A Scheme to Design a Multiband Circularly Polarized Inverted L-Patch Antenna

Authors:

Parikshit Vasisht (Apeejay Stya University, Gurgaon)

Keywords: Circular polarization, Inverted-L, Microstrip Antenna, VSWR, Axial Ratio.

Abstract:

This paper presents a scheme to design a novel single feed inverted L-patch circularly polarized, Microstrip patch antenna for RADAR communication, {V-LAN, point to point and multipoint wireless communication. The proposed antenna fed by 50.12 impedance thin microstrip line occupies a compact volume of 34x34x0.5081nm3, a small variation in the slot was done (inverted L- shape). Proposed design shows multiband inverted L slot patch antenna characteristics for different center frequencies, and antenna offers a 2:1 VSWR bandwidth <5%(10.047-10.906) at Slid" -10 a at center frequency of 10.204 GHz. Circular polarization is brought about by embedding a slit and by chamfering the diagonal edges of the patch. The software used for the simulation is the CST Microwave Studio which is an analytical tool that provides an accurate 3D EM simulation results for high frequency design.