A compact single-layer tri-band directional antenna for Wi-Fi 6/6E applications
- 1Faculty of Electrical and Electronic Engineering, PHENIKAA School of Engineering, PHENIKAA University, Hanoi, Vietnam
- 2Faculty of Electrical and Electronics Engineering, Hanoi Open University, Hanoi, Vietnam
- 3College of Engineering and Applied Sciences, American University of Kuwait (AUK), Safat, Kuwait
Abstract
A compact single-layer, single-feed tri-band directional antenna is presented for Wi-Fi 6/6E systems. The target bands at 2.4, 5.2, and 6.0 GHz yield a highest-to-lowest frequency ratio of 2.50, making compact integration of the low-band radiator particularly challenging. To address this issue, the 2.4-GHz driven patch is reactively loaded with narrow capacitive gaps, shorting vias, and meandered sections, reducing its resonant length from 33 to 13 mm (approximately 61%). Two proximity-coupled parasitic patches generate the 5.2- and 6.0-GHz resonances. The spatially distinct current paths provide nearly independent control of the three operating bands. A prototype occupying 0.36λ × 0.36λ × 0.012λ, where λ is the free-space wavelength at 2.4 GHz, exhibits measured −10-dB impedance bandwidths of 20, 90, and 100 MHz and peak broadside realized gains of 3.1, 5.8, and 6.8 dBi, respectively. The proposed configuration provides a compact and structurally simple solution for channel-specific Wi-Fi 6/6E links.
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BibTeX
@article{nguyenquang2026compact,
title = {{A compact single-layer tri-band directional antenna for Wi-Fi 6/6E applications}},
author = {Anh Nguyen-Quang and Hung Tran-Huy and Hung Nguyen-Manh and Muhammad Ikram},
journal = {PLOS One},
year = {2026},
month = oct,
doi = {10.1371/journal.pone.0359290},
url = {https://doi.org/10.1371/journal.pone.0359290},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - A compact single-layer tri-band directional antenna for Wi-Fi 6/6E applications
AU - Anh Nguyen-Quang
AU - Hung Tran-Huy
AU - Hung Nguyen-Manh
AU - Muhammad Ikram
PY - 2026
DA - 2026/10/01
JO - PLOS One
DO - 10.1371/journal.pone.0359290
UR - https://doi.org/10.1371/journal.pone.0359290
AB - A compact single-layer, single-feed tri-band directional antenna is presented for Wi-Fi 6/6E systems. The target bands at 2.4, 5.2, and 6.0 GHz yield a highest-to-lowest frequency ratio of 2.50, making compact integration of the low-band radiator particularly challenging. To address this issue, the 2.4-GHz driven patch is reactively loaded with narrow capacitive gaps, shorting vias, and meandered sections, reducing its resonant length from 33 to 13 mm (approximately 61%). Two proximity-coupled parasitic patches generate the 5.2- and 6.0-GHz resonances. The spatially distinct current paths provide nearly independent control of the three operating bands. A prototype occupying 0.36λ × 0.36λ × 0.012λ, where λ is the free-space wavelength at 2.4 GHz, exhibits measured −10-dB impedance bandwidths of 20, 90, and 100 MHz and peak broadside realized gains of 3.1, 5.8, and 6.8 dBi, respectively. The proposed configuration provides a compact and structurally simple solution for channel-specific Wi-Fi 6/6E links.
SN - 1932-6203
ER -