Patent ID: 9343271
Filing Date: 2016-05-17
CPC Classification: H01J,H05H

Claim Text:
1. Apparatus for generating a plasma by microwaves, which are generated by multiple resonant cavities ( 4 ), arranged concentrically around the centre axis of an anode block, which axis corresponds to the z-axis of a cylindrical coordinate system, and coupled out of one or more resonant cavities, separated by an uneven number of resonant cavities, via at least one or more hollow waveguides ( 5 ) comprising: said resonant cavities are distributed inside an evacuated, electricity conducting anode block ( said resonant cavities are of cylindrical form and said resonant cavities have their axis of symmetry oriented parallel to the azimuthal coordinate of the cylindrical coordinate system said resonant cavities is connected to the excavation ( said coupled out microwaves are injected into a separated plasma chamber ( said microwaves generate a plasma under standard atmospheric conditions.