Accurate Synthesis Model for Microstrip Antennas with Automatic Choice of the Shape Versus Physical and Geometrical Criteria

An accurate synthesis model applied to multilayer probe-fed microstrip antennas, is presented. An appropriate and original use of a symbolic algebra system and a modified Wolff cavity model allow to obtain, with a low computing time, the optimal size and the shape of the antenna, with its uncertainty, versus the physical and geometrical parameters, necessary to a good approach. The numerical and experimental results for different synthesis are shown and discussed.