Patent ID: 6097250
Filing Date: 2000-08-01
Classification: H03F

Abstract:
An amplifier circuit comprising:an input port for receiving a signal;a first balun for splitting the signal into first and second signals;first and second amplifiers coupled to outputs of the first balun for respectively amplifying the outputs of the first balun to generate first and second amplified signals;second and third baluns coupled, respectively, to outputs of the first and second amplifiers for splitting, respectively, each of the first and second amplified signals into in-phase and out-of-phase components;third and fourth amplifiers coupled to outputs of the second balun for respectively amplifying the outputs of the second balun to generate third and fourth amplified signals;fifth and sixth amplifiers coupled to outputs of the third balun for respectively amplifying the outputs of the third balun to generate fifth and sixth amplified signals;a fourth balun for combining the third and fourth amplified signals into a first combined signal;a fifth balun for combining the fifth and sixth amplified signals into a second combined signal; andcombining means for combining the first and second combined signals to generate an amplifier output signal.