Dynamic device switching (DDS) of an in-phase RF PA stage and a quadrature-phase RF PA stage
US8831544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0416
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An in-phase radio frequency (RF) power amplifier (PA) stage and a quadrature-phase RF PA stage are disclosed. The in-phase RF PA stage includes a first group of arrays of amplifying transistor elements and the quadrature-phase RF PA stage includes a second group of arrays of amplifying transistor elements. A group of array bias signals is based on a selected one of a group of DDS operating modes. Each of the group of array bias signals is a current signal. The in-phase RF PA stage biases at least one of the first group of arrays of amplifying transistor elements based on the group of array bias signals. Similarly, the quadrature-phase RF PA stage biases at least one of the second group of arrays of amplifying transistor elements based on the group of array bias signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.