New 3D Four Constellation High Performance Wideband Choke Ring Antenna

Lennon Bedford, Neil Brown, Justin Walford

Abstract:	This paper introduces the AR25, a new multi constellation Global Navigation Satellite System (GNSS) choke ring antenna for precise geodetic applications. This revolutionary new ‘3D’ choke ring design allows better low elevation satellite tracking while maintaining the renowned performance characteristics of the traditional choke ring antenna such as smooth amplitude and phase pattern, effective multipath rejections and phase centre stability. The AR25 contains a new ultra wideband Dorne-Margolin element to allow for superior reception of all existing and planned GNSS signals, providing users with improved positioning precision and reliability.
Published in:	Proceedings of the 2009 International Technical Meeting of The Institute of Navigation January 26 - 28, 2009 Disney's Paradise Pier Hotel Anaheim, CA
Pages:	829 - 835
Cite this article:	Bedford, Lennon, Brown, Neil, Walford, Justin, "New 3D Four Constellation High Performance Wideband Choke Ring Antenna," Proceedings of the 2009 International Technical Meeting of The Institute of Navigation, Anaheim, CA, January 2009, pp. 829-835.
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