In past few years, microstrip antennas are highly in demand due to their utilization high frequency and high speed data communication applications. Microstrip antennas are efficient and can easily be accommodated in the device package. Due to their light weight, low profile, low cost, ease to analyze, easy fabrication and compatibility with the integrated circuits, they are found to be the best form of antennas. They are utilized in rectangular, triangular and circular shapes. Transformation of designs laws for feed line of rectangular and triangular patch antennas has already been validated by the authors. This work aims to validate the transformation of Design formulae for Circular and Elliptical patch antennas. Transformation of design laws are based on the
'Equivalence Design Concept' which says that the two designs are said to be equivalent if they result in the same resonance frequency. The simulation results for the circular and elliptical patch antennas are remarkably similar when calculated by the same transformation laws.
Microstrip antenna, circular patch, elliptical patch, transformation of design, equivalence of design concept