Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2177643
