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Progress In Electromagnetics Research M
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DEMINIATURIZED MODE CONTROL RECTANGULAR DIELECTRIC RESONATOR ANTENNA

By R. Gupta and A. Vaish

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Abstract:
A modified feed line Wideband Circularly Polarized Dielectric Resonator Antenna (CPDRA) operating at 24 GHz is proposed in this paper. Deminiaturisation of design is achieved by operating antenna at higher order mode TE117. The antenna structure consists of a rectangular DRA with three rectangular slots. One at the centre and other two inclined orthogonally with respect to centre slot. The bottom surface of substrate contains the modified feed structure in which two stubs of the same dimensions are connected orthogonally to main microstrip line to provide a phase difference of an odd multiple of λ/2 for circular polarization. DRA with excitation through modified aperture coupled feed structure provides the simulated and measured impedance bandwidths of 16.28% (22-25.9 GHz) and 15.06% (22.1-25.7) GHz. The antenna provides the simulated and measured gains of 8.4 dB and 7.9 dB. The antenna is deminiaturised by 61% by operating antenna at higher order mode. The designed antenna has potential for millimeter wave and 5G applications.

Citation:
R. Gupta and A. Vaish, "Deminiaturized Mode Control Rectangular Dielectric Resonator Antenna," Progress In Electromagnetics Research M, Vol. 86, 173-182, 2016.
doi:10.2528/PIERM19091204

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