Title :
Radar cross section of the metal sphere from microwave to the optical frequency
Author :
Ruijun Wang ; Yuliang Qin ; Bin Deng ; Hongqiang Wang
Author_Institution :
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
Considering the frequency dispersion of the complex dielectric permittivity for metals, the accurate radar cross section (RCS) of a copper sphere is given from microwave to the optical frequency. By investigate the effects on the RCS caused by the dispersion of metals, we show that polished copper sphere can be treated as perfectly electrical conductor (PEC) for the RCS prediction at terahertz frequencies.
Keywords :
copper; permittivity; radar cross-sections; RCS prediction; complex dielectric permittivity; frequency dispersion; metal dispersion; metal sphere; optical frequency; perfectly electrical conductor; polished copper sphere; radar cross section; terahertz frequencies; Copper; Dispersion; Optical scattering; Permittivity; Reflectivity;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956119
