Reduction of Mutual Coupling in a Microstrip Patch Array Fed by a Triplate Waveguide with EBG Elements

Toru OKAGAKI  Kazuo NAKANO  Yuichi KIMURA  Misao HANEISHI  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E89-C   No.9   pp.1345-1347
Publication Date: 2006/09/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.9.1345
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Metamaterials for Microwave and Millimeter-Wave Applications)
Category: 
Keyword: 
microstrip antenna (MSA),  planar antenna,  electromagnetic band-gap (EBG),  mutual coupling,  triplate waveguide,  

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Summary: 
This letter presents mutual coupling reduction in an E-plane arranged microstrip patch array fed by a triplate waveguide. Five mushroom-like electromagnetic band-gap (EBG) elements arranged in one column are embedded both between two radiating patches and between the feeding lines for suppression of the surface wave and the parallel plate mode, respectively. Validity of the proposed EBG elements is confirmed by the measurement.