Reduced height waveguide circulator
US4697158A · kind A · utility
25Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1986 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | Apr 15, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/39
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A conductive waveguide structure has a central cavity of full height and input/output ports of a second reduced height emanating therefrom. A smaller ferrite circulator element is centrally disposed within the cavity and has outer extremities spaced from the inner edges of the reduced height input/output ports by a predetermined gap dimension "G" which is chosen to achieve an appropriate impedance match between the impedance of the ferrite element and the higher impedance of the wavguide without the necessity for the usual quarter-wave dielectric impedance matching transformer sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.