Results 31 to 40 of about 1,014,574 (256)
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
doaj +1 more source
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
doaj +1 more source
Circuits and Systems for Wireless Concurrent Communication [PDF]
, 2009 Concurrency is a special kind of analog circuit parallelism that uses a single circuit with necessary bandwidth to process multiple signals at the same time. Concurrent radios offer a higher data rate and improved system diversity.
Wang, Yu-Jiu
core +1 more source
Robust approaches to remote calibration of a transmitting array [PDF]
, 2010 We consider the problem of estimating the gains and phases of the RF channels of a M-element transmitting array, based on a calibration procedure where M orthogonal signals are sent through M orthogonal beams and received on a single antenna.
Bidon, Stéphanie +2 more
core +1 more source
Comparison of Evolutionary Optimization Algorithms for FM-TV Broadcasting Antenna Array Null Filling [PDF]
, 2015 Broadcasting antenna array null filling is a very challenging problem for antenna design optimization. This paper compares five antenna design optimization algorithms (Differential Evolution, Particle Swarm, Taguchi, Invasive Weed, Adaptive Invasive ...
Bruce, Mehrdadi +7 more
core +3 more sources
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
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
doaj +1 more source
FEBS Open Bio, EarlyView.Glioblastoma cells express calcitonin receptor variants (CT receptor isoforms) that may help them survive stress. Using qPCR, transcript‐specific long‐read nanopore sequencing, immunofluorescence co‐localisation and comparative sequence analysis, this study identifies a novel alternatively spliced CALCR transcript that encodes the CTb receptor isoform ...
Pragya Gupta +7 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
Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane +3 more
wiley +1 more source