DocumentCode
3485403
Title
Design of Compact Dual-Band Bandpass Filter Using λ/4 Resonators
Author
Chu, Qing-Xin ; Ye, Liang-Hua ; Chen, Fu-Chang
Author_Institution
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou
fYear
2008
fDate
16-20 Dec. 2008
Firstpage
1
Lastpage
4
Abstract
In this paper, a simple and effective method using two sets of lambda/4 resonators for designing dual-band filter has been investigated, and a practical filter has been fabricated, which provides two passbands at 2.4 and 5.2 GHz for WLAN application. The dual-passband characteristics are generated by adjusting the physical dimension of the top and bottom lambda/4 resonators. The bandwidth of each passband could be controlled independently by tuning the coupling gap. The measured insertion losses are 1.1 dB and 1.8 dB and the return losses are 24 dB and 20 dB at 2.4 and 5.2 GHz, respectively.
Keywords
UHF filters; band-pass filters; microwave filters; wireless LAN; WLAN application; compact dual-band bandpass filter; coupling gap; frequency 2.4 GHz; frequency 5.2 GHz; insertion losses; passband filter; resonators; tuning; Band pass filters; Bandwidth; Costs; Dual band; Frequency; Impedance; Insertion loss; Passband; Resonator filters; Wireless LAN;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location
Macau
Print_ISBN
978-1-4244-2641-6
Electronic_ISBN
978-1-4244-2642-3
Type
conf
DOI
10.1109/APMC.2008.4958234
Filename
4958234
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