Band Rejection Characteristics Of Spline Based Compact UltraWideband Antenna

Abstract

A compact planar spline based ultra wideband antenna is proposed in this paper. The antenna is compact
with overall substrate dimension of 25x25x1mm. The antenna is printed on FR4 epoxy substrate and is fed by
microstrip line feeding. The antenna operates from 3.1 to 11.5 GHz rejecting two band of 5.2 GHz to 6.7 GHz and
7.2 GHz to 7.5 GHz. The performance related to return loss, VSWR, current density and gain of the antenna are
investigated using ANSYS HFSS.