发明名称 |
Apparatus for transmit and receive switching in a time-division duplexing wireless network |
摘要 |
A transmit-receive (T/R) switch for coupling a TDD transceiver to an antenna. The T/R switch comprises 1) a first circulator having a first port for receiving a transmit signal from the transceiver during transmit mode, a second port for sending the transmit signal to the antenna during transmit mode and receiving a received signal from the antenna during receive mode, and a third port for sending the received signal towards the transceiver during receive mode. The T/R switch further comprises 2) a second circulator having a first port for receiving the received signal from the third port of the first circulator during receive mode and a second port for sending the received signal towards the transceiver during receive mode, and 3) a termination load coupled to a third port of the second circulator. The circulators divert RF energy reflected from the antenna during transmit mode into the termination load.
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申请公布号 |
US7373115(B2) |
申请公布日期 |
2008.05.13 |
申请号 |
US20050079754 |
申请日期 |
2005.03.14 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
MONROE ROBERT W. |
分类号 |
H04B1/46;H01P1/15;H01Q11/12;H04B1/04;H04B1/44;H04B1/48 |
主分类号 |
H04B1/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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