Design of Wide Band Patch Antenna with DGS L Structure

In this paper we design and fabricate a compact probe-fed Rectangular Microstrip Patch Antenna working in the S-band (2-4 Ghz) part of the microwave band of the electromagnetic spectrum. The size of the antenna increases if the operating frequency is decreased. The aim is to reduce the operating frequency of the antenna keeping the size constant and being compact. The effect of antenna dimensions Length (L), and substrate parameters, relative Dielectric constant (r), substrate thickness (t) on the Return Loss, Bandwidth, operating frequency are analysed. For designing and analysing purpose electromagnetic simulator IE3D software is used. The S band is used by weather radar, surface ship radar, and some communications satellites, especially those used by NASA to communicate with the Space Shuttle and the International Space Station.