Patent ID: 8669829

Claim:
A multi-octave power amplifier, comprising: an impedance matching unit configured to match impedances of a pair of balanced radio frequency (RF) signals applied thereto and output a pair of impedance-matched balanced RF signals, wherein the pair of balanced RF signals comprises a first balanced RF signal and a second balanced RF signal, and wherein the pair of impedance-matched balanced RF signals comprises a first impedance-matched balanced RF signal and a second impedance-matched balanced RF signal; a converting unit configured to convert the pair of the impedance-matched balanced RF signals to an unbalanced RF signal; and a compensation unit configured to compensate at least one rolled-off frequency component of the unbalanced RF signal and output a compensated RF signal; wherein the impedance matching unit comprises a first matching transformer that receives the first balanced RF signal and outputs the first impedance-matched balanced RF signal; and wherein the first matching transformer comprises a first tapered transformer.