Progress In Electromagnetics Research C
ISSN: 1937-8718
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By M. Y. Abou Shahine, M. Al-Husseini, M. Y. Mervat, and A. El-Hajj

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In this paper, two types of reconfigurable Dielectric Resonator Antennas (DRAs) are presented. The designs are based on rotating a Dielectric Resonator (DR), placed on the patch of the antenna, using a DC stepper motor connected to the DR to reconfigure the notch frequency, in the first, and the resonance frequency in the second design. The attained results are a UWB DRA with a reconfigurable notch in the 3.2-5.1 GHz range that prevents interference to many narrowband systems in this range, and a DRA with a reconfigurable resonance frequency suitable for microwave and WiMAX applications. The characteristics of the designed antennas are investigated using HFSS and experimentally verified. The computed and measured results are in good agreement, and the antennas meet their design criteria.

M. Y. Abou Shahine, M. Al-Husseini, M. Y. Mervat, and A. El-Hajj, "Dielectric Resonator Antennas with Band Rejection and Frequency Reconfigurability," Progress In Electromagnetics Research C, Vol. 46, 101-108, 2014.

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