Linearly polarised radial stub fed high performance wideband slot antenna

Abstract

A wideband printed slot antenna fed by a radial stub operating over the mobile communication bands PCN (1.716–1.880 GHz) and UMTS (1.9–2.0 GHz and 2.1–2.2 GHz) is presented. The impedance bandwidth of the antenna achieved for a VSWR ≤ 2 is 34% and the radiation patterns remain stable over the entire frequency band of operation (1.7–2.4 GHz) with cross-polarisation levels of less than –20 dB. Simulated and measured radiation pattern and return loss results are presented.