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A POLARIZATION RECONFIGURABLE CYLINDRICAL DIELECTRIC RESONATOR ANTENNA

By L. Zhong

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Abstract:
A reconfigurable cylindrical dielectric resonator antenna with polarization diversity is proposed for S-band and C-band in this paper. An annular slot is used as the feeding aperture, which can not only excite two orthogonal modes (HEMx11δ and HEMy11δ) of the cylindrical dielectric resonator at 3.2 GHz, but also produce a 90˚ phase difference. Two switches, whose locations are carefully optimized, are used to control HEMx11δ being a phase-lagging or phase-leading component. Thus the antenna can achieve either left- or right-hand circular polarization (LHCP or RHCP) in S band, depending on the switch states. The higher order mode of HEM21δ is also excited at 4.7 GHz for linear polarization (LP), regardless of the switch states. With the advantages of compact structure, simple biasing network and easy fabrication, this antenna can be widely applied to wireless communication systems, especially for polarization diversity applications.

Citation:
L. Zhong, "A Polarization Reconfigurable Cylindrical Dielectric Resonator Antenna," Progress In Electromagnetics Research M, Vol. 93, 1-9, 2020.
doi:10.2528/PIERM20040804

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