一种C 波段全固态大功率GaN 微波源研制

Development a C Band All Solid-State High Power GaN Microwave Source

摘要: 采用带6 位移相器功能、输出功率大于30W、增益45dB 带6 位移相器功能的C 波段固态单元GaN 功放模块，通过高效率同轴波导径向空间功率合成方法，研制高功率高效率固态C 波段GaN 微波源，该微波源具有高频、高功率、高效率、高热导率、高可靠、体积小、重量轻等优点。设计举例：研制一种新型大功率C 波段全固态GaN 微波源，其输出功率（CW）1.2kW 、总效率30%、谐波抑制-54.8dBc、杂散-63.69dBc、相位噪声-94.03dBc/Hz@1kHz、移相精度5.6o、同轴波导径向空间功率合成效率95%。

Abstract: By using method of a single C band solid-state GaN power amplifier module unit that consists of 6 bit phase shifter with precision of 5.6 o, its gain of 45dB and the output power is greater than 30W. The way of high efficiency coaxial waveguide radial space power synthesis is developed, The GaN microwave sources possess of excellence in high frequency high power high efficiency high conductivity high reliability small size light weight. The output power (CW) is 1.2kW, the total efficiency 30%, spurious harmonic -63.69dBc and phase noise in -94.03dBc/Hz@1kHz，the phase shifter precision 5.6 o, the coaxial waveguide radial space power synthesis efficiency was 95%.