Fig. 1. Topology of predistortion circuit

Fig. 2. Constant-gain and -phase compensation curves

Fig. 3. Parallel load circuit model

Fig. 4. Z_L-f curve under constant gain and phase compensation

Fig. 5. Simulation compensation curve of the predistorter at different frequencies

Fig. 6. Simulation compensation curve of predistorter under different V_cc biases at 10GHz

Fig. 7. Photograph of the linearizer

Fig. 8. Measured predistortion circuit results