Study of 2.5∼10cm Size Microwave Discharge Ion Thruster
Study of 2.5∼10cm Size Microwave Discharge Ion Thruster
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2.5~10cm微波放电离子推进器的研究
DOI：
10.2322/tstj.7.pb_155
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
H. Nakashima
中科院分区：
文献类型：
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作者：
Y. Takao;Akihiro Kugimiya;Shinobu Nagai;N. Yamamoto;Y. Kajimura;H. Nakashima
本文报道了小型微波放电离子推力器研制中的一些实验和数值模拟结果。提高离子推力器性能的关键是微波发射天线的形状和推力器头部的磁结构。采用星星型天线，在输入2.45GHz微波功率为8W，推进剂（氙）流量为0.2sccm的条件下，获得了12mA的引出离子束流。采用粒子网格法和时域有限差分法相结合的数值模拟方法，对离子推力器放电室中的等离子体行为进行了研究。
Several experimental and numerical simulation results for the development of miniature microwave discharge ion thrusters have been reported. The important points to improve the performance of the ion thruster are the shape of the antenna for microwave emission and the magnetic configuration in its thruster head. The extracted ion beam current of 12mA is obtained in conditions of input 2.45GHz microwave power of 8W and propellant (xenon) flow rate of 0.2 sccm with a star type antenna. A numerical simulation code coupling the particle-in-cell method and the finite difference time domain method was used to know plasma behavior in the discharge chamber of an ion thruster.