Yig component
US5517161A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Oct 21, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A YIG component for providing a microwave frequency output signal has a cavity holding an electromagnetic circuit defining an air gap between a pair of pole pins. The cavity having a tuning coil for generating a homogeneous magnetic field in the air gap, and further holding a YIG unit comprising a carrier; at least one ferrite crystal arranged in the air gap; and an interface connected to the ferrite crystal or crystals for providing the microwave frequency output signal. A magnetic core is included in the electromagnetic circuit and comprises the pole pins combined with magnetic flux closing path elements shaped as bars, the pole pins and the bar-shaped elements forming an open structure. The YIG component includes a support housing made of a nonmagnetic material having formed therein the above-mentioned cavity and having inside the cavity integral precision-tooled surfaces for the carrying and relative positioning of the electromagnetic circuit and the YIG unit. The surfaces comprise a first positioning seat for the magnetic core and a second positioning seat for the carrier, the core and the carrier being thus supported separately by the support housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.