本文主要介绍磁控管在失谐状态下(雷达在脉冲间歇时)短路面位置的确定。其方法是测出磁控管的“冷”热频率,再使“冷”热频差等于谐振频率与测量频率之差,从而求得测量频率,在该频率下测定短路面位置。此方法确定的短路面位置与传统的谐振状态下确定的短路面位置显著不同。由于短路面位置准确的测定,因而使雷达接收机灵敏度得到提高。 This article describes the magnetron in the detuning state (radar pulse in the intermittent) short circuit to determine the location. The method is to measure the “cold” thermal frequency of the magnetron, and then make the “cold” thermal frequency difference equal to the difference between the resonant frequency and the measured frequency so as to obtain the measured frequency at which the location of the short-circuited surface is determined. The short-circuit position determined by this method is significantly different from the short-circuit position determined by the traditional resonance. Due to the accurate determination of the location of the short circuit, the sensitivity of the radar receiver is improved.