How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters

The overall goal of this procedure is to obtain a microwave plasma torch, which provides ignition without any additional igniters, as well as stable and continuous operation. This is accomplished by first measuring the frequency dependence of the magnetron. The second step is to adjust the resonance frequency of the coaxial resonator of the microwave plasma torch to the sending frequency of the magnetron.

Next, maximize the forward microwave power by adjusting the stubs of the three stub tuner. The final step is to mount the adjusted microwave plasma torch system to the priorly measured magnetron. Ultimately, when the microwave power is supplied, the plasma ignites and can be operated stably and continuously.