Microwave plasma

The term “microwave” refers to electromagnetic radiation with a wavelength between 1mm and 1m. “Frequency” is the quotient of the speed of light and the wavelength – which in this case results in a frequency spectrum from 300 GHz to 300 MHz. Microwave radiation is most well-known from household microwave ovens, which predominately operate at a frequency of 2.46 GHz. Other applications include radar devices, mobile phones, satellite TV and many, many more.

Just like household microwave ovens, our microwave radiation is generated with magnetrons which produce a frequency of 2.46 GHz. The microwave energy is transmitted by wave guides or coaxial cables, which means that the energy does not have to be used at the same place where it is generated.

Our microwave plasma works at atmospheric pressure without the use of electrodes. Since there are no electrodes in the area affected by the plasma, the plasma does not cause any wear and works with virtually any type of gas – including oxygen. Our devices run at power levels from 850 W (cf. househould microwave) up to 10 kW