Magnetostatic wave device containing attenuation means and the way of making it
US4316162A · kind A · utility
9Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1980 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | Jun 2, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/36
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to bulk or surface magnetostatic wave devices. The invention provides in the ferrimagnetic substrate of such a device, at least one area with absorption increased by a treatment consisting in local sanding of the substrate or its support to produce several defects by the impact of abrasive particles. The invention is applicable to magnetostatic wave lines and filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.