Sökning: "Impedansmatchning"

Hittade 3 uppsatser innehållade ordet Impedansmatchning.

  1. 1. Towards a method for antenna impedance tailoring through shapeoptimization, with a bound on the associated cost-function

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

    Författare :Cem Kesici; [2020]
    Nyckelord :;

    Sammanfattning : Over the last years, there has been an interest in designing antennas that operateat higher frequencies. In most applications, these antennas work jointly withPower Amplifiers. However, most commercial Power Amplifiers have a nonstandardoptimal load-pull impedance in their optimal operating frequencies. LÄS MER

  3. 2. Energy harvesting from ambient WiFi energy : A method of harvesting and measuring ambient WiFi energy

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

    Författare :Alpha Fofana; Carl Mossberg; [2019]
    Nyckelord :Energy harvesting; Rectenna; Impedance matching; Embedded system; IoT; WiFi; Sustainable Energy; Utvinna energi; Impedansmatchning; Inbyggda system; IoT; WiFi; Hållbar utveckling;

    Sammanfattning : The aim of this thesis was to investigate the question of how to harvest RF energy and if we can harvest enough RF energy for it to be useful in an application. It is aimed towards sensor node applications, commonly used in a typical office environment. The WiFi band was chosen since it is omnipresent in the same environment. LÄS MER

  4. 3. Using DSP technology to improve sound quality in active speakers

    Magister-uppsats, Institutionen för teknik och naturvetenskap; Tekniska högskolan

    Författare :Mattias Magnusson; [2010]
    Nyckelord :;

    Sammanfattning : Aditus Science has developed a system to improve the sound quality in speaker systems, using DSP technology. Software developed in MATLAB is being used to make measurements of the speakers via microphones. Based on those results, the parameters for the signal processing in the DSP can be set. LÄS MER