A Cylindrical Dielectric Resonator Antenna for Wireless Body Area Networks
نویسنده
چکیده
In this paper, a hybrid dual-band cylindrical dielectric resonator antenna with parasitic slot fed by a microstrip line that is suitable for wireless body area network is proposed. In this configuration, the dielectric resonator performs the functions of an effective radiator along with the feeding structure and the slot in the ground plane. By optimizing the structural parameters, the antenna is made to resonate at two different frequencies; one is from the dielectric resonator antenna (DRA) and the other from the parasitic slot. The design involves a dielectric resonator with the resonant frequency of 2.4 GHz (Industrial, Scientific and Medical) and a parasitic slot with a resonant frequency of 403 MHz (Medical Implantable Communication Service). The physical and geometrical parameters of these elements are tuned to obtain the desired performance parameters. In order to determine the performance of the proposed antenna, functional parameters such as return loss, bandwidth, voltage standing wave ratio (VSWR), and radiation pattern are observed by the simulation of the structure with high frequency structure simulator (HFSS). Keywords— Ceramic dielectric material, dielectric resonator antenna (DRA), dual band operation, microstrip feedline.
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