Abstract

This paper presents a rectangular antenna with a dual-band notch for Ultra-Wideband (UWB) applications. The antenna in this configuration has a surface area of 22×34 mm2. A single rectangular split ring resonator (SRR) is etched on the radiation patch element of the UWB antenna to create the first notch band with a resonant frequency of 3.508 GHz to cancel and eliminate the interference with WiMAX and 5G applications. The second notch band with a resonant frequency of 5.213 GHz, is created by inserting two C-shaped parasitic elements around the feedline of the system to cancel the interference with WLAN applications. The impedance bandwidth of the proposed antenna is (2.87–up to 12) GHz, which ensures coverage of UWB. The realized gain value is more than 3.9 dB over the entire UWB range, but it decreases below -2.3 and -8.5 dB within the first and second notch bands, respectively. The result indicated that the presented antenna has a good radiation properties and an omnidirectional radiation pattern that is appropriate for portable devices. Moreover, the experimental measurement results of the fabricated antenna are in good agreement with the simulation results.

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