TRANSDUCER DEVICE

PROBLEM TO BE SOLVED: To extract power for monitoring the presence/absence of radio wave without attenuating power of a radio wave to pass when sending a radio wave that is outputted from a transmitter, from an antenna.SOLUTION: A transducer device 1-1 comprises: a radio wave entry port 25 to which...

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Bibliographische Detailangaben
Hauptverfasser: SUZUKI KENJI, KATO TAKASHI, KONNO YASUMASA, OGIKUBO RIKIYA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To extract power for monitoring the presence/absence of radio wave without attenuating power of a radio wave to pass when sending a radio wave that is outputted from a transmitter, from an antenna.SOLUTION: A transducer device 1-1 comprises: a radio wave entry port 25 to which a coaxial cable 3 is connected; a flange part 10 to which a waveguide 4 is connected; and a main body part 13 with which a hollow portion 27 for propagating a radio wave from the radio wave entry port 25 to a radio wave exit port 26 is formed. The main body part 13 includes an extraction member 20 with which an extraction hole 21 is formed, at a position facing the radio wave exit port 26. Thus, in a path for guiding a radio wave that is inputted from the radio wave entry port 25 to the radio wave exit port 26, the extraction hole 21 is provided in a radio wave stagnation location, thereby taking a part of power that is stagnated and becomes a loss, out of the extraction hole 21.SELECTED DRAWING: Figure 3 【課題】送信機から出力された電波が空中線から送出される際に、通過する電波の電力を減衰させることなく、電波の有無を監視するための電力を取り出す。【解決手段】トランスデューサー装置1−1は、同軸ケーブル3が接続される電波進入口25と、導波管4が接続されるフランジ部10と、電波進入口25から電波退出口26へ電波を伝搬させる中空部27が形成された本体部13とを備え、本体部13には、電波退出口26に対向する位置に、取出穴21が形成された取出部材20を備える。これにより、電波進入口25から入力した電波を電波退出口26へ誘導する経路において、取出穴21を電波の滞留箇所に備えるようにしたから、滞留してロスとなる電力の一部を取出穴21から取り出すことができる。【選択図】図3