Methods to excite circularly polarized waves for a quad‐unit
- 27 July 2007
- journal article
- research article
- Published by Wiley in Microwave and Optical Technology Letters
- Vol. 49 (10) , 2372-2375
- https://doi.org/10.1002/mop.22749
Abstract
In this article, techniques to generate circularly polarized waves for a quad‐unit are investigated. The quad‐unit is offset‐fed by an open rectangular ring. It has been shown that both 3‐dB axial ratio and 10‐dB return loss bandwidths can be achieved up to 11%. With a large ring, we have a stable maximum beam at the bore‐sight direction. In experiments, it can provide a gain of 7 dBic at 5.5 GHz. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2372–2375, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22749Keywords
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