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

Alibakhshikenari, Mohammad, Virdee, Bal Singh, See, Chan, Shukla, Pancham, Moghaddam, Sadegh Mansouri, Zaman, Ashraf Uz, Shafqaat, Samia, Akinsolu, Mobayode O., Liu, Bo, Yang, Jian, Abd-Alhameed, Raed, Falcone, Francisco and Limiti, Ernesto (2021) Dual-polarized highly folded Bowtie antenna with slotted self grounded structure for sub 6 GHz 5G applications. IEEE Transactions on Antennas and Propagation. pp. 1-6. ISSN 1558-2221

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Official URL: https://ieeexplore.ieee.org/document/9573304

Abstract / Description

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: Article
Uncontrolled Keywords: bowtie antenna, dual-polarized, slotted self-grounded structure, I-shaped slot, sub-6 GHz, MIMO, 5G applications
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Depositing User: Bal Virdee
Date Deposited: 19 Oct 2021 09:48
Last Modified: 19 Oct 2021 09:48
URI: http://repository.londonmet.ac.uk/id/eprint/7056

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