Design of frequency reconfigurable microstrip patch antenna for S-Band and C-Band applications

This paper presents a technique of microstrip patch antenna for S-band and C-band applications. In this proposed work the frequency reconfigurable microstrip patch antenna with three slots on the ground is proposed. In this there are two switches (copper strip) are placed on the slot at the ground plane to produce three different frequency bands at 3.06, 3.26 for (S-Band) and 4.27 GHz(C-Band) respectively. The proposed antenna is simulated using FR-4 substrate with permittivity 4.1 and substrate thickness 1.5 mm. The simulation of the proposed work is conducted with CST. The simulation result shows good directional radiation pattern and the directivity. The simulation result are indicating that the proposed antenna has good impedance matching at every band.