Abstract

A novel dual-band dielectric resonator antenna(DRA) with dual-polarization is presented in this paper. It consists of a dielectric resonator, a square ground and a well designed feeding network. This antenna makes use of HEM111 mode and HEM113 mode to realize dual-band characteristics. Dual polarization is realized by exciting two orthogonal ports, and the port isolation is better than 65dB over the band of interest. For each port, the −10 dB impedance bandwidth of the lower and upper bands are given by 1.83–1.99GHz and 2.58–2.63GHz respectively. It can also achieve a peak gain of 6.5dB at the upper hemisphere for both modes.

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