非匹配负载对宽带脉冲产生器谐振特性的影响

徐刚; 孟凡宝; 廖勇; 谢平; 唐传祥

强激光与粒子束, 2011, 23 (3): 707, 网络出版: 2011-04-01

非匹配负载对宽带脉冲产生器谐振特性的影响

Influence of unmatched load on resonant characters of mesoband pulse oscillator

论文大纲

徐刚 ^1,2,*孟凡宝 ²廖勇 ²谢平 ²唐传祥 ¹

作者单位

¹ 清华大学工程物理系，北京 100084

² 中国工程物理研究院应用电子学研究所，四川绵阳 621900

摘要

宽带脉冲产生器的谐振特性决定了产生电磁脉冲的频谱，分析了带耦合器的同轴1/4波长谐振器在负载为非完全匹配天线时，天线反射对谐振特性的影响。通过建立级联二端口微波网络分析模型，将非匹配负载的反射系数计入等效耦合器反射系数中，得到了输出脉冲及辐射场频谱与负载反射系数的关系式。数值模拟了包括谐振器、耦合器和天线在内的整个宽带脉冲辐射系统，得到的辐射场频谱与理论预期相符。由于负载反射的影响，在中心频率两侧产生了两个副峰，在高功率实验中也观察到了该现象。

Abstract

The influence of unmatched antenna load on resonance characters of quarter wavelength coaxial oscillator, which determines the output pulse spectrum, was analyzed. Based on cascading dual-port microwave network model, the relationship between load reflectance and the spectrum of output pulse was derived by involving the reflectance of unmatched load into thequivalence coupler reflectance. Numerical simulation of the generator, which contains oscillator, coupler and antenna, was performed, showing consistent results with theoretical predictions. As predicted by theory, the spectrum of the radiation pulse creates two secondary peaks around the major peak, which was also observed in the high power experiment performed.

参考文献

[1] Prather W D, Baum C E, Torres R J, et al. Survey of worldwide high-power wideband capabilities［J］.IEEE Trans on Electromagnetic Compatibility,2004,46(3):335-344.

[2] Tyo J S, Skipper M C, Abdalla M D, et al. Performance limitations of transmission line oscillators for high power mesoband sources［C］//Proc of 15th IEEE Pulsed Power Conf.2007: 269.

[3] Stavro F V, Rachidi F, Pena N, et al. A design of a mesoband high power electromagnetic radiator using a switched oscillator and a corona current generator［C］//Proc of URSI General Assembly.2008：E01.

[4] Armanious M, Tyo J S, Skipper M C, et al. Interaction between geometric parameters and output waveforms in high-power quarter-wave oscillators［J］.IEEE Trans on Plasma Sci,2010,38(5): 1124-1131.

[5] Giri D V, Tesche F M, Abdalla M D, et al. Switched oscillators and their integration into helical antennas［J］.IEEE Trans on Plasma Sci,2010,38(6):1411-1426.

[6] Baum C E. The Dispatcher: a new mesoband high power radiator［C］//Proc of URSI General Assembly.2002:E03.

[7] Giri D V, Tesche F M, Skipper M C, et al. Switched oscillator into a helical antenna at 500 MHz［C］//Proc of European Electromagnetics Conference.2008:E12.

[8] Hong K D, Braidwood S W. Resonant antenna-source system for generation of high-power wideband pulses［J］.IEEE Trans on Plasma Sci,2002,30(5):1705-1711.

[9] Belt D, Mankowski J, Walter J, et al. Analysis of mesoband single element pulsed ring-down antennas for implementation in phased array systems［C］//Proc of IEEE Int Power Modulators and High Voltage Conf.2008: 152-155.

[10] Xu Gang, Liao Yong, Xie Ping, et al. Analysis and simulation of a frequency tunable high power mesoband electromagnetic pulse generator［C］//Proc of 13th Int Conf on Megagauss Magnetic Field Generation and Related Topics.2010.

[11] Ma Jifu, Mittra R, Huang Nengtien. Analysis of multiple FSS screens of unequal periodicity using an efficient cascading technique［J］.IEEE Trans on Antennas and Propagation,2005,53(4):1401-1414.

[12] 应嘉年, 顾茂章, 张克潜. 微波与光导波技术［M］. 北京：国防工业出版社, 1994.(Ying Jianian, Gu Maozhang, Zhang Keqian. Microwave and light guide wave technology. Beijing: National Defense Industry Press, 1994)

[13] 徐刚，廖勇，孟凡宝，等. 用于宽带高功率微波辐射的双层贴片天线特性［J］. 强激光与粒子束，2009，21(12)：1839-1844.(Xu Gang, Liao Yong, Meng Fanbao, et al. Characteristics of two-layer patch microstrip antenna for high power wideband microwave radiation.High Power Laser and Particle Beams,2009,21(12):1839-1844)

徐刚, 孟凡宝, 廖勇, 谢平, 唐传祥. 非匹配负载对宽带脉冲产生器谐振特性的影响[J]. 强激光与粒子束, 2011, 23(3): 707. Xu Gang, Meng Fanbao, Liao Yong, Xie Ping, Tang Chuanxiang. Influence of unmatched load on resonant characters of mesoband pulse oscillator[J]. High Power Laser and Particle Beams, 2011, 23(3): 707.

非匹配负载对宽带脉冲产生器谐振特性的影响

关于本站 Cookie 的使用提示

全站搜索

非匹配负载对宽带脉冲产生器谐振特性的影响

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索