Sökning: "Low-noise amplifier"

Visar resultat 1 - 5 av 35 uppsatser innehållade orden Low-noise amplifier.

  1. 1. Design and Fabrication of a Kinetic Inductance Parameric Amplifier for multi-mode entanglement studies

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Sara Persia; [2022]
    Nyckelord :Parametric amplifier; kinetic inductance; superconducting NbTiN nanowires; Parametrisk förstärkare; kinetisk induktans; supraledanden NbTiN- nanotrådar;

    Sammanfattning : Parametric amplifiers are essential for analyzing and measuring the weak signals generated byquantum circuits at cryogenic temperatures. This project aims to realize a low noise travelingwave parametric amplifier (TWPA) by exploiting the nonlinear current dependence of thekinetic inductance of superconducting NbTiN nanowires. LÄS MER

  3. 2. Cold amplification and fiber coupling of a super-conducting nanowire single-photon detector

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Stéphane Cohen; [2022]
    Nyckelord :Applied Physics; Tilllämpad fysik;

    Sammanfattning : Single-photon detectors are an essential tool for quantum photonics: one can harness the quantum properties of single photons for quantum communication as well as use the detectors in low illumination applications.Superconducting nanowire single-photon detectors offer high detection efficiency over a widerange of wavelengths, low dark counts, and a good timing resolution compared to single-photonavalanche diodes. LÄS MER

  4. 3. A Modular Approach to Design and Implementation of an Active GNSS Antenna

    Master-uppsats, Linköpings universitet/Fysik, elektroteknik och matematik; Linköpings universitet/Tekniska fakulteten

    Författare :Ulrik Hecktor; [2022]
    Nyckelord :GNSS; RTK; circular patch antenna; LNA; stacked patch antenna;

    Sammanfattning : This master’s thesis describes the design, implementation and testing of an active antenna intended for use with global navigation satellite systems. The active antenna is composed of two major parts, a dual-band circular patch antenna and a dual-band low-noise amplifier. To streamline the design process, a modular solution was adopted. LÄS MER

  5. 4. Niobium Ohmic Contacts for Cryogenic Indium Phosphide High-Electron-Mobility Transistors

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Linnéa Bendrot; [2022]
    Nyckelord :Ohmic contacts; high-electron-mobility transistor; InP; Nb films; cryogenic electronics; low-noise amplifier; quantum computing; transfer length method; superconductivity; contact barrier resistance; Ohmska kontakter; högelektronmobilitetstransistorer; indiumfosfid; niob; tunnfilm; kryogen elektronik; lågbrusförstärkare; kvantdatorer; Transfer Length-metod; supraledning; kontakt- barriärresistans;

    Sammanfattning : Ohmic contacts are crucial components in semiconductor devices such as transistors and diodes, and lowering their contact resistance is an important factor in device performance enhancement. This is especially important for low-noise amplifiers (LNAs) where device noise temperature decreases both directly and indirectly with decreasing contact resistance. LÄS MER

  7. 5. Methods of self-interference cancellation in full duplex telecommunication systems

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Henrik Erlandsson; Viktor Sköldheden; [2021]
    Nyckelord :telecommunication; full duplex; self-interference cancellation; electronics; wireless communication; power amplifier;

    Sammanfattning : With the wireless technology evolving quickly, so does the demand of speed and efficiency. This makes the companies look for new and better ways to improve the current systems. One way of improving the present systems would be to employ Full Duplex Technology. LÄS MER