利用调幅共振隧道二极管振荡器的三维太赫兹成像

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Pub Date : 2021-08-29 DOI:10.1109/IRMMW-THz50926.2021.9567337

A. Dobroiu, Kotaro Asama, S. Suzuki, M. Asada, H. Ito

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引用次数: 2

摘要

我们报道了一种三维成像系统，该系统由调幅连续波(AMCW)雷达与二维机械扫描相结合获得。该系统基于一个谐振隧道二极管(RTD)振荡器，发射频率为660 GHz，调制频率为4.5 GHz。轴向距离测量依赖于通过IQ混频器确定解调信号的相位。经过仔细校准，距离测量误差减小到20µm。

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Three-dimensional terahertz imaging using an amplitude-modulated resonant-tunneling-diode oscillator

We report on a three-dimensional imaging system obtained by combining an amplitude-modulated continuous-wave (AMCW) radar with two-dimensional mechanical scanning. The system is based on a resonant-tunneling-diode (RTD) oscillator emitting at 660 GHz and modulated at 4.5 GHz. The axial distance measurement relies on determining the phase of the demodulated signal by means of an IQ mixer. With careful calibration, the distance measurement error was reduced to 20 µm.

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2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)

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