Attenuators
US4672336A · kind A · utility
2Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1985 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | May 8, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/227
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An attenuator is in the form of a pad comprising a coating of resistive material which connects an input port, an output port and a pair of linked constant potential ports. The regions of the pad adjacent to the outer edges of the input port are provided with outwardly pointing cusps with curved boundary edges. These reduce current crowding at the edges of the input port, and avoid localized overheating of the adjacent regions of the pad, which could result in pad failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.