Antipodal Vivaldi antenna with frequency selective surface for ultrawideband radar systems

Ercan Köseni; Hakan Altan; Özgür Özdemir

doi:10.1117/12.3031723

Antipodal Vivaldi antenna with frequency selective surface for ultrawideband radar systems

Ercan Köseni, Hakan Altan, Özgür Özdemir

Department of Electronics and Communication Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The ultra wideband (UWB) antenna is one of the essential part of vital sign detection radar systems. The antenna characteristics of high gain and reduced side lobe level have a contribution to improve the detection capability of the UWB radar. In this work Antipodal Vivaldi antenna backed with frequency-selective surface (FSS) is developed for UWB pulsed radar system in the frequency range of 3.1 to 4.8 GHz. The frequency-selective surface reflector is used to improve the gain of the antenna and reduces the side lobe level of the antenna. Substrate used for Vivaldi antenna and FSS is low cost material, FR-4 with a relative permittivity (ε_r) of 4.3 and a thickness of 1.52 mm. The air gap between the antenna and the FSS and the unit cell number of the FSS were optimized for high gain. The proposed FSS integrated antenna provides a maximum gain of 9.58 dBi. The prototype the antipodal Vivaldi antenna is fabricated and tested and the simulation results are verified using experimental measurements.

Original language	English
Title of host publication	Sensors and Communication Technologies in the 1 GHz to 10 THz Band
Editors	Neil A. Salmon, Wladislaw Michailow
Publisher	SPIE
ISBN (Electronic)	9781510681149
DOIs	https://doi.org/10.1117/12.3031723
Publication status	Published - 2024
Event	Sensors and Communication Technologies in the 1 GHz to 10 THz Band 2024 - Edinburgh, United Kingdom Duration: 18 Sept 2024 → 19 Sept 2024

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	13203
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Sensors and Communication Technologies in the 1 GHz to 10 THz Band 2024
Country/Territory	United Kingdom
City	Edinburgh
Period	18/09/24 → 19/09/24

Bibliographical note

Publisher Copyright:
© 2024 SPIE.

Keywords

Antipodal vivaldi antenna
frequency-selective surface (FSS)
ground-penetrating radar (GPR)
high gain
radar
ultra-wideband (UWB)

Access to Document

10.1117/12.3031723

Cite this

Köseni, E., Altan, H., & Özdemir, Ö. (2024). Antipodal Vivaldi antenna with frequency selective surface for ultrawideband radar systems. In N. A. Salmon, & W. Michailow (Eds.), Sensors and Communication Technologies in the 1 GHz to 10 THz Band Article 132030I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13203). SPIE. https://doi.org/10.1117/12.3031723

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title = "Antipodal Vivaldi antenna with frequency selective surface for ultrawideband radar systems",

abstract = "The ultra wideband (UWB) antenna is one of the essential part of vital sign detection radar systems. The antenna characteristics of high gain and reduced side lobe level have a contribution to improve the detection capability of the UWB radar. In this work Antipodal Vivaldi antenna backed with frequency-selective surface (FSS) is developed for UWB pulsed radar system in the frequency range of 3.1 to 4.8 GHz. The frequency-selective surface reflector is used to improve the gain of the antenna and reduces the side lobe level of the antenna. Substrate used for Vivaldi antenna and FSS is low cost material, FR-4 with a relative permittivity (εr) of 4.3 and a thickness of 1.52 mm. The air gap between the antenna and the FSS and the unit cell number of the FSS were optimized for high gain. The proposed FSS integrated antenna provides a maximum gain of 9.58 dBi. The prototype the antipodal Vivaldi antenna is fabricated and tested and the simulation results are verified using experimental measurements.",

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Köseni, E, Altan, H & Özdemir, Ö 2024, Antipodal Vivaldi antenna with frequency selective surface for ultrawideband radar systems. in NA Salmon & W Michailow (eds), Sensors and Communication Technologies in the 1 GHz to 10 THz Band., 132030I, Proceedings of SPIE - The International Society for Optical Engineering, vol. 13203, SPIE, Sensors and Communication Technologies in the 1 GHz to 10 THz Band 2024, Edinburgh, United Kingdom, 18/09/24. https://doi.org/10.1117/12.3031723

Antipodal Vivaldi antenna with frequency selective surface for ultrawideband radar systems. / Köseni, Ercan; Altan, Hakan; Özdemir, Özgür.
Sensors and Communication Technologies in the 1 GHz to 10 THz Band. ed. / Neil A. Salmon; Wladislaw Michailow. SPIE, 2024. 132030I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13203).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Özdemir, Özgür

PY - 2024

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N2 - The ultra wideband (UWB) antenna is one of the essential part of vital sign detection radar systems. The antenna characteristics of high gain and reduced side lobe level have a contribution to improve the detection capability of the UWB radar. In this work Antipodal Vivaldi antenna backed with frequency-selective surface (FSS) is developed for UWB pulsed radar system in the frequency range of 3.1 to 4.8 GHz. The frequency-selective surface reflector is used to improve the gain of the antenna and reduces the side lobe level of the antenna. Substrate used for Vivaldi antenna and FSS is low cost material, FR-4 with a relative permittivity (εr) of 4.3 and a thickness of 1.52 mm. The air gap between the antenna and the FSS and the unit cell number of the FSS were optimized for high gain. The proposed FSS integrated antenna provides a maximum gain of 9.58 dBi. The prototype the antipodal Vivaldi antenna is fabricated and tested and the simulation results are verified using experimental measurements.

AB - The ultra wideband (UWB) antenna is one of the essential part of vital sign detection radar systems. The antenna characteristics of high gain and reduced side lobe level have a contribution to improve the detection capability of the UWB radar. In this work Antipodal Vivaldi antenna backed with frequency-selective surface (FSS) is developed for UWB pulsed radar system in the frequency range of 3.1 to 4.8 GHz. The frequency-selective surface reflector is used to improve the gain of the antenna and reduces the side lobe level of the antenna. Substrate used for Vivaldi antenna and FSS is low cost material, FR-4 with a relative permittivity (εr) of 4.3 and a thickness of 1.52 mm. The air gap between the antenna and the FSS and the unit cell number of the FSS were optimized for high gain. The proposed FSS integrated antenna provides a maximum gain of 9.58 dBi. The prototype the antipodal Vivaldi antenna is fabricated and tested and the simulation results are verified using experimental measurements.

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Y2 - 18 September 2024 through 19 September 2024

ER -

Antipodal Vivaldi antenna with frequency selective surface for ultrawideband radar systems

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Keywords

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