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设计和开发高效和紧的20千瓦325兆赫固态放大器,用于超导加速器应用
Jitendra Kumar Mishra1, Snigdha Singh1, Sandip Shrotriya1
1Accelerator Control Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
The Review of scientific instruments
|May 8, 2024
概括
一个新的20千瓦固态功率放大器 (SSA) 为325MHz应用程序开发. 这种高效的SSA实现了高功率增益和交流到射频效率,通过模块化冗余表现出强大的性能.
科学领域:
- 电气工程 电气工程
- 射频和微波工程 射频和微波工程
背景情况:
- 固态功率放大器 (SSA) 在高功率射频应用中至关重要.
- 开发具有高可靠性的紧和高效的SSA是一个持续的挑战.
研究的目的:
- 设计和开发一个高效率,紧的20千瓦固态功率放大器 (SSA),运行在325MHz.
- 评估开发的SSA的性能特征和可靠性.
主要方法:
- 24个单独的1kW功率放大器 (PA) 模块的单阶段组合.
- 使用了24路威尔金森电源组合器和分离器网络.
- 执行蒙特卡洛模拟,以评估在不同输入条件下结合效率.
主要成果:
- 在20kW输出时,实现了总功率增长88.5dB,交流到射频效率为54.8%.
- 单个PA模块显示了21.7dB的增益和66.6%的转换效率.
- 射频输出中的声含量低于-40dBc; SSA 维持了20kW的输出,其中一个模块故障.
结论:
- 开发的20千瓦SSA满足了效率,功率增益和和声抑制的设计规格.
- 模块化设计提供了固有的可靠性,即使在组件故障的情况下,也确保了持续运行.
- 该SSA提供12.7千瓦/立方米的高功率密度,使其适用于空间有限的应用.
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