Dual-polarized highly folded bowtie antenna with slotted self-grounded structure for Sub-6 GHz 5G applications

Alibakhshikenari, M. et al. (2022) Dual-polarized highly folded bowtie antenna with slotted self-grounded structure for Sub-6 GHz 5G applications. IEEE Transactions on Antennas and Propagation, 70(4), pp. 3028-3033. (doi: 10.1109/TAP.2021.3118784)

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In this paper, a novel dual-polarized highly-folded self-grounded Bowtie antenna that is excited through I-shaped slots is proposed for applications in sub-6GHz 5G multiple-input-multiple-output (MIMO) antenna systems. The antenna consists of two pairs of folded radiation petals whose base is embedded in a double layer of FR-4 substrate with a common ground-plane which is sandwiched between the two substrate layers. The ground-plane is defected with two I-shaped slots located under the radiation elements. Each pair of radiation elements are excited through a microstrip line on the top layer with RF signal that is 180° out of phase with respect to each other. The RF signal is coupled to the pair of feedlines on the top layer through the I-shaped slots from the two microstrip feedlines on the underside of the second substrate. The proposed feed mechanism gets rid of the otherwise bulky balun. The Bowtie antenna is a compact solution with dimensions of 32 32 33.8 mm3. Measured results have verified that the antenna operates over a frequency range of 3.1–5 GHz and exhibits an average gain and antenna efficiency in the vertical and horizontal polarizations of 7.5 dBi and 82.6%, respectively.

Item Type:Articles
Additional Information:This project has received funding from Universidad Carlos III de Madrid and the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant Agreement No 801538. Also, this work was partially supported by the Ministerio de Ciencia, Innovación y Universidades, Gobierno de España (MCIU/AEI/FEDER,UE) under Grant RTI2018-095499-B-C31, in part by the Innovation Programme under Grant H2020-MSCA-ITN-2016 SECRET-722424, and in part by the U.K. Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/E022936/1.
Glasgow Author(s) Enlighten ID:Liu, Dr Bo
Authors: Alibakhshikenari, M., Virdee, B. S., See, C. H., Shukl, P., Moghaddam, S. M., Zaman, A. U., Shafqaat, S., Akinsolu, M. O., Liu, B., Yang, J., Abd-Alhameed, R., Falcone, F., and Limiti, E.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:IEEE Transactions on Antennas and Propagation
ISSN (Online):1558-2221
Published Online:14 October 2021
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in IEEE Transactions on Antennas and Propagation 70(4): 3028-3033
Publisher Policy:Reproduced under a Creative Commons Licence

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