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| Citation: | Zhao Hua, Guo Lixin. Electromagnetic Scattering Characteristics of Fractal Rough Coated Objects in the Terahertz Range[J]. Journal of Radars, 2018, 7(1): 91-96. doi: 10.12000/JR17091
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Electromagnetic Scattering Characteristics of Fractal Rough Coated Objects in the Terahertz Range
doi: 10.12000/JR17091
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Abstract
Based on the physical optics method, the scattering characteristics of fractal rough surface coated objects are studied in the terahertz (THz) range herein. A blunt model based on fractal rough surfaces is built. The surface current is calculated according to the Fresnel reflection coefficient, and the Radar Cross Section (RCS) of the rough coated target is obtained. The RCS of rough and smooth surface targets are compared. Numerical results for a rough coated blunt cone model are provided, and discussed from the perspective of different frequencies and coating thickness values. The results show that the surface roughness of the target has a significant effect on scattering in the terahertz range. -
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References
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- Figure 1. One dimensional fractal rough surface
- Figure 3. Local coordinate systems for PO calculation with coating dielectric
- Figure 4. Bistatic RCS of the verification models
- Figure 5. Mono-static RCS of the PEC cube model
- Figure 2. The roughness surface targets model
- Figure 6. Mono-static RCS of the coated blunt cone model with different incident frequency
- Figure 7. Mono-static RCS of the blunt cone models coated with different thicknesses
- Figure 8. Mono-static RCS of the coating blunt cone models with different incident frequency
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Figure 9. Mono-static RCS of the cylinder models with different
$\delta $ -
Figure 10. Mono-static RCS of the cone-cylinder models with different
$\delta $