Low threshold power frequency selective limiter for GPS
US6998929B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2003 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Apr 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/23
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A frequency selective limiter operative in a magnetostatic surface mode with a pair of parallel microstrip transducers formed on a substrate and having a length at least equal to the width of an overlaying YIG film ranging in thickness from about 0.1 μm and about 5.0 μm and having a width equal to or less than about 20. mm and which is biased by a permanent magnetic field applied in the plane of the film parallel to the transducers so that magnetostatic surface waves propagate therebetween in the YIG film so as to provide a limiter threshold level in the range of −75 dBm to −35 dBm. The transducers have specific spacings and dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.