Lightweight, low-thickness, durable and reliable multi-band radar stealth-bulletproof integrated metamaterial
US12325224B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 20, 2024 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Aug 20, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/7376
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A lightweight, low-thickness, durable, and reliable multi-band radar stealth-bulletproof integrated metamaterial includes a ceramic layer, an ultrahigh molecular weight polyethylene (UHMWPE) fiber composite bulletproof layer, a graphene-based metamaterial filter layer, an UHMWPE fiber composite attenuation layer, and a carbon fiber composite reflective layer stacked in sequence. The two UHMWPE fiber composite layers are configured to attenuate radar waves. The circuit resonance of the graphene-based metamaterial filter layer is configured to generate a passband and a stopband simultaneously. The bulletproof layer and the attenuation layer are controlled by the graphene-based metamaterial filter layer in terms of working conditions in different radar frequency bands to establish a structure capable of generating λ/4 resonance at both low and high frequencies, so as to arrive at a stealth-bulletproof integrated metamaterial with small thickness and excellent dual-band radar wave absorption capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.