Results 1 to 10 of about 71,505 (298)
Quantum-inspired superposition and nonseparable states of reconfigurable metasurfaces in classical systems [PDF]
Nature CommunicationsClassical and quantum bits serve as cornerstone in information science. As this field rapidly evolves, the interplay between the two continues to enrich and inspire each other.
Long Chen +7 more
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Multilayer nonlinear diffraction neural networks with programmable and fast ReLU activation function [PDF]
Nature CommunicationsOptical diffractive neural networks are emerging for improving speed and energy efficiency in machine learning. However, the challenges of nonlinear activation functions (e.g., latency issues, high power consumption, and cascading complexity) impede ...
Yu Ming Ning +9 more
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Millimeter-Wave Communications [PDF]
Electronics, 2020 For the last few decades, the millimeter wave (mmWave) frequency band (30–300 GHz) has been seen as a serious candidate to host very high data rate communications [...]
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MILLIMETER-MILLIMETER-WAVE DOUBLE-MODULATION DOUBLE-RESONANCE SPECTROSCOPY [PDF]
Proceedings of the 2021 International Symposium on Molecular Spectroscopy, 2021 A new millimeter- to millimeter-wave double-modulation double-resonance (MMW-MMW DM-DR) scheme has been applied to record spectra of two astronomically relevant complex organic molecules (COMs), propanal (C2H5CHO) and ethyl cyanide (C2H5CN), to demonstrate advantages of the DM-DR experimental technique.
Oliver Zingsheim +5 more
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Nature Communications, 2023 Manipulations of multiple carrier frequencies are especially important in a variety of fields like radar detection and wireless communications. In conventional radio-frequency architecture, the multi-frequency control is implemented by microwave circuits,
Si Ran Wang +5 more
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Overview of Signal Processing Techniques for Automotive Millimeter-wave Radar
Leida xuebao, 2023 As one of the core components of Advanced Driver Assistance Systems (ADAS), automotive millimeter-wave radar has become the focus of scholars and manufacturers at home and abroad because it has the advantages of all-day and all-weather operation ...
Yan HUANG +15 more
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Design of a 2-Bit Reconfigurable UWB Planar Antenna Array for Beam Scanning Application
IEEE Open Journal of Antennas and Propagation, 2023 Reconfigurable antennas have been widely employed for beam scanning in recent years. However, such antennas are usually limited by narrow bandwidth. To overcome this challenge, we present a linearly polarized 2-bit ultra-wideband (UWB) antenna array in C-
Zuqi Fang +6 more
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Design of Low-Cost Full W-Band 8th Harmonic Mixers for Frequency Extension of Spectrum Analyzer
IET Circuits, Devices and Systems, 2023 High-order harmonic mixer is popular for frequency extension of spectrum analyzer (SA) from microwave to millimeter-wave or even terahertz band. The manufactures of SA usually offer expensive harmonic mixers where frequency extension is needed.
Jian Guo +5 more
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Millimeter-wave compressive holography [PDF]
Applied Optics, 2010 We describe an active millimeter-wave holographic imaging system that uses compressive measurements for three-dimensional (3D) tomographic object estimation. Our system records a two-dimensional (2D) digitized Gabor hologram by translating a single pixel incoherent receiver. Two approaches for compressive measurement are undertaken: nonlinear inversion
Cull, Christy Fernandez +4 more
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Active odd-mode-metachannel for single-conductor systems
Opto-Electronic Advances, 2022 Although tremendous efforts have been devoted to investigating planar single-conductor circuits, it remains challenging to provide tight confinement of electromagnetic field and compatibility with active semi-conductor components such as amplifier ...
Pei Hang He +7 more
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