SHARK-FIN ANTENNA FOR RAILWAY COMMUNICATIONS IN LTE-R, LTE, AND LOWER 5G FREQUENCY BANDS

SHARK-FIN ANTENNA FOR RAILWAY COMMUNICATIONS IN LTE-R, LTE, AND LOWER 5G FREQUENCY BANDS

This paper presents a design study of a shark-fin antenna for future railway communications. Three specific bands are considered here as LTE-R (700 MHz), LTE (2100 MHz), and Lower 5G band (3500 MHz). A 3-D metallic structure using the 3D printing technique has been designed and fabricated for the co...

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Veröffentlicht in:Electromagnetic waves (Cambridge, Mass.) Mass.), 2020-01, Vol.167, p.83-94
Hauptverfasser: Arya, Ashwini K, Kim, Seongjin, Park, Sungik, Kim, Donghoon, Hassan, Rehab S, Ko, Kyeongjun, Kim, Sanghoek
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Analysis
Antennas (Electronics)
Railroads
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container_end_page 94
container_issue
container_start_page 83
container_title Electromagnetic waves (Cambridge, Mass.)
container_volume 167
creator Arya, Ashwini K
Kim, Seongjin
Park, Sungik
Kim, Donghoon
Hassan, Rehab S
Ko, Kyeongjun
Kim, Sanghoek
description This paper presents a design study of a shark-fin antenna for future railway communications. Three specific bands are considered here as LTE-R (700 MHz), LTE (2100 MHz), and Lower 5G band (3500 MHz). A 3-D metallic structure using the 3D printing technique has been designed and fabricated for the consideration of the required bands. The volume size of the antenna element is 163 x 61.9 x 10[mm.sup.3]. The multi-physical simulations in terms of the smooth air flow and lower drag coefficient are performed for analyzing the need of shark-fin radome cover. More than 70 MHz bandwidth was observed for the LTE-R band and also a wide band response from 1.4 GHz to 4.2 GHz was observed that cover the required bands well, i.e., the LTE, and Lower 5G band. The proposed shark-fin antenna results in the expected omnidirectional radiation pattern in the horizontal plane, with the radiation efficiency of 71.7%, 92.6%, and 96.4% in the railway environment for the LTE-R, LTE, and Lower 5G band frequency, respectively.
doi_str_mv 10.2528/PIER20040201
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Antennas (Electronics)
Railroads
title SHARK-FIN ANTENNA FOR RAILWAY COMMUNICATIONS IN LTE-R, LTE, AND LOWER 5G FREQUENCY BANDS
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