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Proceedings Paper

Design of short-range terahertz wave passive detecting system
Author(s): Chao Zhang; Guowei Lou; Li Zhu; Songsong Qian; Ting Li
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Paper Abstract

Based on the study of radiation and transmission characteristics on THz waveband, a short-range passive detecting system is designed. The scheme originated from microwave passive detecting system. A prototype was developed following the design of key components including antennas and a harmonic mixer. The system operated at 0.36 THz. A dual-beam Cassegrain antenna was adopted for receiving signals which radiated by object and background. Local oscillator signal was generated by frequency multiplication. Harmonic mixing is adopted for reducing local oscillator signal frequency required by half. Superheterodyne technology is employed for signal acquisition. The system implemented easily. Tests and measurements were taken, which showed that the scheme was feasible and the performance of the prototype system met the design requirements.

Paper Details

Date Published: 27 September 2016
PDF: 6 pages
Proc. SPIE 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 96843F (27 September 2016); doi: 10.1117/12.2243619
Show Author Affiliations
Chao Zhang, Nanjing Univ. of Science and Technology (China)
Guowei Lou, Nanjing Univ. of Science and Technology (China)
Li Zhu, Nanjing Univ. of Science and Technology (China)
Songsong Qian, Nanjing Univ. of Science and Technology (China)
Ting Li, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9684:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
Yudong Zhang; Fan Wu; Ming Xu; Sandy To, Editor(s)

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