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Wideband and high‐gain triple‐offsets‐fed ring‐slot antenna backed by a ground plane
Author(s) -
Jang YongWoong,
Arai Hiroyuki
Publication year - 2004
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.20079
Subject(s) - ground plane , wideband , radiation pattern , antenna gain , return loss , bandwidth (computing) , microwave , electrical engineering , radiation , optics , physics , engineering , antenna (radio) , antenna efficiency , telecommunications
The triple‐offsets‐fed ring‐slot antenna backed by a ground plane with large bandwidth and high gain is presented experimentally in this paper. The return loss, radiation pattern, and antenna gain of this configuration are presented. Although the use of a high relative permittivity (ε r = 4.3) substrate usually restricts the operation bandwidth, the radiation resistance has a low value, as well. The measured impedance bandwidth is approximately 94.3% (−10 dB ≥ S 11 ). The measured gain of the proposed antenna backed by a ground plane is better than approximately 6 dBi throughout the bandwidth. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 41: 161–163, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20079