Apparatus and methods related to ferrite based circulators
US9214712B2 · kind B2 · utility
14Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2012 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Dec 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/485
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods related to ferrite based circulators are disclosed. A ferrite disk used in a circulator can be configured to reduce intermodulation distortion when routing radio-frequency signals having closely spaced frequencies. Such a reduction in intermodulation distortion can be achieved by adjusting magnetization at the edge portion of the ferrite disk. By way of an example, a ferrite disk with a reduced saturation magnetization (4 PiMs) edge portion can reduce intermodulation distortion. Example configurations with such a reduced 4 PiMs edge portions are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.