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An effective equivalent circuit model of slotted ground structures under planar microstrip
Author(s) -
Wu HungWei,
Weng MinHang,
Su YanKuin,
Yang RuYuan,
Ye ChangSin
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23779
Subject(s) - microstrip , planar , microwave , equivalent circuit , transformer , engineering , topology (electrical circuits) , electronic engineering , coupling (piping) , physics , electrical engineering , optoelectronics , telecommunications , computer science , voltage , mechanical engineering , computer graphics (images)
This letter presents a effective equivalent circuit model of circular slotted ground structure (SGS) under a planar microstrip, which can be used as a kind of periodic structure. The circular SGS exhibits an electromagnetic band gap or stop band in frequency responses. The proposed equivalent circuit model consists of lumped elements which can be demonstrated as a transformer to model coupling between the microstrip line and the circular SGS. Excellent agreement with electromagnetic (EM), extracted circuit simulations, and measurements is demonstrated. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2651–2653, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23779