Abstract
The effects of antenna configuration on the thrust performance of a 30-W-class miniature microwave discharge ion engine were investigated. The ion beam currents were measured for three different antenna configurations such as disc, star, and cross antennas. The ion beam current of the star antenna was the largest among the three configurations and that of the disc antenna was the smallest. The effect of good coupling with plasma exceeded the effect of large losses on the antenna surface under low mass flow rate with low plasma density. The effect of large losses on the antenna surface also exceeded the effect of good coupling with plasma under high mass flow rate. The results showed that the optimum antenna shape depends on the desired mass flow level due to the tradeoff between microwave plasma coupling efficiency and surface-area recombination. It was also found that the disc antenna was the best at low mass flow rate and the star antenna was the best at high mass flow rate.
| Original language | English |
|---|---|
| Pages (from-to) | 925-928 |
| Number of pages | 4 |
| Journal | Journal of Propulsion and Power |
| Volume | 22 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jul 1 2006 |
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All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Fuel Technology
- Mechanical Engineering
- Space and Planetary Science
Cite this
Antenna configuration effects on thrust performance of miniature microwave discharge ion engine. / Yamamoto, Naoji; Masui, Hirokazu; Kataharada, Hiroshi; Nakashima, Hideki; Takao, Yoshiyuki.
In: Journal of Propulsion and Power, Vol. 22, No. 4, 01.07.2006, p. 925-928.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Antenna configuration effects on thrust performance of miniature microwave discharge ion engine
AU - Yamamoto, Naoji
AU - Masui, Hirokazu
AU - Kataharada, Hiroshi
AU - Nakashima, Hideki
AU - Takao, Yoshiyuki
PY - 2006/7/1
Y1 - 2006/7/1
N2 - The effects of antenna configuration on the thrust performance of a 30-W-class miniature microwave discharge ion engine were investigated. The ion beam currents were measured for three different antenna configurations such as disc, star, and cross antennas. The ion beam current of the star antenna was the largest among the three configurations and that of the disc antenna was the smallest. The effect of good coupling with plasma exceeded the effect of large losses on the antenna surface under low mass flow rate with low plasma density. The effect of large losses on the antenna surface also exceeded the effect of good coupling with plasma under high mass flow rate. The results showed that the optimum antenna shape depends on the desired mass flow level due to the tradeoff between microwave plasma coupling efficiency and surface-area recombination. It was also found that the disc antenna was the best at low mass flow rate and the star antenna was the best at high mass flow rate.
AB - The effects of antenna configuration on the thrust performance of a 30-W-class miniature microwave discharge ion engine were investigated. The ion beam currents were measured for three different antenna configurations such as disc, star, and cross antennas. The ion beam current of the star antenna was the largest among the three configurations and that of the disc antenna was the smallest. The effect of good coupling with plasma exceeded the effect of large losses on the antenna surface under low mass flow rate with low plasma density. The effect of large losses on the antenna surface also exceeded the effect of good coupling with plasma under high mass flow rate. The results showed that the optimum antenna shape depends on the desired mass flow level due to the tradeoff between microwave plasma coupling efficiency and surface-area recombination. It was also found that the disc antenna was the best at low mass flow rate and the star antenna was the best at high mass flow rate.
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U2 - 10.1007/s10350-006-0534-1
DO - 10.1007/s10350-006-0534-1
M3 - Article
AN - SCOPUS:33746916819
VL - 22
SP - 925
EP - 928
JO - Journal of Propulsion and Power
JF - Journal of Propulsion and Power
SN - 0748-4658
IS - 4
ER -