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2011-08-03
Dual-Mode CPW-Fed Double Square-Loop Resonators for WLAN and WiMAX Tri-Band Design
By
Progress In Electromagnetics Research C, Vol. 23, 83-93, 2011
Abstract
An improved CPW-fed configurations with dual-mode double-square-ring resonators (DMDSRR) for tri-band application is proposed in this paper. The resonant frequency equations related to DMDSRR geometry are introduced for simply designing tri-band bandpass filter (BPF). Resonant frequencies and transmission zeroes can be controlled by tuning the perimeter ratio of the square rings. To obtain lower insertion loss, higher out-of-band rejection level and wider bandwidth of tri-band, the improved coplanar waveguide (CPW) fed and the step impedance resonator (SIR) and meander line dual-mode perturbations are designed. The effective design procedure is provided. The proposed filter is successfully simulated and measured. It can be applied to WLAN (2.45, 5.20 and 5.80 GHz) and WiMAX (3.50 GHz) systems.
Citation
Chin-Yen Liu Bing-Hao Zeng Ji-Chyun Liu Chih-Chiang Chen Dau-Chyrh Chang , "Dual-Mode CPW-Fed Double Square-Loop Resonators for WLAN and WiMAX Tri-Band Design," Progress In Electromagnetics Research C, Vol. 23, 83-93, 2011.
doi:10.2528/PIERC11070303
http://www.jpier.org/PIERC/pier.php?paper=11070303
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