Results 11 to 20 of about 849,396 (352)

Cryogenic MMIC low noise amplifiers [PDF]

, 2000
Monolithic (MMIC) and discrete transistor (MIC) low noise amplifiers are compared on the basis of performance, cost, and reliability. The need for cryogenic LNA’s for future large microwave arrays for radio astronomy is briefly discussed and data is ...
S. Weinreb, T. Gaier, Jorge E. Fernández, N. R. Erickson, J. Wielgus   +4 more
openalex   +3 more sources

Low-Noise and High-Efficiency Near-IR SPADs in 110nm CIS Technology [PDF]

, 2019
Photon detection at longer wavelengths is much desired for LiDAR applications. Silicon photodiodes with deeper junctions and larger multiplication regions are in principle more sensitive to near-IR photons.
Carmona Galán, Ricardo, Rodríguez Vázquez, Ángel Benito, Vornicu, Ion   +2 more
core   +1 more source

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, D. M. Vavriv, E. V. Bulakh, A. A. Kravtsov   +3 more
doaj   +1 more source

Photonic chip-based low-noise microwave oscillator. [PDF]

Nature
Kudelin I, Groman W, Ji QX, Guo J, Kelleher ML, Lee D, Nakamura T, McLemore CA, Shirmohammadi P, Hanifi S, Cheng H, Jin N, Wu L, Halladay S, Luo Y, Dai Z, Jin W, Bai J, Liu Y, Zhang W, Xiang C, Chang L, Iltchenko V, Miller O, Matsko A, Bowers SM, Rakich PT, Campbell JC, Bowers JE, Vahala KJ, Quinlan F, Diddams SA.   +31 more
europepmc   +2 more sources

Quantum and private capacities of low-noise channels

, 2023
We determine both the quantum and the private capacities of low-noise quantum channels to leading orders in the channel's distance to the perfect channel. It has been an open problem for more than 20 years to determine the capacities of some of these low-
Leditzky, Felix, Leung, Debbie, Smith, Graeme   +2 more
core   +1 more source

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
doaj   +1 more source

Low noise charge injection in the CCD22 [PDF]

, 2004
The inclusion of a charge injection structure on a charge coupled device (CCD) allows for the mitigation of charge transfer loss which can be caused by radiation induced charge trapping defects.
Abbey, AF, Burt, DJ, Holland, AD, Hutchinson, IB, Morris, D, Pool, P, Smith, DR   +6 more
core   +1 more source

On the angular dependence of InP high electron mobility transistors for cryogenic low noise amplifiers in a magnetic field

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, David Niepce, Arsalan Pourkabirian, Giuseppe Moschetti, Joel Schleeh, Thilo Bauch, Jan Grahn   +6 more
doaj   +1 more source

A ${K}$ -Band High-Gain and Low-Noise Folded CMOS Mixer Using Current-Reuse and Cross-Coupled Techniques

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, Jin He, Haomin Hou, Hao Wang, Sheng Chang, Qijun Huang, Yinxia Zhu   +6 more
doaj   +1 more source

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, Shicheng Zhang, Xiaolin Li, Yueping Niu, Shangqing Gong   +4 more
doaj   +1 more source