Dielectric Resonator Antennas: Basic Concepts, Design Guidelines, and Recent Developments at Millimeter-Wave Frequencies

<div>Top (a) and cross-sectional view (b) of a rectangular DRA excited by an annular slot.</div>

International Journal of Antennas and Propagation

Figure 23: Dielectric Resonator Antennas: Basic Concepts, Design Guidelines, and Recent Developments at Millimeter-Wave Frequencies 