STACKED U SLOT MICROSTRIP PATCH ANTENNA FOR BANDWIDTH ENHANCEMENT

Juliet Joju M, Sanish V S, Stephen Rodrigues

Abstract: In this modern wireless communication, the demand for microstrip patch antennas with larger bandwidth has been increased. These antennas are suitable for broadband wireless communication because of their advantages like low profile, ease of fabrication, easiness in the design of dual frequency and dual polarization antennas etc. But conventional Microstrip patch antennas have two major limitations that are low gain and narrow bandwidth (3-6%) of central frequency. This can be eliminated by using different enhancement techniques. In this paper, stacked multi layered configuration and patch geometry modifications like slots on the patch are used for bandwidth enhancement. The software used for the simulation and analysis is CST microwave studio suite which is user friendly software. S11 parameter, axial ratio, VSWR, directivity and gain are used for the analysis of designed structure. Axial ratio less than 3 dB shows that the antenna is circularly polarized. This proposed antenna is suitable for WiMax, Wi-Fi, Bluetooth, RFID etc.

Keywords: Broadband, Stacked Configuration, Patch Antenna, Circular Polarization, Slots, CST Microwave Studio Suite

DOI: https://doi.org/10.15623/ijret.2016.0505099