DocumentCode :
12168
Title :
Author :
Qing-Xin Chu ; Xiao Ouyang ; Huan Wang ; Fu-Chang Chen
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
Volume :
61
Issue :
3
fYear :
2013
fDate :
Mar-13
Firstpage :
1086
Lastpage :
1094
Abstract :
A method to design TE01δ-mode dielectric-resonator (DR) filters with transmission zeros is proposed. The feeding probes, extended along ring DRs, are used to excite the TE01δ mode and introduce transmission zeros. By rotating the angle of the feeding position, transmission zeros can be shifted to the lower or the upper stopband. Thus, TE01δ-mode DR filters with quasi-elliptic responses are realized with only iris coupling components. Based on this method, second- and fourth-order filters with different responses are designed and fabricated. Measured results confirm the predicted performance.
Keywords :
dielectric resonator filters; TE01δ-mode DR filters; TE01δ-mode dielectric-resonator filter design; feeding position; feeding probes; fourth-order filter; iris coupling component; quasielliptic responses; second-order filter; transmission zeros; Cavity resonators; Couplings; Dielectrics; Filtering theory; Iris; Probes; Tuning; ${rm TE}_{01delta}$
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.2013.2238551
Filename :
6412740
Link To Document :
