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初步制作了一个跟踪调相信号的微波锁相环路。由于环路能提供足够的功率输出,具有较宽的速频带,而需要的微波输入功率却很小,可把环路看作一级调相信号功率放大噐。分析了实际工作中遇到的一些问题,如环路对调相信号的频率响应、通频带、以及反馈电路中的过量时延对这些性能的影响等问题,导出了调制基带信号通过环路的(?)时延表示式。也讨论了环路对噪声、干扰的抑制性能。研制的微波调制跟踪锁相环路的性能初步达到了设计要求。
A microwave phase-locked loop was initially fabricated to track the phase-modulated signal. Because the loop can provide sufficient power output, with a wide frequency band, and the required microwave input power is very small, the loop can be regarded as a phase modulation signal power amplifier. Some problems encountered in the practical work are analyzed, such as the frequency response of the phase-modulated signal to the loop, the passband, and the influence of excessive delay in the feedback circuit on these performances. The modulation baseband signal is derived from the ?) Delay expression. Also discussed the ring on the noise, interference suppression performance. Developed microwave modulation tracking phase-locked loop performance of the initial meet the design requirements.