Results 1 to 10 of about 832 (152)
Discrete Fourier Transform Radar in the Terahertz-Wave Range Based on a Resonant-Tunneling-Diode Oscillator [PDF]
Sensors, 2021 We used a resonant-tunneling-diode (RTD) oscillator as the source of a terahertz-wave radar based on the principle of the swept-source optical coherence tomography (SS-OCT).
Hiroki Konno +4 more
doaj +5 more sources
Absolute and Precise Terahertz-Wave Radar Based on an Amplitude-Modulated Resonant-Tunneling-Diode Oscillator [PDF]
Photonics, 2018 We present the principle of a terahertz-wave radar and its proof-of-concept experimental verification. The radar is based on a 522 GHz resonant-tunneling-diode oscillator, whose terahertz output power can be easily modulated by superimposing the ...
Adrian Dobroiu +4 more
doaj +4 more sources
Sensors, 2020 We introduce a new principle for distance measurement in the terahertz-wave range using a resonant-tunneling-diode (RTD) oscillator as a source at 511 GHz and relying on the frequency-modulated continuous-wave (FMCW) radar technique.
Adrian Dobroiu +4 more
doaj +3 more sources
Terahertz Frequency-Modulated Continuous-Wave Inspection of an Ancient Enamel Plate [PDF]
SensorsThis study investigates the application of terahertz frequency-modulated continuous-wave (FMCW) imaging for the non-destructive inspection of a historical enamel plate, using both reflection and transmission modes.
Frédéric Fauquet +5 more
doaj +2 more sources
Terahertz radar with all-dielectric leaky-wave antenna
APL PhotonicsTerahertz radars based on leaky-wave antennas are promising for the realization of radar systems with high resolution over short ranges. This type of radar relies on spatial frequency mapping to realize a wide field of view without mechanical actuation ...
Harrison Lees +4 more
doaj +2 more sources
Analysis of Terahertz Wave on Increasing Radar Cross Section of 3D Conductive Model [PDF]
Electronics, 2021 Enhancing the frequency band of the electromagnetic wave is regarded as an efficient way to solve the communication blackout problem. In this paper, frequency of incident wave is raised to Terahertz (THz) band and the radar cross section (RCS) of the three-dimensional conductive model is calculated and simulated based on the Runge–Kutta Exponential ...
Hongyao Liu +5 more
openaire +1 more source
Results in Physics, 2021 Terahertz waves have long been considered as the most efficient of many solutions to solve the blackout problem for the reason that terahertz waves have much stronger penetration than microwaves.
Shuobei Sun, Song Liu, Shuangying Zhong
doaj +1 more source
Leida xuebao, 2021 In the Inverse Synthetic Aperture Radar (ISAR) imaging system, when the terahertz radar transmits the wide bandwidth signal and vortex electromagnetic wave, Three-Dimensional (3D) high-resolution imaging can be achieved through information decoupling ...
Yanwen JIANG, Hongqi FAN, Shuangxun LI
doaj +1 more source
The Simulation of Terahertz Wave Radar System [PDF]
Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering, 2015 From the system simulation perspective, the thesis is about testing the coming multi frequency multiplexing Terahertz radar system and take the 340GHz as the example to design and analyze the system. With the adoption of 21.6 GHz Bandwidth and the foundation of the Matlab/Simulink, the Frequency multiplication module, Mixing module and Quadrature ...
Xiangwen Li, Ling Zhou
openaire +1 more source
Toward a solid-state, compact, terahertz-wave radar [PDF]
AIP Conference Proceedings, 2019 We report the principle and first experimental results on a terahertz-wave radar based on a resonant-tunneling diode (RTD) working as a 522 GHz radiation source and a Schottky barrier diode (SBD) as a detector. By modulating the output power of the RTD at two frequencies and measuring the corresponding phase delays after the terahertz wave propagates ...
Adrian Dobroiu +3 more
openaire +1 more source