Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam Steering

Kosuke Murano, Issei Watanabe, Akifumi Kasamatsu, Safumi Suzuki, Masahiro Asada, Withawat Withayachumnankul, Toshiyuki Tanaka, Yasuaki Monnai

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We demonstrate short-range terahertz radar based on a leaky-wave antenna with a beam steering capability. As a proof of concept, we develop a microstrip-based periodic leaky-wave antenna driven by a vector network analyzer. By sweeping the frequency from 235 to 325 GHz, beam steering from-23 ° to + 15° across the broadside can be achieved with a nearly constant beam width of 4 °. Small target detection is demonstrated by locating a metal cylinder with a diameter of 12 mm placed 46-86 mm in front of the antenna with a mean error of 2.4 mm. The use of a leaky-wave antenna can pave the way for developing a low-loss, low-profile, and wide-aperture terahertz radar. Importantly, it can be integrated with a solid-state source and a detector. The proposed approach is particularly promising for use with emerging small devices such as drones or wearable devices, where millimeter-wave radar is not suitable in terms of the resolution and system footprint.

Original languageEnglish
Article number7762933
Pages (from-to)60-69
Number of pages10
JournalIEEE Transactions on Terahertz Science and Technology
Volume7
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

beam steering
radar
Radar
antennas
Antennas
broadband
profiles
Millimeter wave devices
radar range
Electric network analyzers
footprints
Target tracking
millimeter waves
emerging
analyzers
apertures
Detectors
solid state
detectors
Metals

Keywords

  • Beam steering
  • broadside radiation
  • leaky-wave antennas (LWA)
  • terahertz radar
  • waveguide-to-microstrip couplers

ASJC Scopus subject areas

  • Radiation
  • Electrical and Electronic Engineering

Cite this

Murano, K., Watanabe, I., Kasamatsu, A., Suzuki, S., Asada, M., Withayachumnankul, W., ... Monnai, Y. (2017). Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam Steering. IEEE Transactions on Terahertz Science and Technology, 7(1), 60-69. [7762933]. https://doi.org/10.1109/TTHZ.2016.2624514

Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam Steering. / Murano, Kosuke; Watanabe, Issei; Kasamatsu, Akifumi; Suzuki, Safumi; Asada, Masahiro; Withayachumnankul, Withawat; Tanaka, Toshiyuki; Monnai, Yasuaki.

In: IEEE Transactions on Terahertz Science and Technology, Vol. 7, No. 1, 7762933, 01.01.2017, p. 60-69.

Research output: Contribution to journalArticle

Murano, K, Watanabe, I, Kasamatsu, A, Suzuki, S, Asada, M, Withayachumnankul, W, Tanaka, T & Monnai, Y 2017, 'Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam Steering', IEEE Transactions on Terahertz Science and Technology, vol. 7, no. 1, 7762933, pp. 60-69. https://doi.org/10.1109/TTHZ.2016.2624514
Murano K, Watanabe I, Kasamatsu A, Suzuki S, Asada M, Withayachumnankul W et al. Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam Steering. IEEE Transactions on Terahertz Science and Technology. 2017 Jan 1;7(1):60-69. 7762933. https://doi.org/10.1109/TTHZ.2016.2624514
Murano, Kosuke ; Watanabe, Issei ; Kasamatsu, Akifumi ; Suzuki, Safumi ; Asada, Masahiro ; Withayachumnankul, Withawat ; Tanaka, Toshiyuki ; Monnai, Yasuaki. / Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam Steering. In: IEEE Transactions on Terahertz Science and Technology. 2017 ; Vol. 7, No. 1. pp. 60-69.
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