having a predetermined area devoid of a solder mask. According to the invention, an antenna switch, filter, and power amplifier are mounted on the printed circuit board within the predetermined area. The antenna switch connects the filter and the power amplifier with the two antennas. The filter blocks unwanted frequency components in an RF receive signal from either of the antennas. A transceiver is responsible for down-converting the RF receive signal a baseband receive signal and up-converting a baseband transmit signal to an RF transmit signal. A first matching network coupled between the filter and the transceiver transforms the RF receive signal from single-ended to differential. Likewise, a second matching network coupled between the transceiver and the power amplifier transforms the RF transmit signal from differential to single-ended.
摘要翻译：一种用于经由两个天线进行无线通信的电路系统。电路系统包括具有没有焊接掩模的预定区域的印刷电路板。根据本发明，天线开关，滤波器和功率放大器安装在预定区域内的印刷电路板上。天线开关用两个天线连接滤波器和功率放大器。滤波器阻止来自任一天线的RF接收信号中的不需要的频率分量。收发器负责将RF接收信号下变频为基带接收信号，并将基带发射信号上变频为RF发射信号。耦合在滤波器和收发器之间的第一匹配网络将RF接收信号从单端到差分转换。同样地，耦合在收发器和功率放大器之间的第二匹配网络将RF发射信号从差分变换为单端。

2. 发明申请

US20050170790A1 Circuit system for wireless communications 有权
标题翻译：无线通信电路系统
公开(公告)号：US20050170790A1
公开(公告)日：2005-08-04
申请号：US10767542
申请日：2004-01-29
申请人： Kevin Chang , Gang-Yi Lin
发明人： Kevin Chang , Gang-Yi Lin
IPC分类号： H04B1/02 , H04B1/38 , H04B1/40 , H04B1/44 , H04B1/46
CPC分类号： H04B1/0057 , H04B1/005 , H04B1/006 , H04B1/406 , H04B1/44
摘要： A circuit system for wireless communications via two antennas. The circuit system includes a printed circuit board having a predetermined area devoid of a solder mask. According to the invention, an antenna switch, filter, and power amplifier are mounted on the printed circuit board within the predetermined area. The antenna switch connects the filter and the power amplifier with the two antennas. The filter blocks unwanted frequency components in an RF receive signal from either of the antennas. A transceiver is responsible for down-converting the RF receive signal a baseband receive signal and up-converting a baseband transmit signal to an RF transmit signal. A first matching network coupled between the filter and the transceiver transforms the RF receive signal from single-ended to differential. Likewise, a second matching network coupled between the transceiver and the power amplifier transforms the RF transmit signal from differential to single-ended.
摘要翻译：一种用于经由两个天线进行无线通信的电路系统。电路系统包括具有没有焊接掩模的预定区域的印刷电路板。根据本发明，天线开关，滤波器和功率放大器安装在预定区域内的印刷电路板上。天线开关用两个天线连接滤波器和功率放大器。滤波器阻止来自任一天线的RF接收信号中的不需要的频率分量。收发器负责将RF接收信号下变频为基带接收信号，并将基带发射信号上变频为RF发射信号。耦合在滤波器和收发器之间的第一匹配网络将RF接收信号从单端到差分转换。同样地，耦合在收发器和功率放大器之间的第二匹配网络将RF发射信号从差分变换为单端。

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