Study on Supression Methods of Spurious Band of Microwave Filters 微波滤波器寄生通带的抑制方法研究
This paper analyzes phase noise of digit PLL frequency synthesizer in detail, emphasises design of low phase and spurious PLL ′ s loop filter with control theory, and the viewpoint has been testified with results of S band synthesizer. 较详细地分析数字锁相频率合成器的相位噪声,着重用控制论方法对低相噪、低杂波锁相环的环路滤波器进行设计,并用某S波段频率合成器的实验结果进行了验证。
Methods of phase equalizing, temperature compensating, impedance equalizing and spurious band suppression are proposed to improve the receiving performance of radar. 提出相应的相位均衡、温度补偿、阻抗均衡及寄生通带抑制等电路提高雷达接收性能。
In addition, also it in detail discusses the SIR principle, basic structure, the resonance conditions and spurious band design method. 此外,也详细介绍了阶梯阻抗谐振器(SIR)的原理、基本结构、谐振条件和寄生通带设计方法。