A Semi-Elliptic Slot Antenna for Ultra Wide Band Systems

M. Gopikrishna, D.D. Krishna, and C.K. Aanandan (India)

Keywords

Slot antenna, Ultra Wide Band, Coplanar Wave Guide

Abstract

The design and characterization of a printed semi elliptic slot antenna with wide impedance bandwidth is presented in this paper. The antenna comprises of a semi-elliptic patch and a modified ground which is designed to give an impedance bandwidth from 2.85 20 GHz for S11 less than -10dB. The structure is more compact compared to other slot antennas having the same electrical characteristics. Experiments indicate omnidirectional radiation with appreciable gain throughout the Ultra Wide Band (UWB) 3.1-10.6 GHz. Empirical relations for the resonances in the antenna is also presented in this paper. Transient analysis indicates good pulse handling capabilities.

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