Search results for "Low-noise"
showing 3 items of 13 documents
On the Theoretical Limits of Noise-Gain-Mismatch Tradeoff in the Design of Multi-Stage Cascaded Transistor Amplifiers
2007
The problem of evaluating the limit performances of cascaded single-ended multi-stage transistor amplifiers is addressed. In particular, a theoretically rigorous approach is proposed for the determination of a family of optimal design curves (ODC's) which express the best (maximum optimal) noise-gain tradeoff that can be achieved - at each operating frequency - when a simultaneous constraint on amplifier input VSWR is accounted for.
Up to Date Version of a Computer-Driven Noise Figure Measuring System for the Simultaneous Determination of Noise, Gain and Scattering Parameters of …
1995
The complete characterization of microwave transistors in terms of (four) noise, (four) gain and scattering parameters sets ({N), {G) and [SI, respectively) vs. frequency and bias conditions (and also vs. decreasing temperature, if required) is the first and most important step to design low noise amplifiers (LNAs). The characterization of the device under test (DUT) in terms of [SI is friendly by means of commercial Automatic Network Analyzer; then the { G) set may be determined by computation.
A New Front-End High-Resolution Sampling Board for the New-Generation Electronics of EXOGAM2 and NEDA Detectors
2015
19th Real Time Conference (RT) -- MAY 26-30, 2014 -- Nara, JAPAN WOS: 000356458000028 This paper presents the final design and results of the FADC Mezzanine for the EXOGAM (EXOtic GAMma array spectrometer) and NEDA (Neutron Detector Array) detectors. The measurements performed include those of studying the effective number of bits, the energy resolution using HP-Ge detectors, as well as timing histograms and discrimination performance. Finally, the conclusion shows how a common digitizing device has been integrated in the experimental environment of two very different detectors which combine both low-noise acquisition and fast sampling rates. Not only the integration fulfilled the expected …