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Design of Dual-Band Bandpass Filter with Quasi-Elliptic Function Response for WLANs
Min-Hang WENG Hung-Wei WU Kevin SHU Ru-Yuan YANG Yan-Kuin SU
IEICE TRANSACTIONS on Electronics
Publication Date: 2007/01/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwaves, Millimeter-Waves
dual-band, step-impedance resonators (SIRs), transmission zeros,
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Novel dual-band bandpass filter (BPF) with quasi-elliptic function response by using the meander coupled step-impedance resonators (SIRs) is presented. By tuning the appropriate impedance ratio (K) and physical length of SIRs, the BPF has good dual-band performance at 2.4 and 5.2 GHz with high selectivity, due to the transmission zeros appeared in two passband edges. Measured results of the proposed BPF have a good agreement with the electromagnetic (EM) simulated results.