Dual-Band Low Profile Notched Printed UWB Monopole Antenna with Enhanced Bandwidth

Abstract

A planar monopole antenna with enhanced bandwidth and dual-band notching is proposed. The presented UWB monopole antenna is consisting of modified square patch loaded with inverted U-slot to reject WLAN frequencies in the range of 5.15–5.35 and 5.725–5.825 GHz. The ground surface of designed antenna is made up of two L-shaped and two C-shaped slots for achieving wide impedance bandwidth. The rejection of the WiMAX frequencies operating at 3.5 and 5.8 GHz is realized by extruding a C-shaped stub from the modified ground surface. The radiating square plane of the proposed structure is also loaded with six small symmetric shaped square slots for making antenna operable in the 2.4 GHz Bluetooth band. The antenna structure proposed operates from 2.3 GHz to 19.4 GHz band by creating additional resonance even at upper frequencies. The optimization of designed antenna is conducted using FEM based tool Ansys HFSS and found simulated outcomes in a decent match with measured.