Results 11 to 20 of about 832 (152)
Terahertz-Wave-Plethysmography (TPG): A New Principle of Radar Based Pulse Detection [PDF]
, 2021 Abstract This study presents findings at Terahertz (THz) frequency band for non-contact cardiac sensing application. For the first time, cardiac pulse information is simultaneously extracted using THz waves based on the two established principles in electronics and optics.
Yu Rong +3 more
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All-Metal Coding Metasurfaces for Broadband Terahertz RCS Reduction and Infrared Invisibility
Photonics, 2023 With the rapid advancement of modern technology and radar detection systems, electromagnetic (EM) stealth technology has become increasingly significant, particularly in aircraft stealth and military radar applications.
Ming Zhang +6 more
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A review of terahertz phase modulation from free space to guided wave integrated devices
Nanophotonics, 2021 In the past ten years, terahertz technology has developed rapidly in wireless communications, spectroscopy, and imaging. Various functional devices have been developed, such as filters, absorbers, polarizers, mixers, and modulators.
Zeng Hongxin +11 more
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Experimental Evaluation of 79 and 300 GHz Radar Performance in Fire Environments
Sensors, 2021 This paper presents an experimental study of the propagation of mm-wave/low-THz signals in the frequency ranges of 79 and 300 GHz through fire. Radar performance was investigated in various real scenarios, including fire with strong flame, dense smoke ...
Aleksandr Bystrov +5 more
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Terahertz Metasurfaces: Toward Multifunctional and Programmable Wave Manipulation
Frontiers in Physics, 2020 Metasurfaces, composed of prearranged artificial unit cells possessing different electromagnetic (EM) responses, provide unprecedented abilities to realize versatile wave manipulations.
Han Wei Tian +5 more
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Compressed Sensing for THz FMCW Radar 3D Imaging
Complexity, 2021 A terahertz (THz) frequency-modulated continuous wave (FMCW) imaging radar system is developed for high-resolution 3D imaging recently. Aiming at the problems of long data acquisition periods and large sample sizes for the developed imaging system, an ...
Shanshan Gu +6 more
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Metasurface-based terahertz wideband linear polarization converter
Results in Optics, 2023 We designed a linear polarization converter based on metasurface and simulated its functionality. It has a broad bandwidth and operates in the terahertz frequency range (0.4–1.2 THz).
Yuhan Zhao +4 more
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Estimation of Path Loss Parameters of a Sub-Terahertz Wireless Channel Using Monostatic Radar
IEEE Access, 2021 This paper presents a novel technique for estimating the path loss parameters of radio channels using monostatic radar. To this end, a two-way path loss model for a scenario using monostatic radar for a sub-terahertz (sub-THz) band channel measurement is
Gye-Tae Gil, Ju Yong Lee, Dong-Ho Cho
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Sensors, 2020 Millimeter-wave and terahertz frequencies offer unique characteristics to simultaneously obtain good spatial resolution and penetrability. In this paper, a robust near-field monostatic focusing technique is presented and successfully applied for the ...
Jose Antonio Solano-Perez +6 more
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IEEE Access, 2020 In this paper, an ultra-broadband and high-efficiency polarization conversion metasurface is presented in the terahertz region. The metasureface is similar to a sandwiched structure, which is composed of the top Double Split Ring Resonator (DSRR), an ...
Yunping Qi +3 more
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