Pan Chao, Shi Longbo, Wu Zhengrong, Jin Kean, Jiang Guodong, Sun Liepeng, Huang Guirong, Qiu Feng, Sun Duixiong
College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
Rev Sci Instrum. 2023 Dec 1;94(12). doi: 10.1063/5.0184908.
The next-generation 650 MHz solid state power amplifier designed by the Institute of Modern Physics will utilize 24 modules with an output power of 60 kW. The outputs of each of the 12 modules will be combined using a 12-in-1 rectangular cavity combiner integrated into the rack. This cavity combiner, requiring only a single stage to combine power, is characterized by a minimal power loss and a high combining efficiency. The input couplers of the combiner are adjustable to change the number of combination channels. In the event of one amplifier module failure, the corresponding port can be adjusted to decouple, transforming the combiner to an (N-1)-channel combiner with a combining efficiency decay of 0.2%. The prototype of the combiner has been fabricated and tested with a small signal. The combining efficiency is 98.5%. In this paper, we will validate the feasibility of the combiner from the design, simulation, and experiment.
由近代物理研究所设计的下一代650兆赫固态功率放大器将使用24个模块，输出功率为60千瓦。12个模块中的每个模块的输出将通过集成在机架中的12合1矩形腔合成器进行合成。这种腔合成器只需一级就能合成功率，其特点是功率损耗最小，合成效率高。合成器的输入耦合器可调节，以改变合成通道的数量。如果一个放大器模块发生故障，可以调整相应端口以去耦，将合成器转换为（N-1）通道合成器，合成效率衰减0.2%。合成器的原型已经制作完成并进行了小信号测试。合成效率为98.5%。在本文中，我们将从设计、模拟和实验方面验证合成器的可行性。
