Broadband U-shaped dielectric resonator antenna with elliptical patch feed

Abstract

A dielectric resonator antenna formed by a U-shaped dielectric resonator and a conformal elliptical patch feed is proposed for wideband communication applications. Simulated results agree well with measured ones, showing good performance in terms of bandwidth and radiation patterns. The measured impedance bandwidth of S11≤−10 dB is about 72%, covering the frequency range 3.82–8.12 GHz. It has a gain of 4.3–7.6 dBi over the whole operating band with a ground size of about 1.2 λ0×1.2 λ0, λ0 being the central operating frequency.