Ka频段160W固态功率放大器的研制
Development of Ka-band 160 W Solid-state Power Amplifier
黄薛龙1
作者信息
- 1. 安徽华东光电技术研究所有限公司 芜湖 241002
- 折叠
摘要
针对Ka频段固态功率放大器合成芯片数量多及产品体积大等问题,介绍了一种八路合成的Ka频段160 W固态功率放大器.功放采用波导-微带双探针和基于微带-魔T的波导功率分配/合成器,将8个GaN功放芯片加以合成,最终实现在27.0 GHz～31.0 GHz工作频带内,连续波输出160 W以上的功率信号,利用模拟预失真器使整机三阶互调指标优于-31 dBc,指标优良.功放输出波导采用标准WR-28接口,具有完善的监控和保护措施,可靠性高,适用于卫星通信等发射系统.
Abstract
In view of the high throughput and wide coverage of Ka-band satellite communication system,a Ka-band 160 W solid-state power amplifier is introduced.The power amplifier adopts the waveguide-microstrip dual-probe design and the wave-guide power distribution/synthesizer based on the micro-strip magic T.The eight GaN power amplifier chips are combined to finally realize the continuous wave output power signal of more than 160 W in the 27.0 GHz～31.0 GHz operating frequency band.Using the analog predistorter,the third-order intermodulation index of the whole machine is better than-31dBc,and the index is excellent.The output waveguide of the power amplifier adopts the standard WR-28 interface,with perfect monitoring and protection mea-sures,high reliability,and is suitable for satellite communication and other launch systems.
关键词
Ka频段/波导-微带双探针/微带-魔T合成/模拟预失真/可靠性高Key words
Ka-band/waveguide-microstrip double probe/microstrip-magic T synthesis/analog predistortion/high reli-ability引用本文复制引用
基金项目
安徽省中央引导地方科技发展专项(202101d13050004)
安徽省科技重大专项项目(2021d05050005)
出版年
2024
国家科技期刊平台
NSTL
万方数据