Results 11 to 20 of about 709,749 (267)
HIGH SENSITIVITY 0.5 TO 19.5 GHZ RECEIVER WITH 1.1-GHZ INSTANTANEOUS BANDWIDTH
Radio Physics and Radio Astronomy, 2014 A wideband high sensitivity microwave receiver operating within 0.5 to 19.5 GHz and providing a 1.1-GHz instantaneous bandwidth is described. The receiver shows a noise figure as low as 10 dB and the input third-order intercept point up to 10 dBm as well.
V. A. Volkov +3 more
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Minimally-Invasive Neural Interface for Distributed Wireless Electrocorticogram Recording Systems
Sensors, 2018 This paper presents a minimally-invasive neural interface for distributed wireless electrocorticogram (ECoG) recording systems. The proposed interface equips all necessary components for ECoG recording, such as the high performance front-end integrated ...
Sun-Il Chang, Sung-Yun Park, Euisik Yoon
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AIP Advances, 2019 The InGaAs-InAlAs-InP high electron mobility transistor (InP HEMT) is the preferred active device used in a cryogenic low noise amplifier (LNA) for sensitive detection of microwave signals. We have investigated the angular dependence of the InP HEMT when
Isabel Harrysson Rodrigues +6 more
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IEEE Access, 2019 A high-gain and low-noise folded down-conversion mixer for K-band applications is presented in this paper. Benefited from the folded double-balanced architecture, the transconductance (gm) stage and the switch stage of the mixer can operate in-different ...
Yao Peng +6 more
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Low Noise Balanced Homodyne Detector for Quantum Noise Measurement
IEEE Access, 2022 The research of quantum noise in the interaction of laser and atoms plays a critical role in quantum optical experiments. The measurement of quantum noise is mainly based on the balanced homodyne detection method.
Shubo Lang +4 more
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Transimpedance Amplifier for Noise Measurements in Low-Resistance IR Photodetectors
Applied Sciences, 2023 This paper presents the design and testing of an ultra-low-noise transimpedance amplifier (TIA) for low-frequency noise measurements on low-impedance (below 1 kΩ) devices, such as advanced IR photodetectors.
Krzysztof Achtenberg +4 more
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Appraisal of a low noise electrocardiogram
Journal of the American College of Cardiology, 1983 Two low noise electrocardiographic systems were designed to record low amplitude His-Purkinje potentials in the PR segment and delayed depolarization potentials in the ST-T segment from the body surface on a beat to beat basis. In one system, a bipolar electrode was utilized and the noise level was optimally reduced to 2 to 2.5 microV by a combination ...
El-Sherif, Nabil +3 more
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A High-Temperature, Low-Noise Readout ASIC for MEMS-Based Accelerometers
Sensors, 2019 This paper presents the development and measurement results of a complementary metal oxide semiconductor (CMOS) readout application-specific integrated circuit (ASIC) for bulk-silicon microelectromechanical system (MEMS) accelerometers. The proposed ASIC
Min Qi, An-qiang Guo, Dong-hai Qiao
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ESTIMATING THE SPECTRAL DENSITY OF FLICKER NOISE OF LOW-NOISE OSCILLATORS AT INFRA-LOW FREQUENCIES [PDF]
Radio Physics and Radio Astronomy, 2022 Subject and Purpose. Designers of the research radars intended for detecting manifestations of biological activity of living organisms may be interested in the noise characteristics shown by their oscillators at offsets about 10–2 Hz or even 10–3Hz from ...
V. M. Konovalov, K. O. Lukin
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Low-Noise Techniques in Detectors [PDF]
Annual Review of Nuclear and Particle Science, 1988 We concentrate in this review on the fundamentals of low-noise techniques and on understanding the limits in the charge signal measurements. Charge collection and signal formation in detectors, the origin and properties of noise, noise and amplification of charge, and detectors and signal processing are discussed. (AIP)
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