A Novel Clover Shaped Novel UWB Antenna with Filtering Properties

Abstract

A novel printed monopole antenna with multi stop band property is presented. The proposed antenna consists of a clover shape radiating
patch to perform better in lower frequencies and a defected semi ellipse ground plane to have better impedance matching. By carving a slot on the
radiating patch and adding properly designed arms, four stop bands are obtained. Antenna has a compact patch of 24mm (0.19 λ) × 24mm (0.19 λ),
where λ is the wavelength of the lowest frequency of the band (2.4GHz), while showing the band rejection performance in 2.73GHz to 6.06GHz.
Measured impedance bandwidth of the realized antenna is from 2GHz to 16GHz, for VSWR<1.5. Antenna shows a high gain of maximum 7.7 dB
at 3.6GHz and a stable gain over 5GHz to 10GHz.