Primary radar antenna having a secondary radar (IFF) antenna integrated therewith
US4345257A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1980 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | May 20, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A primary radar antenna has a secondary radar antenna or an IFF antenna integrated therewith. Excellent properties with respect to compactness, radiation and frequency dependency are achieved by providing a bilevel pillbox antenna having radiation deflection on a cylindrical parabolic reflector from one interplate space to another. The lower interplate space has, in proximity of the primary radar signal radiator, which is arranged with its radiation center in the focal line of the parabolic reflector, an additional feed for in-coupling of the IFF signal. The antenna is particularly suited as a combined primary and IFF radar antenna for smaller vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.