Integrated circuit, communication unit and method for phase adjustment
US8941534B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2009 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated circuit for phase shifting a radio frequency signal, wherein the integrated circuit comprises at least one phase shifter comprising: at least one input for receiving a radio frequency signal, a voltage variable element; and a plurality of active devices operably coupled to the voltage variable element and arranged to receive a variable control voltage. The plurality of active devices comprise at least two active devices coupled in a common base arrangement and arranged to receive the radio frequency signal with the voltage variable element coupling the emitter contacts or source contacts of the at least two active devices, such that a variable control voltage applied to the voltage variable element adjusts a phase of the radio frequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.