Design and Comparative Analysis of Rectangular and Square Log Periodic Array Microstrip Patch Antenna

Abstract

This paper described the design, simulation and comparative analysis of inset feed seven elements log periodic microstrip antenna at 2.5-3.5 GHz with the aide of Agilent (ADS2009).The antennas were modeled using microstrip lines, the S and 3D parameters data for both shapes were compared. The data is extracted from the momentum simulation. The properties of the antennas such as return loss, gain, efficiency, power radiated, cross polarization and the beam width have been investigated and compared with each other. A gain of 3.47dB using square over the gain of 2.8dB for rectangular, directivity of 7.44dB to 7.90dB, efficiency of 34 to 36 and resonant frequency of 2.75GHz and 3.35GHz respectively.