A Low-Profile Microstrip-Fed Monopole Antenna with Frequency Selective Surface for C band Satellite Applications

This paper proposes a low profile microstrip-fed circular ring monopole antenna with frequency selective surface (FSS) to achieve high gain and directivity. The FSS unit cell is designed using a square loop with inductive loaded T-shape patch which operates in the extended C-band. The proposed antenna has a dimension of 28×30×1.6 mm3 which is designed on an FR4 substrate and the FSS unit cell size is 7×8×1.6 mm3. The effects of antenna parameters on its performance have been examined through parametric analysis and optimized dimensions are realized. The results demonstrate that the antenna provides improvement in gain and directivity of 2.74 dB and 1.40 dB, respectively over the frequency range of 3.7–4.2 GHz. The low profile, simple geometry and descent gain are the key features of the design and may be a good candidate for satellite down link communication.