| 摘要 |
<p>A standing wave ratio measuring circuit includes an amplifier circuit (110) amplifying a transmission signal; a first circulator (120) outputting the transmission signal amplified in a direction of an antenna (190), and outputting a reception signal received by the antenna to a reception system; a traveling wave bypass (140) allowing the transmission signal (the traveling wave), before being input to the amplifier circuit (110), to travel to the reception system while bypassing the amplifier circuit when a request to measure a standing wave ratio is detected; a second circulator (150) outputting the traveling wave bypassing the amplifier circuit in a direction of the first circulator (120); a control unit (160) controlling the amplifier circuit (110); a reflected wave acquiring unit (170) acquiring a reflected wave at a location after the second circulator (150) in the reception system; and a measuring circuit (180) measuring the standing wave ratio using the traveling wave and the reflected wave.</p> |
