ABSTRACT
A microstrip antenna design is based on sound scientific principle, but it also retains a significant component of intuitive understanding and a creative problem-solving approach that can only come from experience. A CAD software package should require little preprocessing and be able to predict, efficiently and accurately, all the characteristics of a given practical antenna configuration. For multi-feed antennas or multiple patch array configurations, it is important for the software to model rigorously the mutual coupling effects as well. “Full-wave” may be used to describe finite difference time domain or finite element solutions, but most of the full-wave analyses of microstrip antennas have been the moment method solutions using the exact Green’s function for the dielectric substrate. The spectral analysis approach has many applications and is also widely used in microstrip antennas and feed networks. The analytical formula of the radiation pattern for the covered microstrip patch antenna is very useful.
