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

被引：1
|
作者：
Dobroiu, Adrian [1 ]
Asama, Kotaro [1 ]
Suzuki, Safumi [1 ]
Asada, Masahiro [1 ]
Ito, Hiroshi [2 ]
机构：
[1] Tokyo Inst Technol, Tokyo 1528552, Japan
[2] Kitasato Univ, Sagamihara, Kanagawa 2520373, Japan
来源：
2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ) | 2021年
关键词：
D O I：
10.1109/IRMMW-THz50926.2021.9567337
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 mu m.
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页数：2
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