A NOVEL DUAL-BAND PASSBAND FILTER WITH CONTROLLABLE CENTER FREQUENCIES AND BANDWIDTHS

Zhi-Peng Li, Tao Su, Yong-Liang Zhang, Chang-Hong Liang
2013 Progress In Electromagnetics Research Letters  
A high-order dual-band bandpass filter using novel combined stub-loaded resonators (CSLRs) is presented in this paper. The key merits of the filter configuration are that the center frequency and also the bandwidth of each passband can be controlled conveniently. Moreover, it can build the high-order dual-band bandpass filters using the proposed resonators because of the sufficient coupling through the four symmetric stubs. A fifth-order dual-band bandpass filter designed at 2.5/3.5 GHz was
more » ... 2.5/3.5 GHz was built and tested. The measurement and simulation results agree very well, demonstrating the validity of the method.
doi:10.2528/pierl13031915 fatcat:4ojinamp5zhthhq7pqimacxmly