Abstract: A multiband cylindrical dielectric resonator antenna (CDRA) is proposed to access WLAN, WiMAX and Bluetooth application. The dielectric resonator antenna is fed by T-shaped microstrip line. The dielectric resonator with a dielectric constant of 12 is used and embedded with FR4 epoxy with relative permittivity 4.4. The partial ground plane produces wide impedance bandwidth and high efficiency on operating bands. The proposed antenna has three resonating bands of 1.44-2.66 GHz, 2.92-3.92GHz, 4.45-5.36GHz and corresponding impedance bandwidth is 59%,29% and 18% for WLAN, WiMAX and Bluetooth applications.
Keyword: -Cylindrical dielectric resonator antenna, multiband omnidirectional radiation, partial ground.
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