Title :
A Novel Microstrip Filter Using Three-Mode Stepped Impedance Resonator (TSIR)
Author :
Shen, Wei ; Sun, Xiao-Wei ; Yin, Wen-Yan
Author_Institution :
Center for Microwave & RF Technol., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A novel microstrip filter using three-mode stepped impedance resonator (TSIR) is presented, with its coupling scheme given so as to accurately predict its desired performance. A T-type open stub is introduced into the design of a miniaturized TSIR. It is shown that the developed filter exhibits quasi-elliptic characteristics with sharp skirt and wide stopband. Good agreements are obtained between its measured and simulated S-parameters.
Keywords :
S-parameters; microstrip filters; resonator filters; S parameters; coupling scheme; microstrip filter; three mode stepped impedance resonator; Couplings; Filtering theory; Frequency; Impedance; Microstrip filters; Microstrip resonators; Optical resonators; Resonator filters; Scattering parameters; Transmission line matrix methods; Filter; S-parameters; quasi-elliptic; three-mode stepped impedance resonator (TSIR); wide stopband;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2009.2033495
