TY - JOUR
T1 - Effect of Driving Frequency on Reduction of Radar Cross Section Due to Dielectric-Barrier-Discharge Plasma in Ku-Band
AU - Song, Sanghun
AU - Cho, Changseok
AU - Oh, Taejoo
AU - Kim, Sangin
AU - Ahn, Wookhyun
AU - Yook, Jong Gwan
AU - Lee, Jangjae
AU - You, Shinjae
AU - Yim, Jinwoo
AU - Ha, Jungje
AU - Bae, Gihun
AU - You, Heung Cheol
AU - Lee, Yongshik
N1 - Publisher Copyright:
© 1973-2012 IEEE.
PY - 2021/5
Y1 - 2021/5
N2 - This study investigates the effect of driving frequency on the ability of a dielectric barrier discharge (DBD) plasma to reduce the radar cross section (RCS) in the Ku-band. Analysis based on the Drude model suggests that the electron density of the plasma will increase with the driving frequency, implying that the plasma will be more effective in terms of RCS reduction. Experimental results based on a multifingered DBD generator reveal that an RCS reduction of up to 4.1 dB is achieved at 18 GHz, which is a 1.3 dB increase due to increasing the driving frequency from 1 to 2 kHz. Finally, the electron density, which is extracted by fitting the simulated RCS results, increased by as much as approximately 330% due to the increase in the driving frequency from 1 to 2 kHz. As the driving frequency increases, the frequency of collision between plasma particles increases. Therefore, the ionization of gas molecules is enhanced, resulting in a higher electron density. The experimental results also suggest that enhancement in the RCS reduction is larger when the electric field intensity between the two electrodes of the DBD generator is greater. As a result, the plasma becomes electromagnetically more lossy and is more effective for reducing the RCS. Experimental results are provided and analyzed based on the electromagnetic parameters used for modeling the plasma.
AB - This study investigates the effect of driving frequency on the ability of a dielectric barrier discharge (DBD) plasma to reduce the radar cross section (RCS) in the Ku-band. Analysis based on the Drude model suggests that the electron density of the plasma will increase with the driving frequency, implying that the plasma will be more effective in terms of RCS reduction. Experimental results based on a multifingered DBD generator reveal that an RCS reduction of up to 4.1 dB is achieved at 18 GHz, which is a 1.3 dB increase due to increasing the driving frequency from 1 to 2 kHz. Finally, the electron density, which is extracted by fitting the simulated RCS results, increased by as much as approximately 330% due to the increase in the driving frequency from 1 to 2 kHz. As the driving frequency increases, the frequency of collision between plasma particles increases. Therefore, the ionization of gas molecules is enhanced, resulting in a higher electron density. The experimental results also suggest that enhancement in the RCS reduction is larger when the electric field intensity between the two electrodes of the DBD generator is greater. As a result, the plasma becomes electromagnetically more lossy and is more effective for reducing the RCS. Experimental results are provided and analyzed based on the electromagnetic parameters used for modeling the plasma.
KW - Dielectric barrier discharge (DBD)
KW - driving frequency
KW - electron density
KW - radar cross section (RCS)
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U2 - 10.1109/TPS.2021.3068462
DO - 10.1109/TPS.2021.3068462
M3 - Article
AN - SCOPUS:85104182985
SN - 0093-3813
VL - 49
SP - 1548
EP - 1556
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
IS - 5
M1 - 9399137
ER -