S19-234 High Efficiency, High Power, Variable Output of Multiple Power Amplifiers Researchers at Stanford have developed a method to tune power amplifier circuits to directly connect their output power (and adjust the combined output power) without any additional power combiner network. Kawin Surakitbovorn Juan Rivas-Davila Lei Gu
S09-042 MRI - A Frequency Offset Cartesian Feedback System An amplifier system providing improved Cartesian feedback is provided. A complex band pass error amplifier is provided. Marta Zanchi Greig Scott