Results 31 to 40 of about 29,736 (309)
An applicable 5.8 GHz wireless power transmission system with rough beamforming to Project Loon
ICT Express, 2016 In recent, Google proposed the Project Loon being developed with the mission of providing internet access to rural and remote areas using high-altitude balloons.
Chang-Jun Ahn
doaj +1 more source
Phased-Array antenna beam squinting related to frequency dependency of delay circuits [PDF]
, 2011 -Practical time delay circuits do not have a perfectly linear phase-frequency characteristic. When these delay circuits are applied in a phased-array system, this frequency dependency shows up as a frequency dependent beam direction (“beam squinting ...
Garakoui, Seyed Kasra +3 more
core +4 more sources
Hybrid Parasitic Linear Array Antenna for Fine Beamsteering Applications
IEEE Access, 2021 This paper presents an antenna that utilizes two beam steering techniques in concert in order to improve the antenna gain and steering resolution. Phased array steering is employed to achieve coarse resolution beam steering while parasitic steering is ...
Iyemeh E. Uchendu +3 more
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A Compact Hemispherical Beam-Coverage Phased Array Antenna Unit for 5G mm-Wave Applications
IEEE Access, 2020 A compact low-profile phased array antenna unit with unidirectional hemispherical beam-coverage for 5G mm-wave applications is proposed in this paper.
Jihoon Bang, Jaehoon Choi
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Quadcopter active phased antenna array
Procedia Computer Science, 2021 Abstract Group use of unmanned aerial vehicles (UAVs) for various purposes allows obtaining many of advantages in various tasks solvation. New advantages of UAVs group use are due the difficulty of separate observation of the group members and, accordingly, the difficulties of tracking and target distribution; the inability to serve the entire large ...
D.A. Milyakov +3 more
openaire +1 more source
Sensors, 2022 This paper presents the application of CORPS (coherently radiating periodic structures) for feeding CRA (concentric rings array) with a reduced number of phase shifters.
Brian Sanchez +4 more
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IEEE Open Journal of Antennas and Propagation, 2020 We propose a 1D beam steering high gain hybrid reflector-phased array antenna system for enhanced data rate wireless communication at Ku-band (12 - 14 GHz). The proposed hybrid antenna system consists of a D = 50 cm offset parabolic-cylindrical reflector
Ghanshyam Mishra +3 more
doaj +1 more source
FEBS Letters, EarlyView.Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman +2 more
wiley +1 more source
Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin
Molecular Oncology, EarlyView.The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla +10 more
wiley +1 more source
Pattern Compensation for Faulty Phased Array Antenna Based on Deep-Learning Technique
IEEE Open Journal of Antennas and PropagationThis study proposes an approach to compensate for pattern distortion in a phased array antenna caused by antenna element failures. The proposed approach utilizes a deep-learning network explicitly trained for a phased array antenna with damaged elements ...
Shu-Min Tsai +4 more
doaj +1 more source