Circularly polarized rectangular dielectric resonator antenna with metallic strips load for WLAN application
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Date
2022
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Publisher
John Wiley and Sons Inc
Abstract
This article presents a circularly polarized rectangular dielectric resonator antenna (CP RDRA) loaded with metallic strips. The dielectric resonator (DR) with metallic strips on the top surface is excited by a slot aperture feed that excites two orthogonal modes to provide circular polarization. The proposed CP RDRA does not require any complex-shaped dielectric resonator and simplifies the overall design. A prototype of the proposed antenna has been fabricated and validated. It has measured impedance bandwidth between 4.8 and 5.6 GHz and 3 dB axial ratio bandwidth between 5.1 and 5.43 GHz. The axial ratio beamwidth of more than 155° in the XZ and YZ planes is obtained. © 2022 Wiley Periodicals LLC.
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Keywords
Bandwidth, Dielectric resonators, Electric impedance, Microwave antennas, Microwave filters, Wireless local area networks (WLAN), Axial ratio, Circularly-polarized, Degenerative mode rectangular dielectric resonator antenna, Dielectric-resonator antennas, Metallic strips, Rectangular dielectric resonators, Slot aperture, Strip loads, Top surface, WLAN applications, Circular polarization
Citation
Microwave and Optical Technology Letters, 2022, 64, 8, pp. 1407-1411