A composite material and related methods are described, the composite material being configured to exhibit a negative effective permittivity and/or a negative effective permeability for incident radiation at an operating wavelength, the composite material comprising an arrangement of electromagnetically reactive cells of small dimension relative to the operating wavelength. Each cell includes an externally powered gain element for enhancing a resonant response of that cell to the incident radiation at the operating wavelength.
申请公布号
EP1784892(B1)
申请公布日期
2011.10.05
申请号
EP20050815947
申请日期
2005.08.30
申请人
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人
WANG, SHIH-YUAN;KUEKES, PHILIP J.;STRAZINCKY, JOSEPH;ISLAM, M. SAIFUL;WU, WEI