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 size (volume) of the antenna element is 163 × 61.9 × 10 mm3. 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 was observed that cover the required bands well i.e. the LTE, and lower 5G band. The proposed shark-fin antenna results the expected ideal radiation performance with an omnidirectional behavior in the horizontal plane.
Ashwini Kumar Arya,
Seong Jin Kim,
Rehab S. Hassan,
"Shark-Fin Antenna for Railway Communications in LTE-R, LTE, and Lower 5G Frequency Bands," Progress In Electromagnetics Research,
Vol. 167, 83-94, 2020. doi:10.2528/PIER20040201
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