Rectangular patch antenna array design at 13GHz frequency using HFSS

This paper presents a new element antenna array of rectangular topology microstrip patches is introduced to operate at Ku Band. The antenna has been designed as an arrays of patches, where number of elements, spacing´s and feeding currents has been optimized to fulfil the requirements of low side lobe level and good cross polarization. The operating frequency range of antenna array is from 12 to 18 GHz. The antenna has been designed and simulated on FR4 Substrate with dielectric constant of 4.4. This paper also presents that, the detail steps of designing and simulating the rectangular patch antenna and rectangular patch antenna Array, in Ku-band. The design is analysed by Finite Element Method (FEM) based HFSS Simulator Software 14.0 by which return loss, Impedance, 3D polar plot, Directivity and Gain of the antenna are computed. The simulated results are shows that the proposed antenna provides good performance in terms of return loss and radiation pattern for dual frequency applications.