Spoof Surface Plasmon Excitation of Dielectric Resonator Antennas
This chapter designs a spoof surface plasmon feeding structure for Dielectric Resonator Antennas (DRAs) to excite their prohibited TE modes. These modes are experimentally and numerically demonstrated and their unique features and merits including the reduced thickness-dependency of the resonance frequency and the horizontally polarized omnidirectional radiation are thus verified. Our proposed method opens a vista to find new potential applications of DRAs in antenna designs.
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