Radiation power limiter
US6747607B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1988 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Feb 16, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/144
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is an arrangement for shielding electronic sensors from undesired microwave or millimeter wave radiation. In this arrangement, reflective element is disposed in the sensor path to intercept incoming signals. The reflective element has a pluraity of adjacent parallel ridges therein having sloped faces angled for reflecting incoming desired infrared radiation onto the sensor. The width of the ridges are selected so that desired signals will be reflected by the sloped ridge faces but undesired microwave or millimeter radiation will be reflected by the overall major surface of the mirror. Accordingly, undesired microwave or millimeter radiation will be reflected away from the sensor by the overall front major surface thereby preventing the sensor from being damaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.