Radio frequency plasma source for micro satellite

Abstract

The invention discloses a radio frequency plasma source for a micro satellite. The radio frequency plasma source is characterized by comprising a propellant supply system, a radio frequency dischargedevice and an electromagnetic acceleration device, wherein the propellant supply system comprises a propellant storage tank, a pipeline and a flow controller; the radio frequency discharge device comprises a discharge cavity, an antenna and a DC / RF converter, a matcher, a satellite bus and a Faraday shield cylinder, and the electromagnetic acceleration device comprises a magnetic mirror and a magnetic spray pipe. According to the radio frequency plasma source, the ionization rate and the plasma density of the propellant of the plasma source are improved through the radio frequency discharge technology, the plasma is accelerated by the aid of the magnetic mirror and the magnetic spray pipe, and the plasma discharge speed of the plasma source is increased; and the integral structure is compact in design and light, does not need parts such as an electrode, accelerates grid electrode and neutralizer which are prone to corrode and seriously restricts the service life of the plasma source,and the performance and the service life of the plasma source are further improved.

Description

technical field [0001] The invention belongs to the technical field of plasma sources, in particular to a compact radio-frequency plasma source for microsatellites. Background technique [0002] Microsatellites have the advantages of low cost, short R&D cycle, strong scalability, and low technical threshold. In recent years, miniaturized spacecraft represented by microsatellites (<100kg) have become an important development trend in the aerospace field. The booming constellation of hundreds or even thousands of micro-satellites has brought new technological capabilities to the aerospace field and will open up new areas for space exploration. However, the current small propulsion technology of microsatellites lags far behind the development of electronics and sensor technology, which is becoming a major obstacle to the large-scale application of microsatellites. [0003] At present, most microsatellites launched at home and abroad are not equipped with propulsion systems...

AI Technical Summary

Problems solved by technology

[0007] In order to at least solve the problems of large thrust, low specific impulse, large volume, large mass, and low lifespan of the small satellite propulsion system in the above-mentioned prior art, the present invention provides a radio frequency plasma source for small satellites, which can be used as a propulsion device use

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