Communication
Version 1
This version is not peer-reviewed
Dual-Band Antenna With Pattern and Polarization Diversity
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Version 1
: Received: 4 July 2024 / Approved: 4 July 2024 / Online: 5 July 2024 (02:50:09 CEST)
How to cite: Mo, J.; Sung, Y. Dual-Band Antenna With Pattern and Polarization Diversity. Preprints 2024, 2024070470. https://doi.org/10.20944/preprints202407.0470.v1 Mo, J.; Sung, Y. Dual-Band Antenna With Pattern and Polarization Diversity. Preprints 2024, 2024070470. https://doi.org/10.20944/preprints202407.0470.v1
Abstract
In this letter, we propose a pattern-diversity antenna with different radiation patterns at two different frequency bands (f1 and f2) (f1: broadside radiation pattern, f2: conical radiation pattern). The proposed structure consists of a central circular antenna and two annular ring antennas; each of the three antennas has individual ports. Two of the ports exhibit orthogonal broadside radiation patterns; the other two ports exhibit orthogonal conical radiation patterns. Thus, they have polarization diversity characteristics. To improve isolation between ports, the inner part of the annular ring antennas is shorted via array, and the outermost port is positioned orthogonal to the other ports. Using this configuration, the isolation between ports was measured as -26.7 dB and -30.1 dB at the two frequency bands, respectively. Experimental results based on the fabricated prototype show that the proposed antenna achieves -10 dB bandwidths of 240 MHz (5.71~5.95 GHz) and 210 MHz (7.69~7.9 GHz) at f1 and f2, respectively.
Keywords
High isolation; Pattern-diversity antenna; Polarization diversity
Subject
Engineering, Electrical and Electronic Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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