DocumentCode
1537690
Title
Compact dual-band bandpass filter with improved stopband characteristics
Author
Wei, X.B. ; Shi, Y. ; Wang, Peng ; Liao, J.X. ; Xu, Z.Q. ; Yang, B.C.
Author_Institution
Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Volume
48
Issue
12
fYear
2012
Firstpage
704
Lastpage
705
Abstract
A compact dual-band bandpass filter with an improved stopband using short-circuit centred stepped impedance resonators (SCSIRs) is presented. The proposed filter consists of two SCSIRs, one of which is embedded in the other one to obtain two passbands. Multiple transmission zeros can be generated by the proposed SCSIR for high passband selectivity and upper wide stopband bandwidth. The centre frequencies and bandwidths of the two passbands can be controlled by adjusting the geometric dimensions of the SCSIRs, respectively. A 2.4/5.2 GHz dual-band experimental BPF has been designed and fabricated to demonstrate the proposed method.
Keywords
UHF filters; band-pass filters; band-stop filters; microwave filters; resonator filters; compact dual-band bandpass filter; passband selectivity; short-circuit centred stepped impedance resonator; stopband characteristics;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2012.1107
Filename
6215312
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