介绍了一种P波段1 kW微波脉冲功率放大器。功率合成方式采用印制线巴伦,从理论上简单地分析了这种印制线巴伦功率合成技术,阐述了印制线巴伦的应用,并将其实用化。功率器件采用的是具有高增益特性的功率LDMOS器件,实现了该放大器的高增益设计。这种放大器有效地降低了高功率、高增益放大器的尺寸和成本,功放功率大于900 W,增益大于20 dB,尺寸≤222 mm×82 mm×20 mm。 A P wave band 1 kW microwave pulse power amplifier is introduced. The power synthesis method uses the printed line balun, and simply analyzes the printed line balun power synthesis technology theoretically, expounds the application of the printed line balun and realizes it. The power device uses a power LDMOS device with high gain characteristics to achieve high gain design of the amplifier. This amplifier effectively reduces the size and cost of high-power, high-gain amplifiers with amplifier power greater than 900 W, gain greater than 20 dB and size ≤222 mm × 82 mm × 20 mm.