Title :
An X-band passive reflect-array using dual-feed aperture-coupled patch antennas
Author :
Robinson, Ashley W. ; Bialkowski, Marek E. ; Song, Hyok J.
Author_Institution :
Filtronic Components Australia, Murarrie, Qld., Australia
Abstract :
The design, development and testing of an X-band 137 element passive reflect-array capable of incorporating active devices such as transistor amplifiers is presented. In order to avoid grating lobes in the radiation pattern, the inter-element spacing is minimised using dual-feed aperture coupled patch antenna elements. Far-field radiation pattern results are presented and compared with the predicted radiation patterns. Problems associated with phase errors, which contribute to the rise of sidelobes, are investigated
Keywords :
antenna radiation patterns; aperture antennas; microstrip antenna arrays; planar antenna arrays; reflector antenna feeds; X-band passive reflect-array; active reflect-array; dual-feed aperture-coupled patch antennas; far-field radiation patterns; minimised inter-element spacing; phase errors; planar reflector; Antenna radiation patterns; Australia; Circuits; Directive antennas; Feeds; Gratings; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Reflector antennas;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.833741
