Sökning: "virtual cathode oscillator"

Hittade 2 uppsatser innehållade orden virtual cathode oscillator.

1. 1. Theoretical analysis and simulation of microwave-generation from a coaxial vircator

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

   Författare :Martin Hägg; [2017]
   Nyckelord :HPM; high power microwaves; vircator; virtual cathode oscillator; cst; particle-in-cell; PIC; particle studio; microwave weapon; HPM; high power microwaves; virtual cathode oscillator; HPM; mikrovågor; strålvapen; CST; particle in cell; BAE systems; virkator; strålkälla; högeffekts mikrovågor; koaxiell virkator;

   Sammanfattning : High-power microwave, HPM, systems can be used as non-lethal weapons with the ability to destroy or disturb electronics, by damaging internal circuits and inducing high currents. Today microwave sources are being developed with peak powers exceeding 1 GW, one of these devices is the vircator, a narrowband source which is unique to the HPM community. LÄS MER

3. 2. Frequency tunability of axial cavity vircators and double anode vircators

   Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

   Författare :Jakob Petrén; [2016]
   Nyckelord :;

   Sammanfattning : This master thesis investigates the possibility of constructing a continu-ously tuneable virtual cathode oscillator (vircator), which can be used as a radiation source in high power microwave susceptibility testing carried out by the electrophysics group at the Swedish Defence Research Agency (FOI). To determine if a vircator can be made continuously frequency tuneable in a 10 %bandwidth around a central frequency lying within the S-band two vircator designs, the first an axial cavity vircator and the second a double anode vir-cator, are evaluated with electromagnetic particle-in-cell simulations using the software Magic3D. LÄS MER