Results 1 to 10 of about 253,287 (316)
A Dual-Band Dual-Polarized Base Station Antenna Array With Isolation Enhancement
IEEE Open Journal of Antennas and Propagation, 2023 In this paper, a dual-band dual-polarized antenna with isolation enhancement is designed. The proposed antenna operates in the frequency range of 3.4–3.6 GHz and 4.8-5 GHz, where the center frequency of the high band (HB) is 1.4 times that of the ...
Lei Ge +4 more
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Sensors, 2022 Magnetic coupling resonance wireless power transfer can efficiently provide energy to intracranial implants under safety constraints, and is the main way to power fully implantable brain–computer interface systems.
Haochuan Wang +6 more
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Photonics, 2023 This study experimentally demonstrates two types of ultra-broadband metamaterial absorbers with high performance in the visible-to-near-infrared range by using different anti-reflection coatings (i.e., SiO2 and Si3N4) and a multi-subcell Ti-SiO2-Ti ...
Dongqing Wu +4 more
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Radio Labeling with Preassigned Frequencies [PDF]
SIAM Journal on Optimization, 2002 Summary: A radio labeling of a graph \(G\) is an assignment of pairwise distinct, positive integer labels to the vertices of \(G\) such that labels of adjacent vertices differ by at least \(2\). The radio labeling problem (RL) consists in determining a radio labeling that minimizes the maximum label that is used (the so-called span of the labeling). RL
Hans L. Bodlaender +4 more
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Doppler Shift Tolerance of Typical Pseudorandom Binary Sequences in PMCW Radar
Sensors, 2022 In the context of all-digital radar systems, phase-modulated continuous wave (PMCW) based on pseudorandom binary sequences (PRBSs) appears to be a prominent candidate modulation scheme for applications such as autonomous driving.
Lucas Giroto de Oliveira +9 more
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Actuators, 2023 As human–computer interaction has become increasingly popular, haptic technology has become a research topic of great interest, since vibration perception, as a type of haptic feedback, can enhance user experience during an interaction. However, the high
Rui Ye +3 more
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Nanomaterials, 2022 In this study, we propose a miniaturized bandpass filter (BPF) developed by combining an approximate circular (36-gon) winding inductor, a circinate capacitor, and five air-bridge structures fabricated on a gallium arsenide (GaAs) substrate using an ...
Jian Chen +6 more
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HTsort: Enabling Fast and Accurate Spike Sorting on Multi-Electrode Arrays
Frontiers in Computational Neuroscience, 2021 Spike sorting is used to classify the spikes (action potentials acquired by physiological electrodes), aiming to identify their respective firing units. Now it has been developed to classify the spikes recorded by multi-electrode arrays (MEAs), with the ...
Keming Chen +5 more
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Evaluation of inactivation of bovine coronavirus by low-level radiofrequency irradiation
Scientific Reports, 2023 Inactivation of influenza A virus by radiofrequency (RF) energy exposure at levels near Institute of Electrical and Electronics Engineers (IEEE) safety thresholds has been reported.
Jody C. Cantu +9 more
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Frequencies for Radio Astronomy [PDF]
Nature, 1970 At present the scope of research in radio astronomy is limited by the allocation of frequencies, some of which have to be shared with other radio services. When the International Telecommunications Union reconsiders all frequency allocations next year, astronomers are hoping for an improvement.
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