Programmable attenuators
US4795960A · kind A · utility
9Cited by
7References
14Claims
0Family size
Inventor
Key dates
| Filing date | Dec 2, 1986 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Dec 2, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/227
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Programmable attenuators including DPDT relays or pairs of SPDT relays with terminals which are interconnected through conductors and attenuator sections disposed on opposite sides of grounded isolation elements, and so configured and supported by printed circuit boards or the like as to provide very high isolation while obtaining flat response characteristics up to very high frequencies, in the megahertz range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.