Compact dual-band bandpass filter using concentric stepped impedance resonator

Author

Pal, Monalisa ; Sarkar, B. ; Sarkar, Pradyut ; Ghatak, Rowdra

Author_Institution

ECE Dept., NSHM Knowledge Campus Durgapur, Durgapur, India

fYear

2012

fDate

17-19 Dec. 2012

Firstpage

1

Lastpage

3

Abstract

A dual band bandpass filter for WLAN and WiMAX application is presented in this paper. The proposed filter is realized using concentric U shaped stepped impedance resonator and inward folded open stub resonator. The center frequencies of the pass band are 2.45 GHz and 3.5 GHz. The insertion loss is about 2 dB and 1.5 dB at first and second passband respectively. Two transmission zeros are introduced to improve the selectivity of the filter one is in between two pass band at 2.9 GHz and another is sight of the second passband at 4.4 GHz. The overall dimension of the filter is 14.9 mm by 18.9 mm.

Keywords

UHF filters; band-pass filters; microwave filters; poles and zeros; resonator filters; wireless LAN; WLAN; WiMAX; compact dual-band bandpass filter; concentric U shaped stepped impedance resonator; concentric stepped impedance resonator; frequency 2.9 GHz; frequency 4.4 GHz; inward folded open stub resonator; pass band filter; transmission zeros; Bandpass filter (BPF); Tri-section stepped impedance resonator (TSSIR) and stub loaded resonator (SLR); dual-band bandpass filter (DB-BPF); stepped impedance resonator (SIR);

fLanguage

English

Publisher

ieee

Conference_Titel

Computers and Devices for Communication (CODEC), 2012 5th International Conference on

Conference_Location

Kolkata

Print_ISBN

978-1-4673-2619-3

Type

conf

DOI

10.1109/CODEC.2012.6509289

Filename

6509289