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Proceedings Paper

A novel design of a high performance passive millimeter-wave imager for security
Author(s): Weiwen Zhu; Yuejin Zhao; Liquan Dong; Xiaohua Liu; Jingshui Zhang
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Paper Abstract

This paper describes a high performance of opto-mechanically scanned millimeter-wave imager for airport security. It employs a crank-rocker mechanism to generate a high speed line scanning, which produces a horizontal FOV (field of view) of 30°. Accompanied by a frame scanning mirror of ±18° in the vertical direction, it brings about a two-dimensional scan of the scene of 146cm×75cm which is 1 meter away from the system. By this scanning mechanism, we use a single channel of a 94GHz receiver to collect the radiation from a convex lens which acts as the focusing element. Then the output of the receiver is passed to an A/D converter and is displayed on a conventional PC. The new scanning arrangement meets these requirements and has been being developed into a high performance, low-cost, and compact prototype system which hopefully will meet the present and future needs for millimeter-wave and terahertz imaging.

Paper Details

Date Published: 17 November 2010
PDF: 8 pages
Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 785426 (17 November 2010); doi: 10.1117/12.868145
Show Author Affiliations
Weiwen Zhu, Beijing Institute of Technology (China)
Yuejin Zhao, Beijing Institute of Technology (China)
Liquan Dong, Beijing Institute of Technology (China)
Xiaohua Liu, Beijing Institute of Technology (China)
Jingshui Zhang, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7854:
Infrared, Millimeter Wave, and Terahertz Technologies
Cunlin Zhang; Xi-Cheng Zhang; Peter H. Siegel; Li He; Sheng-Cai Shi, Editor(s)

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