Abstract
A compact dielectric resonator antenna for ultrawideband vehicular communication applications is proposed. Two cylindrical dielectric resonators are asymmetrically located with respect to the center of an offset rectangular coupling aperture, through which they are fed. Optimizing the design parameters results in an impedance bandwidth of 21%, covering the range from 5.9 to 7.32 GHz in the lower band and a 53% relative bandwidth from 8.72 to 15 GHz in the upper band. The maximum achieved gain is 12 dBi. Design details of the proposed antenna and the results of both simulations and experiment are presented and discussed.
Highlights
Antenna applications for vehicular communications have attracted much interest in the last decade [1,2,3]
A microstrip patch antenna with defected ground structure was used for cross polarization suppression in [4], in [5] to improve polarization purity, and in [6] to reduce mutual coupling between two CDRAs
A new technique to excite a higher order radiating mode for CDR was demonstrated in [7], and recently a dual band CDRA employing two hybrid modes excited by a new composite aperture was illustrated in [8]
Summary
Chemseddine; Lashab, Mohamed; Sayad, D.; Elfergani, Issa T.; Sayidmarie, Khalil H.; Benabdelaziz, F.; Abd-Alhameed, Raed A.; Rodriguez, Jonathan; Noras, James M. Zebiri C-E, Lashab M, Sayad D et al (2017) Offset ApertureCoupled Double-Cylinder Dielectric Resonator Antenna with Extended Wideband. This work is made available online in accordance with publisher policies. Access to the published online version may require a subscription. Accepted to IEEE Trans on Antennas and Propagations, Aug 2017. Abstract—A compact dielectric resonator antenna for ultrawideband vehicular communication applications is proposed. Two cylindrical dielectric resonators are asymmetrically located with respect to the center of an offset rectangular coupling aperture, through which they are fed. The maximum achieved gain is 12 dBi. Design details of the proposed antenna and the results of both simulations and experiment are presented and discussed
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