A Compact Open Slot Antenna for UWB Applications with Band-Notched Characteristic

Abstract

A compact open slot antenna for ultra-wideband (UWB) applications with band-notched function is presented and investigated. To achieve partial band cutoff, two symmetrical slits are used. Ultra wideband performance is obtained by introducing a stepped strip. A prototype of the proposed antenna is fabricated and its performance is simulated and measured. The measured results show that the antenna of 26.5 mm× 12 mm × 1.5 mm dimensions sufficiently covers the band of UWB from 2.95 GHz to more than 12 GHz excluding the rejection band from 5.1 GHz to 6.0 GHz. The antenna also shows stable gain and constant group delay across the UWB band.