Design of 4-direction MIMO Vivaldi antenna system for vehicles communication in 5G applications

Allam M. Ameen, Mohamed I. Ahmed, Hala Elsadek and Wagdy R. Anis

Journal of Electromagnetic Waves and Applications, 2022, vol. 36, issue 14, 2027-2040

Abstract: A MIMO antenna system that consists of four-element Vivaldi antenna for V2V communication is presented. The proposed design is realized on a substrate material of “Rogers 5880” with $ {\varepsilon _r} = 2.2 $ ϵr=2.2, $ \textrm{tan}\,\delta = 0.002 $ tanδ=0.002, and a substrate thickness equals $ 0.508\textrm{mm} $ 0.508mm. The antenna is designed to operate at a center frequency of $ 28\textrm{GHz} $ 28GHz. The designed antenna achieves a wide bandwidth of $ 1.57\textrm{GHz}({5.61\%} ) $ 1.57GHz(5.61%) around the center frequency. The radiation pattern of the proposed structure covers all the directions (a full $ {360^ \circ } $ 360∘ coverage area) with high gain. An overall realized gain of $ 9.68\textrm{dBi} $ 9.68dBi is achieved at the intended center frequency. The proposed antenna is designed and simulated using the Computer Simulation Technology MicroWave Studio software (CSTMWS). It is also fabricated using photolithography techniques and measured using an R&S vector network analyzer. Good agreement is obtained between both the CSTMWS and the measured results.

Date: 2022
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DOI: 10.1080/09205071.2022.2054046

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