HIGH POWER TIME DOMAIN MEASUREMENT SYSTEM WITH ACTIVE AMPLIFIER DESIGN HARMONIC LOAD-PULL FOR HIGH EFFICIENCY BASE STATION

A measurement system combining vector corrected waveform measurements with active harmonic load-pull extends, for the first time, real-time experimental waveform engineering up to the 30W power level. This novel harmonic load-pull approach is demonstrated on a 4W LDMOS device. A 20% increase in maximum output power to 4.7Watts without degrading gain and efficiency was realized.