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High‐impedance surface‐based square loop antenna with RF‐absorber
Author(s) -
Deo Prafulla,
Mehta Amit,
MirshekarSyahkal Dariush,
Massey Peter J.,
Nakano Hisamatsu
Publication year - 2011
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.25777
Subject(s) - loop antenna , antenna measurement , antenna tuner , antenna (radio) , optics , antenna factor , electrical impedance , microwave , coaxial antenna , acoustics , electrical engineering , engineering , materials science , electronic engineering , dipole antenna , physics , telecommunications
A beam steerable square loop antenna is presented over a high impedance surface with RF‐absorber. For a test frequency of 5.0 GHz, the proposed antenna is 4.69‐mm thick and has an impedance bandwidth of 700 MHz and a gain of 7.93 dB. When compared with a recent published steerable square loop antenna over hybrid high impedance surface, the new antenna offers near equivalent performance but with a much simpler design and a cheaper fabrication process. The absorber's permittivity is found to control the antenna's beam tilt and sidelobe level. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:481–485, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25777
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