Methods to excite circularly polarized waves for a quad-unit

✍ Scribed by The Nan Chang

• Book ID: 102518806
• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 434 KB
• Volume: 49
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.22749

✦ Synopsis

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.22749