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CIRCULAR POLARIZED DIELECTRIC RESONATOR ANTENNAS USING A SINGLE PROBE FEED

By A. Malekabadi, M. H. Neshati, and J. Rashed-Mohassel

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Abstract:
In this paper six novel Dielectric Resonator Antennas (DRAs) providing Circular Polarization (CP) using single probe feeds are proposed. By splitting the fundamental mode of conventional rectangular or cylindrical DRAin to two near-degenerate orthogonal resonant modes, CP is obtained. The proposed antennas are numerically investigated using Finite Element Method (FEM). Parametric study on all antennas is carried out. The results show that the impedance bandwidth (S11 < -10 dB) of all reported antennas is in the range of 112-140 MHz. Also, the Axial Ratio bandwidth (AR < 3 dB) range of presented antennas is 28-33 MHz. The investigation shows radiation patterns of all proposed antennas are remaining broadside throughout the bandwidth.

Citation:
A. Malekabadi, M. H. Neshati, and J. Rashed-Mohassel, "Circular Polarized Dielectric Resonator Antennas Using a Single Probe Feed," Progress In Electromagnetics Research C, Vol. 3, 81-94, 2008.
doi:10.2528/PIERC08032903

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