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http://dx.doi.org/10.5139/JKSAS.2015.43.2.118

Design of Single Layer Radar Absorbing Structures(RAS) for Minimizing Radar Cross Section(RCS) Using Impedance Matching  

Jang, Byung-Wook (Graduate School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Park, Jung-Sun (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.43, no.2, 2015 , pp. 118-124 More about this Journal
Abstract
The design of radar absorbing structures(RAS) is a discrete optimization problem and is usually processed by stochastic optimization methods. The calculation of radar cross section(RCS) should be decreased to improve the efficiency of designing RAS. In this paper, an efficient method using impedance matching is studied to design RAS for minimizing RCS. Input impedance of the minimal RCS for the specified wave incident conditions is obtained by interlocking physical optics(PO) and optimizations. Complex permittivity and thickness of RAS are designed to satisfy the calculated input impedance by a discrete optimization. The results reveal that the studied method attains the same results as stochastic optimization which have to conduct numerous RCS analysis. The efficiency of designing RAS can be enhanced by reducing the calculation of RCS.
Keywords
Radar Absorbing Structure; Design Optimization; Radar Cross Section; Impedance matching;
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Times Cited By KSCI : 2  (Citation Analysis)
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