Multiple envelope tracking system for an active antenna array
US8265572B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Nov 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/504
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An active antenna array comprises a plurality of transmission paths, a plurality of variable power supply units, and an envelope detection system. The transmission paths are adapted to carry a plurality of similar transmission path signals, and the plurality of transmission paths comprises an amplifier having a power input and a signal input for one of the plurality of similar transmission path signals. The plurality of variable power supply units is connected to the power input of the amplifier for supplying power to the amplifiers. Each of the plurality of variable power supply units comprises an envelope signal input. The envelope detection system is connected to the envelope inputs of the plurality of variable power supply units and adapted to provide a common envelope signal for the plurality of similar transmission path signals to the plurality of variable power supply units. A method for envelope tracking and computer program products for manufacture and method execution are also claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.