发明名称 |
Antenna supervising apparatus comprising a standing wave ratio measuring unit |
摘要 |
In an antenna supervising apparatus for supplying a multiplexed signal comprised of a plurality of carrier wave signals respectively outputted from a plurality of transmitters through a transmission line to an antenna, a directional coupler detects progressive signals of the multiplexed signal to the antenna and the reflected signals thereof from the antenna, and a band-pass filter respectively filters the progressive signal and the reflected signal of one carrier wave signal preselected among those of the detected multiplexed signal. Further, a detector respectively detects the filtered progressive signal and the filtered reflected signal of the one carrier wave signal, and a micro processing unit calculates a standing wave ratio with respect to the preselected one carrier wave signal based on the detected signals.
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申请公布号 |
US5408690(A) |
申请公布日期 |
1995.04.18 |
申请号 |
US19940212428 |
申请日期 |
1994.03.11 |
申请人 |
MURATA MFG. CO., LTD. |
发明人 |
ISHIKAWA, YOUHEI;YAMASHITA, SADAO;WADA, HIDEKAZU |
分类号 |
G01R27/06;(IPC1-7):H04B1/04 |
主分类号 |
G01R27/06 |
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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