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. 2023 Aug 11;23(16):7121.
doi: 10.3390/s23167121.

Compensation of Heat Effect in Dielectric Barrier Discharge (DBD) Plasma System for Radar Cross-Section (RCS) Reduction

Jinwoo Jung  1 , Changseok Cho  1 , Minsu Choi  2 , Shinjae You  2 , Jungje Ha  3 , Hyunsoo Lee  3 , Cheonyoung Kim  3 , Ilyoung Oh  4 , Yongshik Lee  1
Affiliations

Compensation of Heat Effect in Dielectric Barrier Discharge (DBD) Plasma System for Radar Cross-Section (RCS) Reduction

Jinwoo Jung et al. Sensors (Basel). .

Abstract

In this study, the problems encountered in radar cross-section (RCS) measurement experiments utilizing a dielectric barrier discharge (DBD) plasma system are examined and an effective solution is proposed. A DBD plasma system generates heat due to the high bias voltage required for plasma generation. The thermal-induced structural deformation of the DBD structure caused by this high voltage and its impact on RCS measurements are analyzed. In addition, techniques for minimizing the thermal-induced deformation and compensation methods for addressing the minimized deformation are proposed. Furthermore, RCS measurements are conducted on two kinds of DBD structures using the proposed method to experimentally demonstrate the improved agreement between the simulation and measurement results. For both structures, the RCS experimental results are in very good agreement with the simulation results, which enables accurate plasma characterization. In conclusion, it can be expected that the proposed method can be used to provide more accurate RCS measurements on various DBD structures that generate high heat.

Keywords: dielectric barrier discharge (DBD); frequency selected surface (FSS); plasma; radar cross-section (RCS).

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Proposed DBD generator: (a) complete structure; (b) top electrode.
Figure 2
Figure 2
Experimental setup for RCS measurement.
Figure 3
Figure 3
Experimental setup for measuring thermal effects in DBD plasma generators: (a) measurement of thermal effects in DBD plasma generators; (b) measurement of electrode deformation in DBD plasma generators.
Figure 4
Figure 4
DBD structure deformation by heat (top view): (a) plasma off; (b) plasma on.
Figure 5
Figure 5
Photographs of the heat sink as the support for the DBD plasma generator: (a) top view; (b) side view.
Figure 6
Figure 6
Fabricated type 1 DBD generator: plasma off state (left), plasma on state (right).
Figure 7
Figure 7
Experimental results (measured (thick) and simulated (thin)): (a) comparison of RCS effect of type 1 DBD plasma generator; (b) comparison of RCS reduction effect of type 1 DBD plasma generator.
Figure 8
Figure 8
Experimental results (measured (thick) and simulated (thin)): (a) comparison of RCS effect of type 2 DBD plasma generator; (b) comparison of RCS reduction effect of type 2 DBD plasma generator.
See this image and copyright information in PMC

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