Search academic texts

Information × Registration Number 0207U000106, 0106U005072 , R & D reports Title Electron-surfice-wave interaction as a mechanizm of the generation of powerful microwave oscillations. popup.stage_title Head Sosnitskiy Sergiy, Registration Date 10-01-2007 Organization Institute of Radio Astronomy of the National Academy of Sciences of Ukraine popup.description2 A dependence of operation characteristics of magnetrons generating at 8 mm wavelength on the secondary-emission properties of the cold cathode surface was studied by means of particle simulation. It is found that increase of the output power and efficiency due to using materials with higher values of the secondary-emission coefficients saturates. This gives a possibility of using lower-cost materials for cold cathodes manufacturing. A study of the dependence of thermionic emission current on the temperature have shown that it is possible to introduce some changes to the auxiliary cathode design, resulting in a spatial-charge limited operation of the cathode, which in its turn should provide a more stable magnetron operation. A possibility of a more precise modeling of the magnetron cavity within the frames of equivalent circuit approach is found. Product Description popup.authors popup.nrat_date 2020-04-02 Close