Title :
A novel quad-band filter using centrally shorted-stub loaded resonator and stepped impedance resonator
Author :
Sun, Shoujia ; Wu, Bian ; Yang, Shuai ; Deng, Kun ; Liang, Changhong
Author_Institution :
School of Electronic Engineering, Xidian University, Xi´´an, 710071, China
Abstract :
This paper presents a quad-band filter using centrally shorted-stub loaded resonators operated at the first and third passbands and stepped impedance resonators fixed at the second and fourth passbands. A special feed structure consisting of two stepped impedance lines is proposed, and a pair of parallel coupling lines is loaded at the center of the shorted-stub loaded resonators to enhance the couple of the first passband without affecting the third one.
Keywords :
Band pass filters; Feeds; Filtering theory; Impedance; Passband; Resonant frequency; Resonator filters; Quad-band filter; defected ground structure; parallel coupling line; shorted-stub loaded resonator; stepped impedance resonator;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259530
