RF power amplifier with spectrally grouped nanosized switches
US8674762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2010 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Dec 6, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F99/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention describes a radio frequency (=RF) power amplifier (20), comprising—a coupling array (1) comprising a plurality of nano-sized coupling elements (2; 41; 51), wherein the coupling elements (2; 41; 51) are grouped into a number N of sub-arrays (SA-1 . . . SAN), with each sub-array (SA-1 . . . SAN) exhibiting•a specific resonance frequency (f1 . . . fN) and•a specific attenuation of a mechanical self-oscillation of its coupling elements (2; 41; 51), wherein for the coupling elements (2; 41; 51) of each sub array (SA-1 . . . SAN), there is a stimulating means for stimulating a mechanical self-oscillation, —and a signal processing unit (22) for controlling the stimulating means with stimulating pulses having a pulse form and timing calculated by the signal processing unit (22) based on an evaluation of the spectral components of an RF signal to be amplified, namely the amplitudes (C1. . . CN) and phases (Φ1. . . ΦN) at the frequencies (f1 . . . fN) corresponding to said specific resonance frequencies. The inventive RF power amplifier provides a high efficiency and a high linearity, in particular at high RF frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.