切比雪夫吸波材料的设计与仿真

利用仿真软件HFSS研究了30 MHz～1 GHz频段内碳填充型聚氨酯角锥和三级锥形切比雪夫多级吸波材料的吸波性能。结果表明,碳填充型聚氨酯角锥在100 MHz以上的高频段吸波性能较好,但在低频段吸波性能并不是很理想。在所含碳含量相等的情况下,采用切比雪夫吸波材料后吸波性能得到了明显改善,低频段大多数频点的反射率能够降低3 dB以上。

Chebyshev Multilevel Absorber Design and Simulation

The absorbing properties of the carbon filled polyurethane pyramid and Chebyshev multilevel absorber is investigated using simulation software HFSS.The results show that the absorbing properties of the polyurethane pyramid filled with carbon performs well in the higher frequency over 100 MHz,but is not acceptable at the low end of the frequency band.Compared to traditional pyramids,the absorbing properties of the Chebyshev multilevel absorber has got remarkable improvement with the same carbon loading.And more than a 3 dB improvement can be achieved at the low end of the frequency.