Performance Analysis of Microstrip Antenna with Several Feed Networks for Satellite Communication

Abstract

The modern wireless communication systems demand significantly higher bandwidth with a highly directive antenna for better performance. For this purpose, the feed networks such as Series Feed (SF), Corporate Feed (CF), and Corporate-Series Feed Network (CSFN) in the design of antennas play a vital role. Therefore, in this paper, rectangular microstrip antennas with inner ring slot, two semi-circular slots on both sides of the microstrip, and two director elements have been designed. The proposed antennas in four sets with different shapes for satellite communication operate at the Ku-band frequency. In this design, copper (annealed) has been used as material for the ground plane. The substrate material of this proposed antenna is Rogers RT5880, with a dielectric constant at 2.2. Moreover, the probe feed technique has been used in this antenna, further followed by SF, CF, and CSFN networks. The presented design is simple, compact, and very economical with optimal gain and bandwidth. The structure parameters of this proposed antenna are numerically computed. The antenna features are simulated by CST Microwave Studio, a commercial simulator based on finite integration techniques that support the numerical analysis. Further, the antenna performances based on the considered feeding techniques of the proposed antenna have been compared.