Abstract
In this study, a method was experimentally verified for further reducing the radar cross-section (RCS) of a two-dimensional planar target by using a dielectric rim in a dielectric barrier discharge (DBD) plasma generator using a frequency selective surface (FSS) as an electrode. By designing the frequency selective surface such that the passbands of the radar signal match, it is possible to minimize the effect of the conductor electrode, in order to maximize the RCS reduction effect due to the plasma. By designing the FSS to be independent of the polarization, the effect of RCS reduction can be insensitive to the polarization of the incoming wave. Furthermore, by introducing a dielectric rim between the FSS electrode and the target, an additional RCS reduction effect is achieved. By fabricating the proposed plasma generator, an RCS reduction effect of up to 6.4 dB in X-band was experimentally verified.
Highlights
Advances in radar technology have led to the development of low observable (LO) technology, which can increase the survivability of an aircraft
We propose a frequency selective surface (FSS) electrode dielectric barrier structure plasma generator applied with a dielectric rim
We proposed the dielectric barrier discharge (DBD) plasma generator, based on FSS electrodes, applicable to a flow environment
Summary
Advances in radar technology have led to the development of low observable (LO) technology, which can increase the survivability of an aircraft. We propose a frequency selective surface (FSS) electrode dielectric barrier structure plasma generator applied with a dielectric rim.
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