Sökning: "noise gain"
Visar resultat 21 - 25 av 198 avhandlingar innehållade orden noise gain.
21. InP High Electron Mobility Transistor Design for Cryogenic Low Noise Amplifiers
Sammanfattning : The InGaAs/InAlAs/InP high electron mobility transistor (InP HEMT) is the superior technology for the most demanding low-noise and high-speed microwave and millimeter-wave applications, in particular in radio astronomy and deep-space communication. InP HEMT has enabled cryogenic low noise amplifier (LNA) designs with noise temperatures about ten times the quantum noise limit from sub GHz up to 120 GHz. LÄS MER
22. Ultra-Low Power InAs/AlSb HEMTs for Cryogenic Low-Noise Applications
Sammanfattning : The InAs/AlSb high electron mobility transistor (HEMT) is an emerging microwave device technology for ultra-low power and low noise applications. Due to the low bandgap (0. LÄS MER
23. Turbocharger Compressor Noise: a Numerical Study
Sammanfattning : Road transport is the primary means of conveyance of passengers and freight in the EU, accounting for 71% and 52% of the totals, respectively. At low speeds and in situations with frequent start-stops and accelerations, i.e. LÄS MER
24. Design Aspects of Fully Integrated Multiband Multistandard Front-End Receivers
Sammanfattning : In this thesis, design aspects of fully integrated multibandmultistandard front-end receivers are investigated based onthree fundamental aspects: noise, linearity and operatingfrequency. System level studies were carried out to investigatethe effects of different modulation techniques, duplexing andmultiple access methods on the noise, linearity and selectivityperformance of the circuit. LÄS MER
25. A new approach for considering the interference impact on digital radio systems from complex interference environments
Sammanfattning : Interference from electrical equipment can severely degrade aco-located digital radio receiver. To avoid such performance degradation, it isnecessary to have estimation methods to predict the influence of an interferenceenvironment on a radio receiver. LÄS MER