Hamilton Joshua K, Hooper Ian R, Lawrence Christopher R
Department of Physics and Astronomy, University of Exeter, Exeter, Devon, EX4 4QL, UK.
QinetiQ Ltd, Cody Technology Park, Farnborough, GU14 0LX, UK.
Sci Rep. 2021 Apr 27;11(1):9045. doi: 10.1038/s41598-021-88280-x.
In this work, the electromagnetic response of a mathematically interesting shape-a Möbius strip-is presented, along with a ring resonator for comparison. Both resonators consist of a central lossy dielectric layer bounded by perfectly conducting layers. For the case of the Möbius strips, the computational results show that there are a family of half-integer wavelength modes within the dielectric layer. These additional modes result in increased absorption, and a corresponding reduction in the radar cross section. Interestingly, rotational scans show that these modes can be excited over a large angular range. This investigation gives an understanding of the electromagnetic response of these structures, paving the way for future experiments on Möbius strip resonators.
在这项工作中，展示了一种数学上有趣形状——莫比乌斯带的电磁响应，以及一个用于比较的环形谐振器。两个谐振器均由一个由完美导电层界定的中心有损电介质层组成。对于莫比乌斯带的情况，计算结果表明在电介质层内存在一族半整数波长模式。这些额外的模式导致吸收增加，以及雷达散射截面相应减小。有趣的是，旋转扫描表明这些模式可以在很大的角度范围内被激发。这项研究有助于理解这些结构的电磁响应，为未来关于莫比乌斯带谐振器的实验铺平了道路。
