Triple Band Notched UWB Antenna

Abstract

An Ultra Wideband (UWB) monopole antenna having small surface area consisting of a modified polygon shape with three notched bands is designed. Impedance bandwidth of almost 16.9 GHz (3.1-20 GHz) is obtained by introducing a rectangular slot in partial ground plane. The interfering Wi-MAX (from 3.3 to 3.8 GHz), WLAN (from 5 to 6 GHz) and satellite uplink (X band) communication (from 7.9 to 8.4 GHz) frequencies are eliminated by introducing T-, U- and spiral slots in the microstrip line-fed monopole radiator. The total chip size of proposed UWB antenna is 17×24 mm2 and its peak gain is 5.9 dB at 10.3 GHz.