No abstract

A new method for the computation of input impedance of an annular ring microstrip antenna, fed electromagnetically by a microstrip line, and operating in its fundamental mode is presented. The method based on cavity model in conjunction with circuit theory is compared with simulation (IE3D TM ) and measurement based results. It is shown that this method of computation leads to accurate prediction of impedance for such structures with minimum of computational complexity, thereby making it an attractive tool for accurate and quick design estimate for many applications.

No abstract

A new method for impedance of an annular patch loaded by multiple posts is presented using extended cavity model. The post is loaded away from the centre of the ring. The input impedance for dominant mode is calculated with this method and compared with the measured and simulated results. For the simulation IE3D software is used based on method of moment. Downloaded by [Michigan State University] at 09:57 26 December 2014 1334 Mahajan et al.

No abstract