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Partially filled half-mode substrate integrated waveguide leaky-wave antenna for 24 GHz automotive radar

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  • ATTO (A new concept for ultra-high capacity wireless networks.)
Abstract
A novel highly efficient leaky-wave antenna (LWA), based on a periodic set of holes created in a half-mode substrate integrated waveguide (SIW), is conceived for automotive radar. The computer-aided design of this partially filled SIW (PFSIW) LWA is carried out using a full-wave electromagnetic simulator. As a proof-of-concept, an LWA prototype having a plate size of 15 x 126 mm(2) is fabricated through a standard low-cost printed circuit board (PCB) manufacturing process. Our manufactured prototype yields more than 25% impedance bandwidth, targeting the 24 GHz automotive short-range-radar band. Moreover, the measured peak gain and total antenna efficiency reach up to 15.5 dBi and 85% at 24 GHz. Furthermore, themain radiating direction steers continuously from 38 degrees to 58 degrees with an average half-power beamwidth of 12. when the operating frequency changes from 22 to 26 GHz. In comparison, a 160 mm long dielectric-filled SIW (DFSIW) LWA yields ameasured scanning range of 49 degrees and a total antenna efficiency of 43.8%, whereas an 80.3 mm long air-filled SIW (AFSIW) LWA exhibits a measured scanning range of 9 degrees and a total antenna efficiency of 80%. Therefore, PFSIW technology provides an optimal tradeoff between DFSIW and AFSIW for the envisaged short-range automotive radar application.
Keywords
Air filled, automotive radar, dielectric filled, frequency scanning antenna, leaky-wave antenna (LWA), partially filled, substrate integrated waveguide (SIW)

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Citation

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MLA
Kapusuz, Kamil Yavuz, et al. “Partially Filled Half-Mode Substrate Integrated Waveguide Leaky-Wave Antenna for 24 GHz Automotive Radar.” IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, vol. 20, no. 1, 2021, pp. 33–37, doi:10.1109/LAWP.2020.3038201.
APA
Kapusuz, K. Y., Vanden Berghe, A., Lemey, S., & Rogier, H. (2021). Partially filled half-mode substrate integrated waveguide leaky-wave antenna for 24 GHz automotive radar. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 20(1), 33–37. https://doi.org/10.1109/LAWP.2020.3038201
Chicago author-date
Kapusuz, Kamil Yavuz, Andres Vanden Berghe, Sam Lemey, and Hendrik Rogier. 2021. “Partially Filled Half-Mode Substrate Integrated Waveguide Leaky-Wave Antenna for 24 GHz Automotive Radar.” IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 20 (1): 33–37. https://doi.org/10.1109/LAWP.2020.3038201.
Chicago author-date (all authors)
Kapusuz, Kamil Yavuz, Andres Vanden Berghe, Sam Lemey, and Hendrik Rogier. 2021. “Partially Filled Half-Mode Substrate Integrated Waveguide Leaky-Wave Antenna for 24 GHz Automotive Radar.” IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 20 (1): 33–37. doi:10.1109/LAWP.2020.3038201.
Vancouver
1.
Kapusuz KY, Vanden Berghe A, Lemey S, Rogier H. Partially filled half-mode substrate integrated waveguide leaky-wave antenna for 24 GHz automotive radar. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS. 2021;20(1):33–7.
IEEE
[1]
K. Y. Kapusuz, A. Vanden Berghe, S. Lemey, and H. Rogier, “Partially filled half-mode substrate integrated waveguide leaky-wave antenna for 24 GHz automotive radar,” IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, vol. 20, no. 1, pp. 33–37, 2021.
@article{8692013,
  abstract     = {{A novel highly efficient leaky-wave antenna (LWA), based on a periodic set of holes created in a half-mode substrate integrated waveguide (SIW), is conceived for automotive radar. The computer-aided design of this partially filled SIW (PFSIW) LWA is carried out using a full-wave electromagnetic simulator. As a proof-of-concept, an LWA prototype having a plate size of 15 x 126 mm(2) is fabricated through a standard low-cost printed circuit board (PCB) manufacturing process. Our manufactured prototype yields more than 25% impedance bandwidth, targeting the 24 GHz automotive short-range-radar band. Moreover, the measured peak gain and total antenna efficiency reach up to 15.5 dBi and 85% at 24 GHz. Furthermore, themain radiating direction steers continuously from 38 degrees to 58 degrees with an average half-power beamwidth of 12. when the operating frequency changes from 22 to 26 GHz. In comparison, a 160 mm long dielectric-filled SIW (DFSIW) LWA yields ameasured scanning range of 49 degrees and a total antenna efficiency of 43.8%, whereas an 80.3 mm long air-filled SIW (AFSIW) LWA exhibits a measured scanning range of 9 degrees and a total antenna efficiency of 80%. Therefore, PFSIW technology provides an optimal tradeoff between DFSIW and AFSIW for the envisaged short-range automotive radar application.}},
  author       = {{Kapusuz, Kamil Yavuz and Vanden Berghe, Andres and Lemey, Sam and Rogier, Hendrik}},
  issn         = {{1536-1225}},
  journal      = {{IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS}},
  keywords     = {{Air filled,automotive radar,dielectric filled,frequency scanning antenna,leaky-wave antenna (LWA),partially filled,substrate integrated waveguide (SIW)}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{33--37}},
  title        = {{Partially filled half-mode substrate integrated waveguide leaky-wave antenna for 24 GHz automotive radar}},
  url          = {{http://doi.org/10.1109/LAWP.2020.3038201}},
  volume       = {{20}},
  year         = {{2021}},
}

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