Circularly polarized rectangular dielectric resonator antenna with elliptical aperture feed for 5 GHz ISM band
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Date
2021
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Publisher
John Wiley and Sons Inc
Abstract
In this article, a new elliptical slot aperture feed circularly polarized (CP) rectangular dielectric resonator antenna (RDRA) has been proposed. The nonresonant slot excites two spatially orthogonal resonant frequencies in RDRA to produce CP waves. TEx<inf>111</inf> and TEy<inf>111</inf> are the orthogonal modes produced by the 450 inclined elliptical slot with respect to microstrip feed. Also, the sense of polarization at the resonance frequencies can be controlled by changing the orientation of the slot. The antenna performances in terms of impedance bandwidth, 3-dB axial ratio, and gain are validated experimentally. The proposed antenna can be used in 5 GHz ISM band for WiFi/satellite communications. © 2021 Wiley Periodicals LLC.
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Keywords
Antenna feeders, Circular polarization, Dielectric resonators, Electric impedance, Microwave filters, Natural frequencies, Slot antennas, Antenna performance, Circularly polarized, Impedance bandwidths, Microstrip feed, Orthogonal modes, Rectangular dielectric resonator antennas, Rectangular dielectric resonator antennas (RDRA), Resonance frequencies, Microwave antennas
Citation
International Journal of RF and Microwave Computer-Aided Engineering, 2021, 31, 12, pp. -