Results 21 to 30 of about 5,099,079 (342)
Frontiers in Physiology, 2012 Figure-ground (FG) segmentation is the separation of visual information into background and foreground objects. In the visual cortex, FG responses are observed in the late stimulus response period, when neurons fire in tonic mode, and are accompanied by ...
August eRomeo +4 more
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IET Networks, 2020 A novel design of reconfigurable circularly polarised antenna is proposed and developed in the present work. The circularly polarised antenna consists of two linearly polarised inverted‐L antenna elements with double‐folded arms. To improve the impedance
Padakandla Chenna Praveen Kumar +1 more
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50-nm T-gate metamorphic GaAs HEMTs with fT of 440 GHz and noise figure of 0.7 dB at 26 GHz [PDF]
, 2005 GaAs-based transistors with the highest f/sub T/ and lowest noise figure reported to date are presented in this letter. A 50-nm T-gate In/sub 0.52/Al/sub 0.48/As/In/sub 0.53/Ga/sub 0.47/As metamorphic high-electron mobility transistors (mHEMTs) on a GaAs
Elgaid, K. +5 more
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A Low Power CMOS UWB LNA with Sub-1V Supply Voltage and Noise Cancellation Technique [PDF]
مجله مدل سازی در مهندسیLow noise amplifiers (LNA) in RF receivers are usually the first block after the antenna that amplify the signal received from the antenna with negligible noise and distortion.
Mehdi Alinejad, Emad Ebrahimi
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Nature Electronics, 2023 Three-layer heterostructures consisting of an indium gallium arsenide semiconducting film, a lithium niobate piezoelectric film, and a silicon substrate can be used to create acoustoelectric amplifiers that operate at gigahertz frequencies with large non-
L. Hackett +9 more
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Effect of Bismuth Doping on Noise Figure of Er-Doped Silica Fiber
IEEE Photonics Journal, 2023 We investigate the spectral and amplification characteristics of Bi/Er co-doped fiber (BEDF) and Er-doped fiber (EDF), prepared by atomic layer deposition (ALD).
Weizhu Ji +7 more
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Fault-tolerant quantum computation versus Gaussian noise [PDF]
, 2008 We study the robustness of a fault-tolerant quantum computer subject to Gaussian non-Markovian quantum noise, and we show that scalable quantum computation is possible if the noise power spectrum satisfies an appropriate "threshold condition." Our ...
A. P. Hines +8 more
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IEEE Journal of the Electron Devices Society, 2023 In this research, $\Gamma $ -gated AlGaN/GaN HEMTs with different layout designs and heights of gate stems were fabricated to investigate their impacts on the noise performance in the Ka-band.
Ping-Hsun Lee +6 more
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Noise Figure of a Balanced Amplifier [PDF]
IEEE Transactions on Circuits and Systems II: Express Briefs, 2018 Noise figure expression of a balanced amplifier built with lossy divider and combiner and two imperfectly noise-matched component amplifiers is derived analytically using the method of noise waves in terms of the noise parameters of the amplifiers. We present analytical expressions for the three noise parameters of the balanced amplifier.
Akif Alperen Coskun, Abdullah Atalar
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Multi-Way Noiseless Signal Amplification in a Symmetrical Cascaded Four-Wave Mixing Process
Photonics, 2022 According to the fundamental laws of quantum optics, vacuum noise is inevitably added to the signal when one tries to amplify a signal. However, it has been recently shown that noiseless signal amplification can be realized when a phase-sensitive process
Hailong Wang +5 more
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