Start And Stability Of The Microwave Plasma Thruster Exploration And Research

In the recent decades, it has lasting demand for high performance of all kinds of satellites, probes and space stations .lt makes the electric propulsion have a chance to develop itself afond . Microwave Plasma Thruster (MPT) is a new type of Electric Propulsion (EP) , which has many advantages , such as high efficiency , moderate Specific ImpuI~,long life , well compatible with spacecraft and so on. In MPT system, the microwave resonance cavity is the important part, which is in charge of making better use of the energy by the gas which is for propulsive use. Like the combustion chamber in chemical propulsion, it makes the energy conversion in high efficiency. To develop a potent resonance cavity is the key to all MPT system development. In this paper, a new type of the microwave resonance cavity for producing plasma was introduced. It is concentrated capacity microwave resonance cavity .lts construction form is first used in the EP field. Contrasted with the cylinder TM011 resonance cavity ,which is successfully used in the EP field , this cavity has some unequivocal character At the low electric power and constant press ,100W, it can ignite reliably and propel stably. The content of this paper indude: 1. Doing research on the character of the concentrated capacity microwave resonance cavity and the adaptability of this cavity using in the EP system; 2. Converting the result of theory into the engineering; 3. Analyzing the mode of the resonance cavity; 4. Processing the MPT experiment and analyzing the result...