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Microwave ionization type cathode for miniature cusped field thruster

A thruster and miniature technology, applied in thrust reversers, using plasma, machines/engines, etc., can solve the problems of slow start of hollow cathode, large flow of working medium of hollow cathode, and impact of thrust of tangential field thruster, etc. Simple structure and high reliability

Active Publication Date: 2021-03-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing hollow cathode has a large flow rate of working fluid, which results in a greater impact on the thrust of the cusp field thruster, and the problem that the existing hollow cathode is slow to start, and further provides a miniature cusp thruster. Microwave Ionization Cathode for Field Thrusters

Method used

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  • Microwave ionization type cathode for miniature cusped field thruster
  • Microwave ionization type cathode for miniature cusped field thruster
  • Microwave ionization type cathode for miniature cusped field thruster

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specific Embodiment approach 1

[0020] Specific implementation mode one: combine Figure 1~3 Describe this embodiment mode, a kind of microwave ionization type cathode that is used for miniature tangential field thruster, it comprises SMA interface 1, cathode shell 2, gas supply pipe 3, emitter 4 and antenna insulator 5, described SMA interface 1 and all The cathode casing 2 is fixedly connected, and the microwave antenna 11 on the SMA interface 1 is located in the cathode casing 2, the emitter 4 is cylindrical, and a gas ionization chamber 21 is formed inside, and the emitter 4 is coaxially penetrated Inside the cathode casing 2 and connected to the cathode casing 2, the antenna insulator 5 is sleeved outside the microwave antenna 11, and the gas supply pipe 3 is sequentially inserted on the cathode casing 2 and the emitter 4 from the outside to the inside, and the gas supply pipe 3 One end communicates with the gas ionization chamber 21.

[0021] The SMA interface 1 is an SMA microwave input interface, wh...

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Abstract

The invention discloses a microwave ionization type cathode for a miniature cusped field thruster, and belongs to the technical field of cusped field thrusters. The invention solves the problem that the thrust of the cusped field thruster is greatly influenced due to large working medium flow of an existing hollow cathode and the problem that the existing hollow cathode is slowly started. An SMA interface is fixedly connected with a cathode shell, a microwave antenna on the SMA interface is located in the cathode shell, an emitter is cylindrical, a gas ionization cavity is formed in the emitter, the emitter coaxially penetrates through the cathode shell and communicates with the cathode shell, an antenna insulator is arranged outside the microwave antenna in a sleeving mode, a gas supply pipe is sequentially inserted into the cathode shell and the emitter from outside to inside, and one end of the gas supply pipe communicates with the gas ionization cavity.

Description

technical field [0001] The invention relates to a microwave ionization cathode for a miniature tangential field thruster, belonging to the technical field of tangential field thrusters. Background technique [0002] The tangential field thruster is a new type of electric propulsion concept emerging internationally, which confines electrons through the tangential magnetic field formed by multi-stage permanent magnets. It has the advantages of high efficiency and long life. The current miniature tangent field thruster can realize the continuous adjustment of the thrust at the micronewton level. It has the feasibility of being applied to tow-free satellites to achieve high-precision orbit control. In the space gravitational wave detection program, the tangential thruster is also used as one of the alternative propulsion schemes for its no-drag control. [0003] The no-drag control in gravitational wave detection in space requires the thruster to have the characteristics of m...

Claims

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Application Information

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IPC IPC(8): F03H1/00
CPCF03H1/0087F03H1/0006F03H1/0012
Inventor 刘辉乔磊曾明
Owner HARBIN INST OF TECH