Comparison of Several Novel Annular-Ring Microstrip Patch Antennas for Circular Polarization

TitleComparison of Several Novel Annular-Ring Microstrip Patch Antennas for Circular Polarization
Publication TypeJournal Article
Year of Publication2006
AuthorsBao, XL, Ammann, MJ
Journal TitleJournal of Electromagnetic Waves & Applications
Volume20
Issue11
Pagination1427-1438
Journal Date11/2006
Abstract

Several novel compact circularly-polarized probe-fed annular-ring microstrip patch antennas are examined experimentally and numerically. In order to reduce the antenna size and provide a suitable input impedance match, two techniques are employed; the insertion of strips into the annular ring and placing a cross-slot into the ground plane. The proposed annular-ring patch with a cross-slotted ground plane yields a much smaller size for a given frequency. This novel patch antenna can effectively be reduced by about 55 percent in size compared to conventional annular-ring patch antennas. The antenna displays wide bandwidth and good circular polarization characteristics. The results of a parametric study for three novel strip-loaded annular-ring patch antennas and for the compact circular patch antenna augmented by a narrow annular ring with a cross-slotted ground plane are discussed in this paper.

URLhttp://www.tandfonline.com/doi/abs/10.1163/156939306779274336?journalCode=tewa20#.VNicdPmsVp4
DOI10.1163/156939306779274336
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