Digital tunable inter-stage matching circuit
US9000847B2 · kind B2 · utility
22Cited by
69References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2011 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Sep 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/318
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.