DocumentCode
1300617
Title
Dual-band bandpass filter with source-load coupling
Author
Gao, Smith ; Xiao, Z.-Y. ; Chen, Wen-Feng
Author_Institution
Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China
Volume
45
Issue
17
fYear
2009
Firstpage
894
Lastpage
895
Abstract
A compact dual-band bandpass filter is presented for wireless LAN applications. Using two centrally-loaded stepped-impedance resonators, the second passband frequency can be conveniently tuned. Two transmission zeros are generated between the two passbands because of source-loading coupling topology. Simulated results show that two central frequencies are located at desired 2.4 and 5.7 GHz with 3 dB fractional bandwidths of 18.8 and 7.1 , respectively. Comparison of measured and simulated results shows good agreement.
Keywords
band-pass filters; wireless LAN; bandpass filter; compact filter; dual-band filter; source-load coupling; stepped-impedance resonators; transmission zeros; wireless LAN;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2009.1656
Filename
5207537
Link To Document