For a Hemispherical Dielectric Resonator Antenna, the impedance offered [1], at the input port is given by the following equation:
A half Hemispherical Dielectric Resonator Antenna with an array of slots has been proposed and investigated.
Ghosh, "Inclined slot coupled hemispherical dielectric resonator antenna," Microwave and Optical Technology Letters, Vol.
Chakrabarty, "Rectangular waveguide fed hemispherical dielectric resonator antenna," Progress In Electromagnetic Research, Vol.
Chen, "Analysis of a broadband hemispherical dielectric resonator antenna with a dielectric coating," Microwave and Optical Technology Letters, Vol.
Chen, "Analysis of a hemispherical dielectric resonator antenna with an air gap," IEEE Microwave and Guided Wave Letters, Vol.
