Telecommunications – Transmitter – Measuring – testing – or monitoring of transmitter
Patent
1994-03-11
1995-04-18
Wieder, Kenneth A.
Telecommunications
Transmitter
Measuring, testing, or monitoring of transmitter
455123, 333 172, 330207P, 324646, H04B 104
Patent
active
054086906
ABSTRACT:
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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Ishikawa Youhei
Wada Hidekazu
Yamashita Sadao
Murata Mfg. Co. Ltd.
Solis Jose M.
Wieder Kenneth A.
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