Compact dual-band bandpass filter using complementary hook-shaped resonators for WLAN applications
Title:
Compact dual-band bandpass filter using complementary hook-shaped resonators for WLAN applications
Author:
Zhang, Z. Jiao, Y.C. Weng, Z.-B. Wang, X.-M.
Appeared in:
International journal of applied electromagnetics and mechanics
Paging:
Volume 47 (2014) nr. 2 pages 381-387
Year:
2014-10-15
Contents:
Based on the double resonant properties of the complementary hook-shaped resonator (CHSR), a novel miniaturized dual-band microstrip filter is proposed for WLAN operations. The filter, which is only 0.067 λ_0 × 0.084 λ_0 in overall dimensions, is composed of two opposite CHSRs and modified T-shaped feed-lines. Two hook-shaped strips generate two respective passbands, independently. The proposed filter is found to have two transmission zeros around the high resonances for improved selectivity. To verify the proposed method, a dual-band filter is implemented and measured, and the measurement results agree well with the simulated data.