Results 261 to 270 of about 5,099,079 (342)

A Ka/V Band-Switchable LNA With 2.8/3.4 dB Noise Figure

IEEE Microwave and Wireless Components Letters, 2019
A $0.13~\mu \text{m}$ SiGe BiCMOS band-switchable low noise amplifier (LNA) is developed which can be operated at 28 or 60 GHz. The LNA employs an LC tank at the input to perform dual-band impedance matching, while the output is switched from one band ...
A. A. Nawaz, J. Albrecht, A. Çağrı Ulusoy   +2 more
semanticscholar   +1 more source

A Compact 75 GHz LNA with 20 dB Gain and 4 dB Noise Figure in 22nm FinFET CMOS Technology

Radio Frequency Integrated Circuits Symposium, 2018
This paper presents E-band (71–76 GHz) LNA design in 22nm CMOS FinFET technology. Stacked topology with DC current re-use for 2-stage cascaded LNA results in power efficient design with high performance.
W. Shin, Steven Callender, S. Pellerano, C. Hull   +3 more
semanticscholar   +1 more source

Noise figure measurements on nonlinear devices

Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066], 2001
A study of the effect of a cubic nonlinearity on the Y-factor method for measuring noise figure is performed. By hypothesis, the Y-factor technique does not take nonlinearities into account. It is shown that the presence of the nonlinearity largely influences the measured noise figure value. An alternative, single-tone noise figure measurement setup is
Geens, Alain, Rolain, Yves
openaire   +3 more sources

Noise and distortion figure - an extension of noise figure definition for nonlinear devices

IEEE MTT-S International Microwave Symposium Digest, 2003, 2003
Deals in the integration of additive and nonlinear distortion noise contributions into a single new figure of merit: Noise and Distortion Figure, NDF. In the same way as traditional noise figure, NF, was conceived to be a measure of SNR degradation, NDF is now proposed as its extension to nonlinear systems, as a measure of SINAD degradation.
Lavrador, P.M., Carvalho, N.B. de, Pedro, J.C.   +2 more
openaire   +2 more sources

Impact of Noise Bandwidth on Noise Figure

IEEE Transactions on Instrumentation and Measurement, 2019
Noise figures (NFs) are defined at each frequency of interest over a 1-Hz bandwidth. Their measurements are often performed over bandwidths of a few kilohertzs to a few megahertzs to accelerate the process and to reduce measurement jitter. These wider bandwidths introduce NF errors that can be substantial [>1 dB measured for a 0.4-dB NF low-noise ...
Alexander Sheldon, Leonid Belostotski, Geoffrey Messier, Arjuna Madanayake   +3 more
openaire   +1 more source

Noise figure of m.e.s.f.e.t.s

IEE Proceedings I Solid State and Electron Devices, 1980
The noise figure of a m.e.s.f.e.t. is calculated as a function of drain current using the gradual channel approximation and the Shockley impedance-field technique. The results are conveniently presented as a single universal family of curves with no adjustable empirical factors.
C.R. Brewitt-Taylor, P.N. Robson, J.E. Sitch   +2 more
openaire   +1 more source

EDFA Noise Figure Standard

Optical Amplifiers and Their Applications, 1997
As Erbium Doped Fiber Amplifiers (EDFA) see increasing use in fiberoptic systems, there is a developing requirement to accurately compare and calibrate measurement systems used to characterize these ...
Roger L. Jungerman, James R. Stimple
openaire   +1 more source

Optical noise figure: theory and measurements

OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001
We examine the concept of optical noise figure in to two-port devices. Definitions of noise figure are discussed along with applications of noise figure to circuits incorporating cascades of amplifiers and other optical and optoelectronic devices.
Rodney S. Tucker, Douglas M. Baney
openaire   +1 more source

NOISE FIGURES, NOISE TEMPERATURES, AND SYSTEM SENSITIVITY

1961
Abstract : The definitions of terms used in systems noise work are presented, as well as general techniques of describing noise power resulting from both the source and the excess noise added by the network under consideration. A unique feature presented is a unified development of 7 noise temperatures encountered in this field, with tables showing the
null PHILIP H., Jr ENSLOW
openaire   +1 more source

Intrinsic noise figure derivation for fiber raman amplifiers from equivalent noise figure measurement

Proceedings of the Lightwave Technologies in Instrumentation and Measurement Conference, 2004., 2005
A complete analysis and measurement of the noise figure of Raman amplifiers is reported. The standard noise figure definition derived from the amplified spontaneous emission approach is discussed. A new approach, based on the field fluctuations, is proposed.
B. Bristiel, P. Gallion, Y. Jaouen, E. Pincemin   +3 more
openaire   +1 more source