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High gain cavity‐backed slot antenna with a windowed metallic superstrate
Author(s) -
Hanqing M. A.,
Chu QingXin,
Qiuyi Zhang
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.23880
Subject(s) - antenna gain , high gain antenna , microwave , radiation pattern , slot antenna , bandwidth (computing) , antenna (radio) , antenna measurement , center frequency , radiation , engineering , materials science , acoustics , antenna factor , electrical engineering , optoelectronics , electronic engineering , optics , physics , telecommunications , band pass filter
A novel technique for gain enhancement of cavity‐backed slot antenna is developed and discussed. The high gain radiation of the proposed antenna is achieved by a windowed metallic superstrate above the slot. The parametric studies of the proposed structure are provided, the radiation mechanism of the proposed antenna is investigated, and then the design guidelines for this type of radiators are described. The prototype is fabricated and found to have an impedance bandwidth of 12% and a gain of 12.3 dBi at the center frequency of 2.4 GHz. The characteristics of the proposed antenna have been validated by CST simulation software and experiments. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3114–3118, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23880