Temperature controlled attenuator
US8386986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2010 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | May 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a temperature controlled attenuator is disclosed having an attenuation circuit and a control circuit. The attenuation circuit includes a series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with a variable impedance level having a continuous impedance range. Furthermore, the temperature controlled attenuator includes a temperature controlled circuit that adjusts an attenuation level of the attenuation circuit in accordance to an operating temperature. In this manner, the attenuation level of the temperature controlled attenuator is temperature dependent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.