Radar-absorbing fiber-reinforced structure using plasma discharge of fiber-reinforced composite and stealth system including the same

A radar-absorbing fiber-reinforced structure comprising a fiber composite discharging part, the fiber composite discharging part including a first electrode part and a second electrode part, which are spaced apart from each other by a dielectric layer and are connected to a power supplier or grounded to receive different voltages,

• wherein the fiber composite discharging part is configured to discharge plasma in response to a voltage difference between a voltage applied to the first electrode part and a voltage applied to the second electrode part, thereby changing a reflected wave or transmitted wave of a radar incident on the radar-absorbing fiber-reinforced structure to reduce reflectivity of the radar,
• wherein
• the first electrode part includes a first group of conductive fibers, which are grounded,
• the second electrode part includes a second group of conductive fibers, which are electrically insulated from and spaced apart from the first group of conductive fibers and connected to the power supplier,
• the first group and the second group of conductive fibers extend in a direction parallel to a surface on which the radar is incident, and
• at least one of the first electrode part and the second electrode part include a conductive fiber having a tensile strength equal to or more than 0.5 GPa.