Abstract :
A switchable cylindrical dielectric resonator antenna operating in four different radiation modes is reported. Two linear polarised, one circular polarised, and a nonradiating mode are implemented. The experimental results of the resonant frequency, boresight axial ratio, gain, unloaded Q-factor, impedance bandwidth and radiation efficiency are presented for the operating modes and compared with the theoretical values
Keywords :
Q-factor; antenna feeds; dielectric resonators; electromagnetic wave polarisation; losses; microwave antennas; boresight axial ratio; circular polarised mode; dielectric resonator antenna; gain; impedance bandwidth; linear polarised mode; nonradiating mode; radiation efficiency; radiation modes; resonant frequency; switchable cylindrical DR antenna; unloaded Q-factor;
