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Frequency characteristics of electromagnetic bandgap structure with bow‐tie cells and its optimal design based on particle swarm optimization
Author(s) -
YuBo Tian,
Yue Dong,
ZhiBin Xie,
Sha Sha,
Tao Peng
Publication year - 2013
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.21792
Subject(s) - photonic crystal , particle swarm optimization , passband , microwave , bandwidth (computing) , band gap , stopband , metamaterial , bow tie , optoelectronics , frequency band , computer science , materials science , electronic engineering , physics , engineering , telecommunications , band pass filter , algorithm , resonator , antenna (radio)
The electromagnetic bandgap (EBG) structure, which is widely used in the microwave and millimeter‐wave fields, is a kind of photonic crystal. An EBG structure with bow‐tie cells having different tapered forms is presented in this paper. Furthermore, the EBG structure is optimized by using an improved particle swarm optimization algorithm. The optimal results show that the optimized EBG structure with bow‐tie cells has a good stop‐band performance and large relative bandwidth. The passband ripples of the EBG structure are very small and basically symmetrical. The frequency characteristic of the optimized EBG structure is found to be excellent. © 2012 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.