Sökning: "Metallic return"

Hittade 3 uppsatser innehållade orden Metallic return.

  1. 1. Compact Ku-band Microwave Filters Realised using Suspended Integrated Stripline Technology

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Henrik Åkerberg; [2023]
    Nyckelord :Suspended Substrate Stripline; Microwave filter; Low Profile; Quasi-Planar; Bandpass Filter; Hängande-Substrat-Stripline; Mikrovågsfilter; Låg profil; Kvasi-planar; Bandpassfilter;

    Sammanfattning : As the fifth generation of telecommunications is deployed, and the number of devices transmitting in the microwave bands grows, effective filtering technologies are becoming ever more important. When a filter is designed, some performance trade-offs have to be made, and one of them is the trade-off between filter size and electrical performance. LÄS MER

  3. 2. LCC Bipole with one station earthed via a large capacitor : Theory and simulations

    Uppsats för yrkesexamina på grundnivå, Mittuniversitetet/Avdelningen för elektronikkonstruktion

    Författare :Johan Jernberg; [2016]
    Nyckelord :HVDC; LCC; Bipole; Metallic return; pole trip.;

    Sammanfattning : If one of the two poles will trip for some reasons in a regular bipolar HVDC transmission without a return conductor, it is necessary to block the other pole temporarily during the transition to a monopolar operation with metallic return, this procedure will take 1-2 seconds and will affect the connected AC networks by extra disturbances. The object of this survey has been to answer the question if it is possible to have a balanced bipolar transmission without a return conductor and during a trip of one pole control it as an HVDC transmission with series connected converters by adding the by-pass switches and the logic for a series connected HVDC converter system which means that a shutdown of the transferred power during the transition phases is not necessary. LÄS MER

  4. 3. C Band Microwave Oscillator

    Master-uppsats, Institutionen för teknik och byggd miljö; Högskolan i Gävle

    Författare :Maaz Rasheed; [2008]
    Nyckelord :;

    Sammanfattning : The work focuses on the study, design and implementation of a C band Microwave oscillator using coaxial resonators, for the transceiver used in wave radar. It involves a literature study discussing different aspects of microwave oscillators, mainly the shielding of the oscillators, frequency pulling due to load and supply pulling, tuning range and the temperature performance of the oscillator. LÄS MER