DocumentCode
33154
Title
Miniaturised dual-band bandpass filter using modified SIR
Author
Yuxia Mo ; Kaijun Song ; Pan Tao ; Yong Fan
Author_Institution
EHF Key Lab. of Sci., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Volume
49
Issue
14
fYear
2013
fDate
July 4 2013
Firstpage
888
Lastpage
890
Abstract
A novel miniaturised dual-band bandpass filter using a single modified stepped impedance resonator (SIR) is presented. Some different shaped slots cutting on the middle patch of the SIR are adopted to improve the return loss in the two passbands and control the resonant frequencies. Meanwhile, the impedance ratio can be changed by changing L or W to tune the resonant frequencies. To improve the selectivity and achieve a high out-of-band rejection, source-load coupling is utilised. The simulated and measured results are presented and show good agreement.
Keywords
band-pass filters; resonator filters; high out-of-band rejection; impedance ratio; miniaturised dual-band bandpass filter; modified SIR; resonant frequencies; return loss improvement; selectivity improvement; shaped slots; single modified stepped impedance resonator; source-load coupling;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2013.0869
Filename
6557258
Link To Document