New 3D Four Constellation High Performance Wideband Choke Ring Antenna

摘要

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.