Wideband and high-gain triple-offsets-fed ring-slot antenna backed by a ground plane

✍ Scribed by Yong-Woong Jang; Hiroyuki Arai

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 132 KB
• Volume: 41
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.20079

✦ Synopsis

Abstract

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