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Application of “bull's eye” corrugated grooves integrated with artificially soft surfaces structure in the patch antenna to improve radiation performance
Author(s) -
Huang Cheng,
Zhao Zeyu,
Luo Xiangang
Publication year - 2009
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.24443
Subject(s) - beamwidth , optics , antenna (radio) , radiation , microwave , patch antenna , ground plane , radiation pattern , engineering , materials science , physics , electrical engineering , telecommunications
In this article, a Bull's eye corrugated structure integrated with artificially soft surfaces structure is proposed as the ground plane in the patch antenna. This structure is based on the modulation of surface wave by the bull's eye corrugated structure and the suppression of surplus surface wave at grounded edge by artificially soft surfaces structure. A numerical investigation for the patch antenna surrounded with combined corrugated grooves ground is presented using finite difference time domain method. The gain of the patch antenna is significantly improved by 12.3 dB, and half power beamwidth in the E and H‐plane are dramatically suppressed. The backward radiation is also reduced by 10 dB, which greatly enhances the Front to Backward (F/B) radiation ratio. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1676–1679, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24443