High efficiency outphasing transmitter for electronically scanned arrays
US9137067B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2013 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Dec 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
High efficiency transmitters for electronically scanned arrays (also known as electronically steered antennas or ESAs) are disclosed. The transmitters in accordance with the present disclosure utilize outphasing power amplification. In one embodiment, the outphasing transmitter includes a phase shifting device. The phase shifting device is configured for phase shifting an input signal and providing a pair of phase shifted signals for each emitting element of the EAS. The outphasing transmitter also includes an outphasing power amplifier associated with each emitting element. Each outphasing power amplifier is configured for separately amplifying the pair of shifted signals for each emitting element and combining the separately amplified signals for each emitting element for transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.