摘要
This work presents a compact planar balun for push-pull power amplifiers, designed for high-power microwave-material interaction studies. The printed balun enables easier fabrication and reduced size, while offering strong temperature stability for power applications. The amplifier delivers 688 W output power at 915 MHz. The amplifier system includes a circulator, two high-directivity directional couplers, temperature and current monitors, and a precision control module with internal protection and reflection monitoring. Furthermore, the paper proposes an experiment to leverage the amplifier module's potential. The newly developed push-pull power amplifier presents a promising avenue for microwave-based material processing, with possible implications across diverse fields. An experiment is also proposed to demonstrate the amplifier's potential and highlight its promise for various microwave-material processing applications.