Spiral antenna absorber system
US4085406A · kind A · utility
8Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1976 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Oct 22, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/27
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The radiation absorber system of a unidirectional spiral antenna is provided with a laterally transverse variable radiation absorption density characteristic to control the absolute gain with frequency pattern, i.e. absolute gain versus frequency characteristic, of the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.