论文部分内容阅读
为了增强完美吸波体的吸波性能,提出了一种高Q值超薄完美吸波体的设计方法.该方法将基片集成波导技术与一般完美吸波体设计方法有机结合,通过合理添加金属过孔实现了高Q值的完美吸波体设计.利用该方法设计出了厚度0.0065λ、半波功率带宽5.8%的完美吸波体,其吸波率Q值为33.9,比普通完美吸波体吸波率Q值提升了20%以上;其1.5和3 dBsm的雷达散射截面缩减Q值分别提高了54%和67%以上;同时该方法消除了传统设计中的频率偏移问题.实测与仿真结果表明所设计的吸波体具有高Q值特征,也具有良好的雷达散射截面缩减效果,散射截面缩减最高达14 dBsm.仿真和实测验证了设计方法的可靠性.
In order to enhance the absorbing performance of the perfect absorber, a design method of a perfect high-Q thin absorber is proposed.The method integrates the substrate-integrated waveguide with the design method of a perfect absorber, The metal through-hole realizes the perfect absorber design with high Q. Using this method, a perfect absorber with a thickness of 0.0065λ and a half-wave power bandwidth of 5.8% is designed with a Q value of 33.9, which is better than the ordinary perfect absorption The Q value of the wave absorption rate of the wave body is increased by more than 20%; the Q value of radar cross section reduction of 1.5 and 3 dBsm is increased by 54% and 67% respectively; meanwhile, the method eliminates the frequency offset problem in the traditional design. The simulation results show that the designed absorber has the characteristics of high Q, good radar cross section reduction and the reduction of scattering cross section up to 14 dBsm. The reliability of the design method is verified by simulation and measurement.