rf power amplifier with spectrally clustered nanometer-sized switches

摘要

rf power amplifier with switches with spectrally clustered nanometer dimensions. The invention describes a radio frequency (= rf) power amplifier (20) comprising a coupling matrix (1) comprising a plurality of nanometer sized coupling elements (2; 41; 51), wherein the coupling elements (2,41,51) are grouped into a number n of sub-matrices (sa ~ 1 ~ ... sa ~ n ~), with each sub-matrix (sa ~ 1 ~ ... sa ~ n ~) displaying a specific resonant frequency (f ~ 1 ~ ... f ~ n ~) and a specific attenuation of a mechanical self-oscillation of its coupling elements (2; 41; 51), where for coupling elements (2 ; 41; 51) of each sub-matrix (sa ~ 1 ~ ... sa ~ n ~), there is a stimulation means for stimulating mechanical self-oscillation, and a signal processing unit (22) for controlling the medium. stimulation with pacing pulses having a pulse shape and synchronization calculated by the signal processing unit (22) based on an evaluation of the spectral components of an rf signal a be amplified, namely the amplitudes (c ~ 1 ~ ... c ~ n ~) and phases (sym ~ 1 ~ ... sym ~ n ~) at frequencies (f ~ 1 ~ ... f ~ n ~) corresponding to said specific resonant frequencies. The inventive RF power amplifier provides high efficiency and high linearity, particularly at high RF frequencies.