System for the integration of I.F.F. sum and difference channels in a radar surveillance antenna
US5036336A · kind A · utility
4Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The I.F.F. sum and difference channels are obtained by means of the reflector of the radar, illuminated by primary radiating elements associated with the horn of the primary source of the radar. Furthermore, the signals of the I.F.F. sum and difference channels are suitably mixed to obtain a reduction in the level of the cross-polarized signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.