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

Volume

42

Issue

7

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

905

Lastpage

911

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;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.299591

Filename

299591