Huygens Source Antenna using Stacked Dielectric Resonators

In this paper, an antenna made of two dielectric resonators is proposed to realize a Huygens source in linear polarization. The goal is to design an antenna with a radiation pattern oriented in one half-space without the use of ground plane. The principle relies on the combination of two collocated electric and magnetic dipoles at the center frequency of 2.42 GHz. The optimization of the antenna dimensions is performed with numerical analysis using far-field simulations in ANSYS HFSS. As a result, the antenna achieves a front-to-back ratio of 41 dB.