Broadband electromagnetic energy absorber
US5223849A · kind A · utility
31Cited by
8References
72Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1988 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Apr 11, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/0026
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radar absorbing material comprising multiple layers integrated to form a thin flexible and light weight structure. The material includes a substrate disposed thereon antenna elements that are relatively loaded to enable one to construct a device in relatively small and thin size. The broad handling of the device is carried out by multi-layering concepts in which different size antenna patterns are multi-layered with each layer designed to absorb frequencies in s specified range. The antenna elements are selected for their intrinsic broadband properties and to preferably be polarization insensitive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.