Planar substrate ferrite/diode phase shifter for phased array applications
US5144319A · kind A · utility
8Cited by
18References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Mar 14, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/38
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An RF phase shifter combines a non-reciprocal ferrite 180.degree. stage with one or more reciprocal diode phase shifting stages to produce an essentially planar phase shifter that is ultra small, efficient and lightweight. Such phase shifter elements may be used in phased arrays to produce an array offering major improvements over existing planar substrate all diode phase shifters while maintaining the phase gradient between array elements and without switching the ferrite shifter between the transmit and receive modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.