COMPUTER-AIDED-DESIGN OF PROBE-FED AND APERTURE-COUPLED RECTANGULAR MICROSTRIP ANTENNAS

This article describes a method for analysis and design of rectangular microstrip antennas coupled to a microstrip feed line in a two-layer configuration using either a probe or a small aperture. The technique is based on the cavity model and, thus is numerically efficient, making it suitable for computer-aided design. The analysis takes into account higher order modes excited underneath the patch. Analysis results were implemented in two computer programs: an analysis program and a design program based on optimization techniques. Experimental results are presented to validate this method. (C) 1993 John Wiley & Sons, Inc.