A Broadband Radar Absorber Based On Perforated Magnetic Polymer Composites Embedded with FSS
This paper presents a design method of broadband radar absorber (RA) combing together the features of frequency selective surfaces (FSSs), subwavelength hole array and magnetic absorbing sheet.The absorber is constructed of a periodic array of square conducting patches embedded into a magnetic absorbing substrate perforated with circular hole arrays and backed by a metal ground.The absorption characteristics of the magnetic absorbing substrate are tuned and improved by means of perforating holes and embedding FSSs.After optimizing the dimensions of holes and FSSs, the RA with a thickness of 2.4 mm achieves a reflection coefficient <-10 dB from 6.3GHz to 17.3GHz, which is nearly 3.6 times the bandwidth of the magnetic absorbing substrate.Meanwhile, the weight of RA decreases by 15 % due to the hole perforation, and the reflection coefficient is insensitive to incident angle from 0°-30° for both TE and TM polarization.
Broadband radar absorber frequency selective surfaces (FSSs) magnetic absorber hole array
Linbo Zhang Peiheng Zhou Haipeng Lu Jianliang Xie Longjiang Deng
National Engineering Research Center of Electromagnetic Radiation Control,University of Science and School of Microelectronics and Solid State Electronics,University of Science and Technology of China
国内会议
成都
英文
211-218
2013-11-15（万方平台首次上网日期，不代表论文的发表时间）