Bandwidth Enhancement of Compact Printed Super Wide Band Antenna with Space Filling Slots for Microwave Applications

Abstract

A Compact miniaturized monopole super wide band (SWB) antenna has been originated and simulated using electromagnetic computational HFSS simulation tool. The Designed antenna is printed on Rogers RT / Duroid 5880 (tm) dielectric material having a dielectric permittivity of 2.2 & its thickness is 0.5mm. Proposed antenna composed of a radiating patch having space filling slots and a 50Ω triangle tapered microstrip feedline. Impedance bandwidth ranges from 18.81 to 64.09GHz at reflection coefficient < -10dB and fractional bandwidth of 171.51%. Simulated gain varies up to 6dBi and its radiation efficiency over the operating band is 88 – 99%. The designed SWB antenna has wide bandwidth, proper impedance matching, good gain, smaller in size and high radiation efficiency compared to earlier reported models. The presented antenna can be employed for K –band (18 – 27GHz), Ka – band (27 – 40GHz) and some of the applications adopted from V – band (40 – 75GHz) applications.