发明授权
US08325632B2 Multi-channel radio frequency front end circuit with full receive diversity for multi-path mitigation
有权
多通道射频前端电路,具有完全接收分集的多路径缓解功能
- 专利标题: Multi-channel radio frequency front end circuit with full receive diversity for multi-path mitigation
- 专利标题(中): 多通道射频前端电路,具有完全接收分集的多路径缓解功能
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申请号: US12498905申请日: 2009-07-07
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公开(公告)号: US08325632B2公开(公告)日: 2012-12-04
- 发明人: Oleksandr Gorbachov
- 申请人: Oleksandr Gorbachov
- 申请人地址: US CA Irvine
- 专利权人: RFaxis, Inc.
- 当前专利权人: RFaxis, Inc.
- 当前专利权人地址: US CA Irvine
- 代理机构: Stetina Brunda Garred & Brucker
- 主分类号: H04J3/00
- IPC分类号: H04J3/00 ; H04B1/38 ; H04B1/44 ; H01Q21/00
摘要:
A front end circuit for coupling a plurality of antennas to a multi-channel time domain duplex RF transceiver is disclosed. The front end circuit has a first transmit port, a first receive chain primary port, a first receive chain secondary ports, and a first antenna port connectible to a first one of the plurality of antennas. The front end circuit also has a second transmit port, a second receive chain primary port, and a second receive chain secondary port connectible to a second one of the plurality of antennas. A first switch has terminals connected to the first transmit port, the first receive chain primary port, and the second receive chain secondary port, as well as a common terminal that is connected to the first antenna port. Additionally, the front end circuit has a second switch that has terminals connected to the second transmit port, the second receive chain primary port and the first receive chain secondary port, and a common terminal connected to the second antenna port.