Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/129394
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Type: | Journal article |
Title: | Low-profile terahertz radar based on broadband leaky-wave beam steering |
Author: | Murano, K. Watanabe, I. Kasamatsu, A. Suzuki, S. Asada, M. Withayachumnankul, W. Tanaka, T. Monnai, Y. |
Citation: | IEEE Transactions on Terahertz Science and Technology, 2017; 7(1):60-69 |
Publisher: | Institute of Electrical and Electronics Engineers |
Issue Date: | 2017 |
ISSN: | 2156-342X 2156-3446 |
Statement of Responsibility: | Kosuke Murano, Issei Watanabe, Akifumi Kasamatsu, Safumi Suzuki, Masahiro Asada, Withawat Withayachumnankul, Toshiyuki Tanaka, and Yasuaki Monnai |
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 leakywave antenna driven by a vector network analyzer. By sweeping the frequency from235 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. |
Keywords: | Beam steering; broadside radiation; leakywave antennas (LWA); terahertz radar; waveguide-to-microstrip couplers |
Description: | Date of publication December 1, 2016; date of current version January 12, 2017. |
Rights: | © 2016 IEEE |
DOI: | 10.1109/TTHZ.2016.2624514 |
Published version: | http://dx.doi.org/10.1109/tthz.2016.2624514 |
Appears in Collections: | Aurora harvest 4 Electrical and Electronic Engineering publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_129394.pdf | Submitted version | 4.93 MB | Adobe PDF | View/Open |
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