Broadband amplifier system using a 3dB quadrature combiner to dynamically modulate load impedance
US8670732B2 · kind B2 · utility
3Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2011 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Dec 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/321
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for modulating a radio frequency (RF) carrier signal with a baseband input signal and amplifying the modulated RF carrier signal to provide an amplified RF signal. A quadrature combiner is configured to provide the amplified RF signal at an associated output port. A main amplifier is configured to receive a first modulated RF signal and provide a main output to one of a through port and a coupled port of the quadrature combiner. An auxiliary amplifier is configured to receive a second modulated RF signal and provide an auxiliary output to an isolation port of the quadrature combiner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.