Optimum Design of Wideband Bandpass Filter With CSRR-Loaded Transmission Line Using Evolution Strategy

Author

Kim, Koon-Tae ; Ko, Jae-Hyeong ; Choi, Kyung ; Kim, Hyeong-Seok

Author_Institution

Sch. of Electr. & Electron. Eng., Chung-Ang Univ., Seoul, South Korea

Volume

48

Issue

2

fYear

2012

Firstpage

811

Lastpage

814

Abstract

In this paper, a planar wideband bandpass filter with complementary split-ring resonator (CSRR)-loaded transmission line is optimally designed taking into account a multi-regional objective function. Eight physical dimensions are set to be design parameters of the filter structure, and the Evolution Strategy (ES) algorithm is adopted to optimize the multi-parameter problem. The result shows that a simple gap capacitance model can make wideband bandpass filter and accomplish the design goal well with smaller size by the proposed optimization technique.

Keywords

band-pass filters; capacitance; circuit optimisation; transmission lines; CSRR-loaded transmission line; capacitance model; complementary split-ring resonator; evolution strategy; evolution strategy algorithm; filter structure; multiregional objective function; optimization technique; planar wideband bandpass filter; wideband bandpass filter optimum design; Capacitance; Equivalent circuits; Insertion loss; Integrated circuit modeling; Optimization; Scattering parameters; Wideband; Complementary split-ring resonator; evolution strategy; optimization; wide bandpass filter;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2177643

Filename

6136493