Compact patch antenna with folded patch feed for ultrawideband application

The H shaped patch stacked with an E-H shaped patch antenna configuration with folded patch feed has been designed in this paper. The particular feeding technique, the optimized shape of the patch slots, and the stacked structure made it possible to satisfy VSWR and radiation pattern requirements in the pertinent frequency band of 98% bandwidth covering the frequency range from 3.47 to 10.14 GHz. Despite the small area and thickness, this antenna can be made from copper sheet, so that it is easier to fabricate.