Search for dissertations about: "multipactor"

Showing result 1 - 5 of 6 swedish dissertations containing the word multipactor.

  2. 1. Microwave Gas and Multipactor Breakdown in Inhomogeneous Fields

    Author : Joel Rasch; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; corona; inhomogeneous fields; multipactor; Microwave breakdown;

    Abstract : Microwave gas and multipactor breakdown remains to be one of the limiting factors for the maximum power in microwave devices. Above a certain electric field strength, the so-called breakdown threshold, free electrons can multiply by making ionizing impacts with neutral gas molecules, or causing secondary emission upon impact with system surfaces. READ MORE

  4. 2. Multipactor in low pressure gas and in nonuniform rf field structures

    Author : Richard Udiljak; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; detection methods; iris; low pressure gas; coax; nonuniform fields; Multipactor; microwave discharge; breakdown; discharge;

    Abstract : Resonant electron multiplication in vacuum, multipactor, is analysed for several geometries where the RF electric field is nonuniform. In particular, it is shown that the multipactor behaviour in a coaxial line is both qualitatively and quantitatively different from that observed with the conventionally used simple parallel-plate model. READ MORE

  5. 3. Microwave Breakdown in Inhomogeneous Fields

    Author : Joel Rasch; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; corona; inhomogeneous fields; Microwave breakdown; multipactor;

    Abstract : Microwave breakdown continues to be a risk in many applications involving the transmission and reception of microwave frequency signals. Satellite communication is especially interesting from the research point of view because of the extreme costs, and limited testing possibilities. READ MORE

  6. 4. Modelling and simulations of multipactor discharges in microwave communication lines

    Author : Alexey Kryazhev; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; secondary emission; multipactor discharge;

    Abstract : .... READ MORE

  7. 5. Multipactor in Low Pressure Gas

    Author : Richard Udiljak; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE