A Pattern Reconfigurable Antenna With Four Switchable Directional Beams Using Characteristic Mode Analysis

In this paper, a pattern reconfigurable antenna with four switchable directional beams operating at 2.1 GHz is proposed. Specifically, the proposed antenna consists of a square annular patch and a circular patch placed at the center of the square slot. Based on the characteristic mode analysis (CMA)...

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Bibliographic Details
Published in2021 Computing, Communications and IoT Applications (ComComAp) pp. 116 - 118
Main Authors Wang, Minqing, Zhang, Long, Xie, Xianting, Chen, Yaling, Li, Wenting, He, Yejun
Format Conference Proceeding
LanguageEnglish
Published IEEE 26.11.2021
Subjects
Antenna feeds
Characteristic mode analysis
Characteristic mode analysis (CMA)
directional antenna
Directive antennas
Internet of Things
reconfigurable antenna
Simulation
Slot antennas
Switches
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Summary:In this paper, a pattern reconfigurable antenna with four switchable directional beams operating at 2.1 GHz is proposed. Specifically, the proposed antenna consists of a square annular patch and a circular patch placed at the center of the square slot. Based on the characteristic mode analysis (CMA), the desired modes can be excited selectively by placing the feeding ports in suitable positions to form a directional beam at a certain angle. Through switching the on/off states of the feeding ports, four directional beams towards different angles can be realized. Simulation results verify that the proposed antenna can generate four switchable beams with the front-to-back ratio larger than 20 dB.
DOI:10.1109/ComComAp53641.2021.9653071