Optimization of microstrip dual-band filter with implicit space mapping algorithm

Author

Zhang, Guoxi ; Zhao, HuiLing

Author_Institution

Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an, China

fYear

2011

fDate

14-16 Sept. 2011

Firstpage

1

Lastpage

3

Abstract

An effective optimization scheme based on improved implicit space mapping (ISM) algorithm is presented in this paper for the first time to design microstrip dual-band bandpass filters with high performance. The 2.45GHz/5.7GHz and 3.5 GHz/5.25GHz dual-band filters using folded open-loop ring resonators (OLRRs) are implemented with satisfying passband and stopband response. The overall size of the previous filter is 17mm×8mm, nearly one-third smaller than the literature result 26mm×8mm, and the capability is also better. The latter one is 18mm×8mm, both are applicable for miniaturization system.

Keywords

UHF filters; band-pass filters; band-stop filters; microstrip filters; microwave filters; optimisation; ISM algorithm; folded OLRR; folded open-loop ring resonator; frequency 2.45 GHz; frequency 3.5 GHz; frequency 5.25 GHz; frequency 5.7 GHz; implicit space mapping algorithm; microstrip dual-band bandpass filter; optimization scheme; stopband filter; Band pass filters; Dual band; Filtering algorithms; Filtering theory; Microwave filters; Optimization; Resonator filters; dual-band filter; improved implicit space mapping algorithm; optimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4577-0893-0

Type

conf

DOI

10.1109/ICSPCC.2011.6061747

Filename

6061747