Design and Analysis of Shorting Pin Loaded Triple Band Microstrip Patch Antenna with Enhanced Gain for Wireless Applications

This work discusses the design of a triple band rectangular microstrip patch antenna (RMSA) with resonating frequencies of 4.56 GHz, 6GHz, and 7.25 GHz. With the use of shorting pin on the reference RMSA triple-band operation is realized. Proper adjustment of the position of the shorting pins provides excellent flexibility in the design. Finally, gain enhancements at all the resonating frequencies are achieved with the embedded slot and optimal placement of a superstrate layer. The obtained realized peak gains at all the resonating frequencies are 6.37 dBi, 6.5 dBi, and 2.13 dBi, respectively. All the characteristics of the designed structure were analyzed using FEM-based Ansys HFSS EM simulator.