Feasibility of Plasma Cloaking for Satellite
Shen Shou Max Chung (鍾慎修)1,2*, Yu-Chou Chuang (莊彧宙)3
1Institute of Biophotonics Engineering, National Yang Ming University, Taipei, Taiwan
2Center for Space Remote Sensing Research, National Central University, Taoyuan, Taiwan
3Department of Communication Engineering, Yuan Ze University, Taoyuan, Taiwan
* presenting author:Shen Shou Max Chung, email:maxchung@so-net.net.tw
Satellite is the most important link in modern military network, and is the first thing to come under attack in future conflict between superpowers. Recent advancements in anti-satellite technology have rendered satellites vulnerable to missile attack or directed energy assault. Traditional RF stealth techniques like shape morphing or application of radar absorption materials are not easy to implement in the harsh space environment. Plasma absorption or attenuation of electromagnetic waves provides another option to hide satellites from radar observation. The fundamentals of radar cross section (RCS) engineering are reviewed, followed by the plasma-electromagnetic wave interaction. A scheme to cloak satellite with plasma spray is described, and its effects on RCS evaluated with Multi-level Fast Multipole Method (MFLMM) and Finite Difference Time Difference (FDTD) codes. Results indicate several dBsm of RCS reduction in main threat direction is possible, but accompanied by increase of RCS in other directions. The energy consumption and plasma generation methods are discussed as well.

Keywords: radar cross section, RF stealth, satellite, plasma source, plasma stealth