Mathematical Analysis of Commonly Used Feeding Techniques in Rectangular Microstrip Patch Antenna

Abstract

In the presentedwork, different feeding techniques are employed to design microstrip patch antenna for wireless applications. These feeding techniques are as follows: microstrip inset feed, quarter wavelength feed, and coaxial probe feed. Parameters valuated for comparing these feeding techniques are: return loss, directivity, gain, and radiation efficiency. In the presented work, it is observed that by using coaxial probe feed, the values achieved for maximum directivity and gain are 5.43 dBi and 5.33 dB, respectively.