Title :
Analysis of a choke ring groundplane for multipath control in Global Positioning System (GPS) applications
Author :
Tranquilla, James M. ; Carr, J.P. ; Al-rizzo, Hussain M.
Author_Institution :
Radiating Syst. Res. Lab., New Brunswick Univ., Fredericton, NB, Canada
fDate :
7/1/1994 12:00:00 AM
Abstract :
In this paper a computational scheme is presented for accurately predicting the farfield amplitude and phase characteristics of Global Positioning System (GPS) antennas flush-mounted to a corrugated groundplane. The algorithm developed is particularly well-suited in beamshaping of (GPS) antennas in order to provide a high level of multipath rejection. The usefulness of the analytical model has been verified by the excellent agreement achieved between experimental data and predicted amplitude and phase patterns
Keywords :
antenna earths; antenna radiation patterns; antenna testing; inductors; radionavigation; satellite antennas; satellite relay systems; GPS antennas; Global Positioning System; algorithm; amplitude patterns; analytical model; beamshaping; choke ring groundplane; corrugated groundplane; far-field amplitude characteristics; far-field phase characteristics; multipath control; multipath rejection; phase patterns; Analytical models; Control systems; Corrugated surfaces; Global Positioning System; Inductors; Optical reflection; Satellite antennas; Satellite ground stations; Satellite navigation systems; Space vehicles;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
