Title :
A low RCS metasurface for THz applications
Author :
Li Hua Gao ; Nan Xiang ; Jie Zhao ; Di Sha Dong ; Ke Wang ; Qiang Cheng
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
In this paper, we have proposed a method to design a terahertz metasurface which can significantly reduce the backward radar cross section (RCS) within an ultra wide frequency band. Four basic elements have been chosen, with the phase difference between adjacent elements 90 degrees. The far field contributions from these four elements can be proved to be cancelled with each other, leading to significant reduction of radar cross sections as desired. The thickness of the sample is just 30 μm and the simulated backward RCS reduction is above 10 dB from 0.8 to 1.9 THz.
Keywords :
radar cross-sections; terahertz metamaterials; THz application; backward radar cross section reduction; frequency 0.8 THz to 1.9 THz; low RCS metasurface; phase difference; terahertz metasurface; ultrawide frequency band; Arrays; Metamaterials; Microwave theory and techniques; Radar antennas; Radar cross-sections; Scattering; RCS reduction; metasurface; terahertz;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992752
