Title :
Electronic beam steering using switched parasitic patch elements
Author :
Preston, S.L. ; Thiel, D.V. ; Lu, J.W. ; O´Keefe, S.G. ; Bird, T.S.
Author_Institution :
Radio Sci. Lab., Griffith Univ., Nathan, Qld., Australia
fDate :
1/2/1997 12:00:00 AM
Abstract :
A new technique is presented demonstrating the use of switched parasitic elements in electronic beam steering applications. Experimental and theoretical results are presented for a linearly polarised five element steerable patch antenna array operating at 1.55 GHz. Shorted parasitic elements have been used to steer the beam in two directions for tracking polar orbiting satellites. The minimum gain of the system for elevation angles >20° above the horizon is -1.5 dBi in the forward direction
Keywords :
antenna radiation patterns; microstrip antenna arrays; 1.55 GHz; electronic beam steering; linearly polarised patch antenna array; polar orbiting satellite tracking; switched parasitic elements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970048
