Parametric Study of Slotted Ground Microstrip Patch Antenna

In this paper, the effect of patch and ground reshaping applied to microstrip antenna have been designed, simulated and investigated in details using Finite Integral Technique (FIT) numerical method. The objective is to control the resonance frequency and to enhance the bandwidth of the microstrip antenna as well as to create an additional resonant mode where the overall patch and ground dimensions are kept constant. Three microstrip antenna configurations with a transmission line feed have been proposed and presented, and their simulated results have been investigated and compared. Furthermore, a parametric analysis is also brought out for discussion, so as to provide an insight in the design process. The proposed microstrip antenna structures have been fabricated on FR4-substrate, and their parameters have been measured. Reasonable agreement has been achieved between simulated and measured parameters. The obtained results (simulated and measured) have been verified the validity and the benefits of reshaping the patch geometry and the ground plane configuration. The presented antenna structures can be an excellent choice for LTE, WLAN and WiMax applications due to their small size and simple structure.

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