输出功率可调的P波段固态发射机设计  

Design of P-band High Power Solid State Transmitter with Output Power Performance Adjustable

作　　者：张毅[1] 张勇[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2010年第7期92-94,共3页Modern Radar

摘　　要：介绍了一种应用于P波段,具有输出增益可调的固态发射机。它是建立在其他输出功率可调发射机的基础上,运用了输入功率相位可调,输出功率矢量合成的原理。文中首先分析了其技术指标、系统组成和工作原理。发射机可工作于最大脉宽300μs,最大占空比15%。在无相位差的条件下,可获得4.5kW的峰值功率。通过调节前级放大器中的移相器的相位,输出端可获得20dB的动态增益范围。实际测试数据与理论数据基本一致。A new kind of P-band high power solid state transmitter is described in this paper, of which output power can be modulated. It makes use of the principle of input power phase adjustable and output power vector synthesis based on the other transmitter with output power adjustable. Its technical performance,the system constitution and the operation principles are analyzed as all emphasis.The pulse width is 300 μs and maximum duty cycle is 15%. On the condition of same phase input, the maximum output peak power can be up to 4.5 kW. Adjustable gain range is up to 20 dB by adjusting digital shifter. Numerical results fit real data based on actual measurement.

关 键 词：功率调制 数字移相器 魔T 功放模块 

分 类 号：TN834[电子电信—信息与通信工程]