Design a microstrip hairpin band-pass filter for 5GHZ unlicensed WiMAX

Author

Wahab, Norfishah Abd ; Muhamad, Wan Norsyafizan W. ; Hamzah, M.M.A.M. ; Sarnin, S.S. ; Naim, Nani Fadzlina

Author_Institution

Microwave Technol. Centre, Univ. Teknol., Mara, Malaysia

fYear

2010

fDate

11-12 June 2010

Firstpage

183

Lastpage

186

Abstract

In this paper, a design of a microstrip hairpin bandpass filter with center frequency of 5.78 GHz is proposed. The filter is designed to operate within 10% operating bandwidth. CST software is fully utilized to simulate the response of hairpin bandpass filter. It will demonstrate the third order of the Tschebyshev elements. The specified pass band insertion loss must not exceed 3dB while the pass band return loss was to be more than 10dB. The filter was fabricated on RT/Duroid 5870 having a relative permittivity of 2.33, and substrate thickness 0.508mm respectively. The filter characteristics were then measured using Wiltron 562 vector network analyzer. The simulation results show a good agreement.

Keywords

WiMax; band-pass filters; microstrip filters; permittivity; CST software; RT/Duroid 5870; Tschebyshev element; WiMAX; Wiltron 562 vector network analyzer; frequency 5.78 GHz; microstrip hairpin band-pass filter; pass band insertion loss; pass band return loss; relative permittivity; substrate thickness; Band pass filters; Microstrip filters; WiMAX; Hairpin resonator; bandpass filter; insertion loss; microstrip; return loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Networking and Information Technology (ICNIT), 2010 International Conference on

Conference_Location

Manila

Print_ISBN

978-1-4244-7579-7

Electronic_ISBN

978-1-4244-7578-0

Type

conf

DOI

10.1109/ICNIT.2010.5508533

Filename

5508533