Title :
Receiving Antennas for the Navstar Global Positioning System
Author_Institution :
Department of Communications, Communications Research Centre, Shirley Bay, P.O. Box 11490, Station H, Ottawa, Ontario, Canada, K2H 8S2
Abstract :
Two new types of shaped beam antennas have been designed and developed for reception of signals from satellites operating in the NAVSTAR Global Positioning System. The antennas are required, to provide a circularly polarized 2¿ steradian coverage. To achieve the required radiation pattern, arrays of scattering elements are used to shape the pattern of a cavity-backed planar spiral. This paper describes the antennas and their principles of operation, and presents their measured radiation patterns.
Keywords :
Antenna measurements; Antenna radiation patterns; Directional antennas; Global Positioning System; Polarization; Receiving antennas; Satellites; Scattering; Signal design; Spirals;
Conference_Titel :
Microwave Conference, 1979. 9th European
Conference_Location :
Brighton, UK
DOI :
10.1109/EUMA.1979.332687
