Compact and Low Loss Dual-Band Bandpass Filter Using Pseudo-Interdigital Stepped Impedance Resonators for WLANs

Author

Weng, Min-Hang ; Wu, Hung-Wei ; Su, Yan-Kuin

Author_Institution

Nat. Nano Device Labs., Tainan

Volume

17

Issue

3

fYear

2007

fDate

3/1/2007 12:00:00 AM

Firstpage

187

Lastpage

189

Abstract

In this letter, pseudo-interdigital stepped impedance resonators (PI-SIRs) are used to design the bandpass filter (BPF) with dual-band response. By tuning the impedance ratio (K) and physical length of SIRs, the BPF has good dual-passband performances at 2.4/5.2GHz and high isolation between the two passbands. It is shown that the dual-band BPF has a smaller area and lower insertion loss in comparison of previous works. Good agreement is shown between the full-wave electromagnetic simulation and the measurement

Keywords

UHF filters; band-pass filters; electric impedance; microwave filters; resonator filters; wireless LAN; 2.4 GHz; 5.2 GHz; WLAN; compact bandpass filter; dual-band bandpass filter; full-wave electromagnetic simulation; pseudointerdigital stepped impedance resonators; Band pass filters; Circuits; Dual band; GSM; Impedance; Insertion loss; Multiaccess communication; Passband; Resonance; Wireless communication; Bandpass filter (BPF); compact; dual-band; pseudo-interdigital (PI); stepped impedance resonator (SIR);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2006.890463

Filename

4118227