S波段20kW平均功率正交场放大器研究
发布时间：2018-07-24 21:08
【摘要】：针对S波段长脉宽、大工作比正交场放大器应用需求,仿真优化了短管支撑曲折线慢波结构的色散及耦合阻抗特性,提出了输能结构改进方案,对高频系统进行了优化设计,仿真结果与冷测结果具有较好一致性,冷测结果表明,该设计实现了高频系统的宽频带及高效率。首次采用99.5%细晶氧化铝陶瓷作为控制极与阴极间绝缘介质,解决了绝缘组件大平均电流下击穿问题。首次采用固态放大器和二级正交场放大器搭建了三级放大链测试系统,实现了S波段正交场放大器大工作比测试,热测结果表明,在脉冲宽度300μs、工作比8%条件下,该放大器在300 MHz带宽内脉冲功率大于250 kW,平均功率大于20 kW,全带宽内效率大于52%,该放大器使S波段大功率正交场放大器技术水平迈上了新台阶,也是当前国际上脉冲宽度最宽、工作比最大的正交场放大器产品。
[Abstract]:According to the application requirement of S-band long pulse width and large working ratio orthogonal field amplifier, the dispersion and coupling impedance characteristics of short tube braced zigzag line slow-wave structure are simulated and optimized. An improved scheme of energy transmission structure is proposed, and the design of high frequency system is optimized. The simulation results are in good agreement with the cold test results. The cold test results show that the design realizes the wide band and high efficiency of the high frequency system. For the first time, 99.5% fine-grained alumina ceramic is used as the dielectric between the control pole and the cathode, which solves the breakdown problem of the insulating module under the large average current. For the first time, a three-stage amplifier chain testing system is constructed by using solid-state amplifier and two-stage orthogonal field amplifier. The large working ratio test of S-band orthogonal field amplifier is realized. The results of thermal measurement show that under the condition of 300 渭 s pulse width and 8% working ratio, The amplifier has a pulse power of more than 250kW, an average power of more than 20kW, and a full bandwidth efficiency of more than 52kW. The amplifier has raised the technical level of the S-band high-power orthogonal field amplifier to a new level, and is also the widest pulse width in the world at present. Maximum operating ratio of orthogonal field amplifier products.
【作者单位】： 中国电子科技集团公司第十二研究所;美国普林斯顿大学;
【分类号】：TN722
本文编号：2142657
[Abstract]:According to the application requirement of S-band long pulse width and large working ratio orthogonal field amplifier, the dispersion and coupling impedance characteristics of short tube braced zigzag line slow-wave structure are simulated and optimized. An improved scheme of energy transmission structure is proposed, and the design of high frequency system is optimized. The simulation results are in good agreement with the cold test results. The cold test results show that the design realizes the wide band and high efficiency of the high frequency system. For the first time, 99.5% fine-grained alumina ceramic is used as the dielectric between the control pole and the cathode, which solves the breakdown problem of the insulating module under the large average current. For the first time, a three-stage amplifier chain testing system is constructed by using solid-state amplifier and two-stage orthogonal field amplifier. The large working ratio test of S-band orthogonal field amplifier is realized. The results of thermal measurement show that under the condition of 300 渭 s pulse width and 8% working ratio, The amplifier has a pulse power of more than 250kW, an average power of more than 20kW, and a full bandwidth efficiency of more than 52kW. The amplifier has raised the technical level of the S-band high-power orthogonal field amplifier to a new level, and is also the widest pulse width in the world at present. Maximum operating ratio of orthogonal field amplifier products.
【作者单位】： 中国电子科技集团公司第十二研究所;美国普林斯顿大学;
【分类号】：TN722
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