Patent ID: 8890410
Filing Date: 2014-11-18
Classification: H05H

Abstract:
1. A plasma generation device, comprising: an ionization unit that ionizes gas in a target space; an electromagnetic wave oscillator that oscillates an electromagnetic wave to be radiated to the target space; and an antenna that radiates the electromagnetic wave supplied from the electromagnetic wave oscillator to a gas ionization region in which gas ionized by the ionization unit is provided, in which the ionization unit ionizes gas and the antenna radiates the electromagnetic wave thereto to generate plasma, wherein a plurality of strong electric field regions are formed around the antenna when the electromagnetic wave is supplied from the electromagnetic wave oscillator, the strong electric field region being a region stronger in electric field than the surrounding area, the ionization unit ionizes gas around the plurality of strong electric field regions, or gas around a plurality of regions in which immediately before strong electric fields come into existence, and the ionization unit comprises a plurality of electric dischargers, disposed corresponding to the plurality of strong electric field regions or the plurality of regions in which immediately before strong electric fields come into existence, and discharges around the regions.