Full wave analysis of arbitrarily shaped line-fed microstrip antennas using triangular finite-element method

Abstract
A numerical method is developed investigate arbitrarily-shaped line-fed microstrip antennas. The electric integral equation is by adopting the triangular shaped basis element and using the Galerkin procedure. In the integral equation, Sommerfeld-type full wave Green's functions are used. To enhance the computational efficiency, the full wave discrete image technique applied. To examine the method, comparison made between numerical and experimental which show excellent agreement. The experimental error is also discussed.

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