Sökning: "CPW"

Visar resultat 1 - 5 av 13 avhandlingar innehållade ordet CPW.

  1. 1. Fast-tunable resonators and quantum electrical circuits

    Författare :Martin Sandberg; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SEB; tunable; Sisyphus resistance; CPW; Resonator; SCB; qubit; circuit-QED; transmon; SQUID;

    Sammanfattning : In this thesis, measurements on superconducting electrical circuits that exhibit quantum mechanical effects are presented. Nonlinear superconducting circuits can be regarded as artificial atoms with energy spectra that can be engineered. The artificial atoms can be used as quantum bits for quantum computation. LÄS MER

  2. 2. Tunable superconducting transmissionline resonator for qubit coupling

    Författare :Martin Sandberg; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fast tuning; superconductivity; transmission line; SCB; Josephson inductance.; Frequency tunable resonator; SQUID; CPW; aluminium;

    Sammanfattning : In this licentiate thesis design, fabrication, and measurements of tunable superconducting microwave transmission line resonators are described. The resonators are of quarter wavelength type were the tuning is achieved by changing one of the boundary conditions of the resonator through a tunable impedance. LÄS MER

  3. 3. Gap waveguide for packaging microstrip filters & investigation of transitions from planar technologies to ridge gap waveguide

    Författare :Astrid Algaba Brazalez; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parallel plate mode; coupled line filter; microstrip circuit; packaging; Artificial magnetic conductor AMC ; perfect magnetic conductor PMC ; gap waveguide; transition.; coplanar waveguide CPW ;

    Sammanfattning : Gap waveguide technology has proved to constitute an effective alternative for the design of microwave passive components, due to its advantages with respect to traditional planar technologies and standard waveguides. There is no requirement for conductive contact between the two different metal pieces making up a gap waveguide prototype, since one of these pieces makes use of a textured surface that eliminates any possible leakage of the field through the gap to the surface of the other metal piece above it. LÄS MER

  4. 4. Fabrication and Characterization of Superconductive Coplanar Waveguide Resonators Fabrication and Characterization of Superconductive Coplanar Waveguide Resonators

    Detta är en avhandling från Stockholm : Universitetsservice US AB

    Författare :Adem Ergül; KTH.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Coplanar; Waveguide; Resonator; Superconductive; Fabrication; Characterization; NATURAL SCIENCES Physics Condensed matter physics Superconductivity; NATURVETENSKAP Fysik Kondenserade materiens fysik Supraledning;

    Sammanfattning : The objective of this thesis is to evaluate a generic process for fabrication and characterization of the Superconductive coplanar waveguide (CPW) resonators. Superconductive CPW resonators with various lengths and shapes are designed to investigate their electrical and magnetic properties as well as resonance properties and sensitivities. LÄS MER

  5. 5. Growth of Super conducting YBaCuO Thin Films by RF Magnetron Sputtering on LiNbO:Ti Substrates using YSZ Buffer Layer

    Detta är en avhandling från Department of Applied Physics and Electronics, University of Barcelona

    Författare :Jaume Rius i Riu; [1998]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : YBa2Cu3O7-δ (YBCO) with low RF losses has been successfully deposited onto lithium niobate (LNO) to improve the performance of electrooptic Mach-Zender modulators. Epitaxial, c-axis oriented superconducting YBCO thin films have been grown on X-cut LNO single crystals with a yttria-stabilized zirconia (YSZ) buffer layer by RF magnetron sputtering. LÄS MER