Sökning: "low noise amplifier"

Visar resultat 11 - 15 av 70 avhandlingar innehållade orden low noise amplifier.

  1. 11. Low Phase Noise GaN HEMT Oscillator Design based on High-Q resonators

    Författare :Mikael Hörberg; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; resonator coupling; reflection oscillator; MMIC; phase noise; cavity resonator; low-frequency noise; GaN HEMT; MEMS;

    Sammanfattning : The thesis considers the design and optimization of oscillators targeting low phase noise, given boundary conditions from the technology. Crucial technology figures are power capability, RF noise figure, low-frequency noise and the quality factor (Q-factor) of the resonator. LÄS MER

  2. 12. Instrumental and observational studies in radio astronomy : low noise amplifier design and methanol maser research

    Författare :Vincent Minier; Chalmers University of Technology; []
    Nyckelord :circumstellar matter; HEMT; matching circuitry design; techniques: interferometric; masers; microwave; low noise amplifier; HII regions; stars: formation;

    Sammanfattning : .... LÄS MER

  3. 13. On the Low Frequency Noise in Ion Sensing

    Författare :Da Zhang; Zhen Zhang; Shili Zhang; Hans Norström; Jörgen Olsson; Michel Calame; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; low frequency noise; ion sensor; ISFET; electrochemical impedance spectroscopy; constant phase element; surface chemistry; CMOS technology; Engineering Science; Teknisk fysik;

    Sammanfattning : Ion sensing represents a grand research challenge. It finds a vast variety of applications in, e.g., gas sensing for domestic gases and ion detection in electrolytes for chemical-biological-medical monitoring. LÄS MER

  4. 14. Low-Noise Amplifier Design for Ultra-Wideband Systems

    Författare :Adriana Serban Craciunescu; Linköpings universitet; []

    Sammanfattning : The low-noise amplifier (LNA) remains a critical block in every receiver front-end. As the development of the widcband, low-power and low-cost wireless systems continues, new LNA topologies and design methodologies have become one of the most interesting challenges in the field of radio frequency system design. LÄS MER

  5. 15. Receiver Front-Ends in CMOS with Ultra-Low Power Consumption

    Författare :Carl Bryant; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; receiver; front-end; sensor networks; CMOS; ultra-low power; low noise amplifier; mixer; voltage-controlled oscillator; frequency divider; bluetooth;

    Sammanfattning : Historically, research on radio communication has focused on improving range and data rate. In the last decade, however, there has been an increasing demand for low power and low cost radios that can provide connectivity with small devices around us. LÄS MER