Development of small microwave discharge ion thruster

H. Kataharada, Y. Takao, N. Yamamoto, H. Ijiri, H. Nakashima

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A small-scale ion thruster of 18 mm in diameter for space propulsion has been developed and tested. Microwave discharge plasma is produced by a star-type antenna. Two tests were carried out. First, in order to optimize the ion source configuration, we measured the ion saturation current on various conditions measured for the indicator of the performance of an ion source. Next, to estimate the thrust, the ion beam was extracted and extracted ion beam current was measured with obtained optimization configuration. The maximum ion saturation current of 45 mA was obtained at Ar gas flow rate of 1.4 sccm and input microwave power of 28 W. The maximum extracted ion current of 22 mA was obtained at Xe gas flow rate of 0.6 sccm and input power of 18 W.

Original languageEnglish
Pages (from-to)605-608
Number of pages4
JournalThin Solid Films
Publication statusPublished - May 26 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'Development of small microwave discharge ion thruster'. Together they form a unique fingerprint.

Cite this