Abstract: Against the backdrop of the deep development of the fifth generation mobile communication (5G) technology, more complex modulation techniques are constantly emerging, which puts forward stricter requirements for the linearization indicators of communication systems. However, traditional analog predistortion techniques, although having advantages such as simple structure and large bandwidth, are difficult to achieve accurate compensation for nonlinear signals. To address this issue, this paper proposes an analog predistorter with individually adjustable amplitude and phase, which utilizes different combinations of Schottky diodes and varactors to achieve the effect of individually adjustable amplitude and phase. The experiment used a 5G NR signal of 100 MHz to linearize the Doherty power amplifier with a center frequency of 3.5 GHz. The test results indicate that the designed linearizer can accurately compensate for the amplitude and phase distortion of the power amplifier linearization.