| 摘要 |
PURPOSE:To obtain a circulator with detector of low cost with simple structure by mounting a detector comprising a diode coupled with an inner conductor and a high frequency blocking capacitor in a case forming a coaxial circulator. CONSTITUTION:The diode 21 is placed in parallel near the inner conductor 2 of the coaxial circulator 1 to couple the diode 21 with the inner conductor 2. One terminal of the diode 21 is connected to a dummy terminal device 27 mounted to the case 50 and an output terminal of the diode 21 is connected to the high frequency blocking capacitor 22 mounted in the case 50. Then a detection signal is extracted from an output terminal 22A of the capacitor 22. Thus, the number of input/output coaxial connectors connected to an external circuit is halved in comparison with a conventional number and number of components is less to offer low cost.
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