Results 21 to 30 of about 1,471,692 (268)
Four-Port 38 GHz MIMO Antenna with High Gain and Isolation for 5G Wireless Networks
Sensors, 2023 In this paper, a 38 GHz 4-port multiple-input multiple-output (MIMO) antenna with considerable isolation and gain enhancement for 5G applications is introduced.
Ahmed A. Ibrahim +3 more
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High-Gain Wideband Metasurface Antenna With Low Profile
IEEE Access, 2019 In this paper, a novel compact wideband and high-gain antenna based on metasurface is proposed. The antenna is an octagon with a side length of 32.3 mm and a height of 5.6 mm.
Hao Bai, Guang-Ming Wang, Ting Wu
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IEEE Access, 2023 Radial Line Slot Array (RLSA) antennas have appealing features including high gain and high efficiency combined with a low profile. Especially by highlighting their structural simplicity, RLSA antennas can be good competitors to reflector antennas if the
Onur Cumurcu +2 more
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High Gain Placental Cardiovascular Control
Experimental Biology and Medicine, 1977 SummaryThe placentas of eight near-term goats were perfused with blood containing C2H2. The adult goats breathed gas containing N2O. Catheters were placed in a maternal femoral artery and uterine vein. Knowledge of the perfusion rate and N2O and C2H2 concentrations in the maternal artery, uterine vein, umbilical arteries, and umbilical veins, permitted
J H, Rankin, D S, Dhindsa, J, Metcalfe
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High-gain quantum free-electron laser: Emergence and exponential gain [PDF]
Physical Review A, 2019 We derive an effective Dicke model in momentum space to describe collective effects in the quantum regime of a free-electron laser (FEL). The resulting exponential gain from a single passage of electrons allows the operation of a Quantum FEL in the high-gain mode and avoids the experimental challenges of an X-ray FEL oscillator.
Kling, P. +4 more
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IEEE Access, 2018 This paper describes a beam-switching antenna with high gain and flexible control of beam numbers based on frequency selective surfaces (FSSs). The proposed antenna is composed of an omnidirectional monopole antenna, a hexagon FSS screen, and six ...
Jinxin Li +3 more
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IEEE Access, 2018 In this paper, an aperture efficient wideband high-gain patch antenna is designed using a novel multilayer-based metamaterial structure combined with a reactive impedance surface (RIS)-backed patch antenna.
Basudev Majumder +2 more
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IEEE Access, 2019 The development of wireless and satellite communication has led to a demand for high-performance microwaves and mm-wave components in terms of cost, losses, and fabrication complexity.
Syed M. Sifat +3 more
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High Refractive Index Metamaterial Superstrate for Microstrip Patch Antenna Performance Improvement
Frontiers in Physics, 2020 We propose a high refractive index metamaterial (HRIM)that is composed of two identical patch arrays symmetrically etched on both sides of a dielectric plate.
Xi Gao, Yan Zhang, Simin Li
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High-Gain Magnetized Inertial Fusion
Physical Review Letters, 2012 Magnetized inertial fusion (MIF) could substantially ease the difficulty of reaching plasma conditions required for significant fusion yields, but it has been widely accepted that the gain is not sufficient for fusion energy. Numerical simulations are presented showing that high-gain MIF is possible in cylindrical liner implosions based on the MagLIF ...
Stephen A, Slutz, Roger A, Vesey
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