新型大功率全固态调制器  

New Kind of High Power All-Solid-State Modulator

作　　者：戴广明[1] 田为[1] 黄军[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《电力电子技术》2004年第5期63-65,共3页Power Electronics

摘　　要：介绍了大功率兆瓦级发射机的调制器种类,描述了采用电子管开关的调制器的工作原理以及新型采用全固态开关的调制器的工作原理,并对两种采用不同开关的调制器的性能进行了对比,介绍了一种可供兆瓦级发射机使用的全固态调制器。The modulator is the core of the high power radar transmitter, it influences directly on the transmitter's performance. In the past, the vacuum-tube was employed as the switch device.The vacuum-tube modulator had complified circuit and needed auxiliary power supply and circuit, so that its volume was big, the filaminent power and plate loss were also large, which resulted in lower efficiency (about 60～70%). Aimed at the mentioned problems, the authors have developed a 20kV/400A all-solid-state modulator. Its peak output power was increaced to 8kW after boosting by means of pulse transformer and the efficiency was more than 90%, so it can completely replace the vacuum-tube modulator. The volume and weight of developed transmitter has decreased by a factor of 3/4, the assist devices applied in transmitter was cuted down to 1/2～1/3. Comparison shown the all-solid-state modulator has perfect prospect in high power transmitter.

关 键 词：调制器 发射机 全固态开关 

分 类 号：TN710[电子电信—电路与系统] TN83