关键词: 交指型微带滤波器, 终端短路式, 宽带

Abstract:

The basic principles of Interdigital microstrip bandpass filter are expounded.Then a brief example of designing a broad-band filter with the frequency from 7.0 to 10.3 GHz is proposed by using Agilent ADS and Ansoft HFSS.An FBW of 38.2% with low insertion and high isolation is achieved.The filter is fabricated,and the simulated and measured results are found to be in acceptable agreement with each other.

Key words: interdigital microstrip filter;terminal short type;broad band