微波无线电通信系统的研究

Study on Microwave Components of Wireless Communication System

随着通信技术的不断发展,无线电技术中的微波有源、无源部件的研究对于提高卫星通信系统以及雷达系统的性能具有非常重要的意义。本文主要围绕无线电收发信机中的微波有源、无源部件,结合微带传输线理论提出了抑制杂波的SIR电容藕合微带带通滤波器结构,详细分析了SIR谐振器结构通过调整谐振器的阻抗比实现杂波频率控制的机理,给出了SIR电容藕合带通滤波器的仿真结果。

With the development of communication technology, it becomes very valuable to study on microwave active and passive components in wireless technology as excellent to enhance the capability of satellite communication systems or radar system. Based on the study for the spurious suppression technology of microstrip bandpass filter,a capacitive coupled Stepped Impedance Resonators（SIR） microstrip passband filter is proposed, the principle that spurious center frequency can be controlled by adjusting the SIR impedance ratio are analyzed and the results of passband filter simulation is given.