Signal time delay magnetostatic spin wave device for phased array antennas
US4912478A · kind A · utility
6Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2682
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phased array radar antenna utilizing signal time delay magnetostatic spin wave devices operable to provide feed line transmit time control for variable length transmission feed lines. The preferred embodiment of an improved phased array radar antenna incorporates ferrite devices controlled by d.c. voltage driven ferroelectrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.