Single toroid hybrid mode RF phase shifter
US5170138A · kind A · utility
8Cited by
24References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Mar 15, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A miniaturized waveguide mode ferrite RF phase shifter is efficiently transitioned to a matched impedance microstrip transmission line mode at either end to result in an ultra small, efficient and lightweight essentially "planar" phase shifter device having a single ferrimagnetic toroid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.