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A multifunctional compact pattern reconfigurable antenna with Four radiation patterns for sub-GHz IoT applications

Saeed A. Haydhah, Fabien Ferrero, Leonardo Lizzi, Mohammad S. Sharawi and Azzedine Zerguine

Article (2021)

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Abstract

A compact pattern reconfigurable antenna with four radiation patterns is proposed for sub-GHz IoT applications. The antenna has two functional modes; Mode I has three uncorrelated patterns, while Mode II has electric and magnetic omnidirectional patterns. The resonant frequency of the antenna is 868 MHz with measured overlapped −6 dB impedance-bandwidths of 22 MHz and 20 MHz for Mode I and Mode II, respectively. The antenna is integrated in an 80×55 mm2 terminal. The radiating elements consist of two meandered slots and one meandered monopole. Four pattern configurations are obtained with an average peak gain of 0 dBi, and an average radiation efficiency of 43.3%. Two of the patterns are with 5 dB directivity, and the other two are omnidirectional patterns. Pattern reconfigurability is achieved using four PIN diodes. The antenna is fabricated on a low-cost FR-4 substrate. By removing FR-4 material inside the slots, slots’ radiation efficiencies were improved by 2.25 dB.

Uncontrolled Keywords

Reconfigurable antennas, IoT, pattern reconfigurable antenna, slot antennas, UHF

Subjects: 2500 Electrical and electronic engineering > 2500 Electrical and electronic engineering
2500 Electrical and electronic engineering > 2511 Antennas and propagation
Department: Department of Electrical Engineering
Research Center: POLY-GRAMES - Advanced Research Centre in Microwaves and Space Electronics
Funders: French Government, National Research Agency (ANR) - UCA JEDI Investments in the Future Project
Grant number: ANR-15-IDEX-0001
PolyPublie URL: https://publications.polymtl.ca/9335/
Journal Title: IEEE Open Journal of Antennas and Propagation (vol. 2)
Publisher: IEEE
DOI: 10.1109/ojap.2021.3078236
Official URL: https://doi.org/10.1109/ojap.2021.3078236
Date Deposited: 16 Aug 2023 11:18
Last Modified: 08 Apr 2024 22:04
Cite in APA 7: Haydhah, S. A., Ferrero, F., Lizzi, L., Sharawi, M. S., & Zerguine, A. (2021). A multifunctional compact pattern reconfigurable antenna with Four radiation patterns for sub-GHz IoT applications. IEEE Open Journal of Antennas and Propagation, 2, 613-622. https://doi.org/10.1109/ojap.2021.3078236

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