A FAST TUNING METHOD FOR MICROWAVE FILTER USING VF-ASM TECHNOLOGY

Yong-Liang Zhang, Tao Su, Zhi-Peng Li, Chang-Hong Liang
2013 Progress In Electromagnetics Research M  
A novel microwave filter tuning method based on vector fitting and aggressive space mapping (VF-ASM) technology is presented in this paper. The filter tuning is performed as a two step procedure. First, the equivalent circuit parameters are extracted through vector fitting method by a series of S-parameter measurements. Second, the optimal screw positions are calculated through ASM techniques. this novel tuning technique has been tested successfully with cross-coupled six-resonator and direct
more » ... onator and direct coupled eightresonator filters.
doi:10.2528/pierm13012201 fatcat:2lo4k7hrvrbcbc5xcah2q5gtym