西安电子科技大学学报（自然科学版）Issue(1)：130-135,6.DOI:10.3969/j.issn.1001-2400.2015.01.021
一种双频超薄吸波结构在微带天线中的应用
Dual-band ultra-thin metamaterial absorber and its application in reducing RCS of the microstrip antenna
摘要
Abstract
A novel ultra-thin dual-band metamaterial absorber is designed.Its absorbing mechanism is illuminated by calculating the effective impedance and analyzing the electric fields as well as currents distributions.Then the absorber is applied to the dual-band microstrip antenna to reduce its in-band RCS (Radar Cross Section).The results show that this absorber achieves high absorption in two frequency bands.Moreover,its absorbing properties are incident angle insensitivity and polarization independence, and when it is loaded to the dual-band microstrip antenna,it can reduce the antenna’s RCS by 8.5 9 dB and 9.9 dB at 4.29 GHz and 6.49 GHz,respectively,which are the working frequencies of the dual-band antenna.There is a good agreement between simulated and measured results,showing that this absorber can be used for the improvement of the dual-band antenna’s in-band invisibility of the antenna.关键词
超材料吸波体/双频带/微带天线/雷达散射截面/超薄Key words
metamaterial absorber/dual-band/microstrip antenna/radar cross section/ultra-thin分类
信息技术与安全科学引用本文复制引用
高军,张浩,曹祥玉,杨欢欢,杨群,李文强..一种双频超薄吸波结构在微带天线中的应用[J].西安电子科技大学学报（自然科学版）,2015,(1):130-135,6.基金项目
国家自然科学基金资助项目(61471389,61271100) （61471389,61271100）
陕西省自然科学基金资助项目(2012JM8003) （2012JM8003）
