Design and experiment of microwave pulse compressor with adjustable coupling coefficient
-
摘要: 针对有源能量倍增器法(SLED)脉冲压缩实验中对储存能量阶段和释放能量阶段耦合度调节的需求，利用支臂短路波导H-T的调配功能，设计了一种耦合度可调节的SLED脉冲压缩装置。基于散射矩阵理论，分析了支臂短路波导H-T对SLED脉冲压缩装置耦合度的调节能力。利用大功率波导环形器代替3 dB耦合器，进行了基于单储能腔的无源SLED脉冲压缩实验，实验结果表明，支臂短路波导H-T对耦合度的调节能力与理论分析相吻合。Abstract: Pulse compression is an effective means for increasing the output peak power of microwave sources, the coupling coefficient characterizes the coupling strength between the input waveguide and the storage cavity. In order to change the coupling coefficient in different stages of active SLED compression experiment, a pulse compressor system with adjustable coupling coefficient was designed by the adapter function of H-T waveguide junction and shorting piston. The adjustment capability of the waveguide H-T was analyzed based on the scattering matrix theory. The passive SLED pulse compression experiment was carried out by single storage cavity when the 3dB coupler was replaced by a high power waveguide circulator. The experiment results show that the adjustment capability of the waveguide junction agrees with that of the theoretical analysis.
-
Key words:
- pulse compression /
- coupling coefficient /
- H-T waveguide junction /
- scattering matrix
-
图 2 耦合度可调节的SLED脉冲压缩系统示意图
Figure 2. Diagram of the SLED pulse compressor with adjustable coupling coefficient
图 5 S波段圆柱储能腔及输入波导
Figure 5. The cylindrical storage cavity and input waveguide at S-band
图 6 单储能腔SLED脉冲压缩实验系统组成示意图
Figure 6. Pulse compression experiment system with single cavity
-
[1] Tantawi S G, Nantista C, Kroll N, et al. Multimoded RF delay line distribution system for the next linear collider[J]. Physics Review Special Topics—Accelerators and Beams, 2002, 5(1): 419-426. [2] 宁辉, 方进勇, 李平, 等. 高功率微波脉冲压缩技术实验研究[J]. 强激光与粒子束, 2001, 13(4): 471-474. http://www.hplpb.com.cn/article/id/1705Ning Hui, Fang Jinyong, Li Ping, et al. Experimental research on HPM pulse compression, High Power Laser and Particle Beams, 2001, 13(4): 471-474 http://www.hplpb.com.cn/article/id/1705 [3] Petelin M I, Hirshfield J L, Kuzikov S V, et al. High power microwave pulse compressors: passive, active and combined[C]//Proc of IEEE International Conference on Vacuum Electronics. 2000, 4031: 224-231. [4] Guo Jiquan, Tantawi S G. Active RF pulse compression using an electrically controlled semiconductor switch[J]. IEEE Particle Accelerator Conference, 2007, 877(22): 2433-2435. [5] Vikharev A L, Ivanov O A, Gorbachev A M, et al. X-band active-passive RF pulse compressor with plasma switches[J]. Physics Review Special Topics—Accelerators and Beams, 2011, 14(12): 508-605. [6] Tantawi S G, Ruth R D, Vlieks A E, et al. Active radio frequency pulse compression using switched resonant delay lines[J]. IEEE Transactions on Microwave Theory and Techniques, 1997, 45(8): 1486-1492. doi: 10.1109/22.618460 [7] 梁昌洪, 谢拥军, 官伯然. 简明微波[M]. 北京: 高等教育出版社, 2006: 290-293.Liang Changhong, Xie Yongjun, Guan Boran. Concise microwave. Beijing: Higher Education Press, 2006: 290-293 [8] Tantawi S G, Petelin M I. The design and analysis of multi-megawatt distributed single pole double throw (SPDT) microwave switches[J]. IEEE MTT-S International Microwave Symposium Digest, 1999, 472(1): 296-303. -
下载:
点击查看大图
图(9)
计量
- 文章访问数: 1559
- HTML全文浏览量: 386
- PDF下载量: 156
- 被引次数: 0
