Biconvex patch antenna with circular slot for 10 GHz application

In this paper the Rotman Lens structure with some perturbation has been implemented as the patch which resembles the biconvex lens shape. The design of the two arcs of the Rotman lens has been modified with reference to certain equations. The Simulation has been done with the help of HFSS software. To enhance the band width, the circular slot has been implemented in the patch. The substrate of the dimension 80mm×80 mm with the dielectric material FR4 epoxy is taken. The simulation results have been analyzed for the frequency 10GHz which is the solution frequency which lies in the X band (8GHz-12 GHz) which is used for NJFA, satellite communication and military applications. After simulation the parameters like VSWR, S
₁₁
, Gain and Directivity were found out. The results are in good agreement with the desired value. At last the conclusion was made with a brief perception of the future scope.