GaAs RF signal detection circuit with operational amplifier
US7171171B1 · kind B1 · utility
2Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2004 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Aug 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0475
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A mobile terminal senses transmitted power in a Gallium Arsenide (GaAs) circuit. The GaAs circuit provides a steady reference voltage through the use of an operational amplifier and feedback circuit. The operational amplifier drives the bases of two transistors to create balanced signals that are then used by a detection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.