专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2005112286A3 WIRELESS TRANSCEIVER AND METHOD OF OPERATING THE SAME 审中-公开
标题翻译：无线收发器及其操作方法
公开(公告)号：WO2005112286A3
公开(公告)日：2007-03-15
申请号：PCT/US2005008174
申请日：2005-03-11
申请人： FREESCALE SEMICONDUCTOR INC , HUYNH PHUONG T , MCCORKLE JOHN W , HIDALGO FERNANDO N
发明人： HUYNH PHUONG T , MCCORKLE JOHN W , HIDALGO FERNANDO N
IPC分类号： H04B1/44 , H04B1/02 , H04B1/46 , H04B7/00
CPC分类号： H04B1/44
摘要： A transceiver (400) is provided in an ultrawide bandwidth device, which includes an antenna (110), a transmitter circuit (145), and a receiver circuit (165). A transmitter amplifier (440) is provided between the antenna (110 ) and the transmitter circuit (145), and is configured to have an operational transmitter output impedance when the transceiver (400) is in a transmit mode and an isolation transmitter output impedance when the transceiver (400) is in a receive mode. A receiver amplifier (460) is provided. between the antenna (110) and the receiver circuit (165), and is configured to have an operational receiver input impedance when the transceiver (400) is in a receive mode and an isolation receiver input impedance when the transceiver (400) is in a transmit mode. The isolation transmitter output impedance is greater than the operational receiver input impedance, and the isolation receiver input impedance is greater than the operational transmitter output impedance. Thus, a transmitter and receiver can be isolated without using a transmit/receive switch.
摘要翻译：收发器（400）设置在包括天线（110），发射机电路（145）和接收机电路（165）的超宽带宽设备中。发射机放大器（440）设置在天线（110）和发射机电路（145）之间，并且被配置为当收发器（400）处于发射模式时具有操作发射机输出阻抗，并且隔离发射机输出阻抗，当收发器（400）处于接收模式。提供接收机放大器（460）。在天线（110）和接收器电路（165）之间，并且被配置为当收发器（400）处于接收模式时具有操作接收器输入阻抗，并且当收发器（400）处于接收模式传输模式。隔离变送器输出阻抗大于操作接收器输入阻抗，隔离接收器输入阻抗大于工作变送器输出阻抗。因此，发射机和接收机可以被隔离而不使用发射/接收开关。

IPRDB

热门服务

关于我们

友情链接

联系方式