Design and analysis of a compact CPW-fed triple band notched printed monopole antenna for UWB application

Abstract

This paper presents the design of a compact planar monopole antenna with triple band notched characteristics. The inverted U type slot in the patch results in rejection band centered at 5.5 GHz. A hairpin slot in the feed line leads to good suppression at 6.8 GHz and rejection band centered at 8.1 GHz is obtained by etching out incomplete inverted C type slots. The peak gain obtained is 4.3 dBi. The group delay shows a flat response lying within Ins except at the notch frequencies.

A compact CPW‐fed UWB antenna with quadruple rejected bands

“…In recent years, many researches have been done to realize UWB band‐notched antennas. Firstly, cutting slot technique is used, such as step‐shaped, Ω‐shaped, or modified U‐shaped etched on the radiating patch; U‐shaped, L‐shaped, or inverted U‐shaped etched on the ground plane; and ring‐shaped slots etched on the feed line . Secondly, band‐notched functions can be obtained by utilizing tuning stubs on the patch or ground plane .…”