宽带相对论速调管放大器输出腔模拟设计
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- 英文论文题名：Simulation Design of Output Cavity for Broadband Relativistic Klystron Amplifier
- 论文作者：雷禄容 ; 刘振帮 ; 黄华 ; 袁欢 ; 何琥
- 英文论文作者：LEI Lu-rong ; LIU Zhen-bang ; HUANG Hua ; YUAN Huan ; HE Hu ; Institute of Applied Electronic. CAEP ; Science and Technology on High Power Microwave Laboratory
- 年：2014
- 作者机构：中国工程物理研究院应用电子学研究所高功率微波技术重点实验室;
- 论文关键词：高功率微波 ; 相对论速调管放大器 ; 宽带 ; 重叠模 ; 双间隙输出腔
- 英文论文关键词：high power microwave ; relativistic klystron amplifier ; broadband ; overlapped mode ; two-gap output cavity
- 会议召开时间：2014-07-21
- 会议录名称：2014年全国电磁兼容与防护技术学术会议论文集（上）
- 语种：中文
- 分类号：TN122;TN722
- 学会代码：WBXB
- 会议名称：2014年全国电磁兼容与防护技术学术会议
- 会议地点：中国湖南常德
- 主办单位：中国电子学会微波分会、中国工程物理研究院复杂电磁环境科学与技术重点实验室、总装备部电磁兼容及防护技术专业组、天线与微波技术重点实验室
- 学会名称：《微波学报》编辑部
- 页数：4
- 文件大小：493k
- 原文格式：D
- 会议级别：全国
摘要
为了展宽相对论速调管放大器的输出段带宽,设计了一种用于S波段、10%带宽、相对论速调管放大器输出腔结构。该结构采用重叠模双间隙腔,该腔有两个工作模式(0模和π模)。采用三维程序模拟分析发现:两个腔间的圆盘半径增大时,0模的谐频率几乎不变,π模的谐振频率升高即模式间隔增大;当间隙长度增大时,模式间隔减小;当输出耦合孔的角度在一定范围内由小变大时,模式间隔增大;输出腔半径增大时,模式间隔减小。本文通过调节以上腔体尺寸使两个工作模式的频率部分重合增加了输出腔的工作带宽。在束压850k V、束流7.6k A、基波调制深度为90%时、调制微波频率为2.85GHz时,采用三维PIC程序模拟得到2GW的输出微波功率,3d B相对带宽约10%。
With 3D full electromagnetic code, an S-band overlapped mode two-gap output cavity for broadband relativistic klystron amplifier has been designed and calculated, and there is two modes in the two-gap output cavity. It is found that the two modes will be overlapped partially by adjusting the structure of output caviy and it is beneficial to expand the bandwidth of output structure. A 2.0GW averaged power over the oscillator period is generated by simulation, with 850 k V electron beam voltage, 7.6k A current and 90% depth of the modulated current using the two-gap output cavity. The centric frequency is 2.85 GHz. The 3d B bandwidth is about 10%.
With 3D full electromagnetic code, an S-band overlapped mode two-gap output cavity for broadband relativistic klystron amplifier has been designed and calculated, and there is two modes in the two-gap output cavity. It is found that the two modes will be overlapped partially by adjusting the structure of output caviy and it is beneficial to expand the bandwidth of output structure. A 2.0GW averaged power over the oscillator period is generated by simulation, with 850 k V electron beam voltage, 7.6k A current and 90% depth of the modulated current using the two-gap output cavity. The centric frequency is 2.85 GHz. The 3d B bandwidth is about 10%.
引文
[1]丁耀根.大功率速调管的理论与计算模拟[M].北京:国防工业出版社,2008:283-334.Ding Yao gen.Theory and computer simulation of high power klystron.Beijing:National Defense Industry Press,2008:283-334.
[2]Lien E,Robinson D.Study and investigation leading to the design of broad high Power klystron amplifiers[R].AD 804956,1966.
[3]林福民,丁耀根,张志强,等.速调管双间隙腔的间隙阻抗矩阵频率特性的模拟计算方法[J].电子与信息学报,2004,26(9):1480-1488.Lin Fumin,Ding Yaogen,Zhang Zhiqing,et al.Simulation computation method for calculating the impedance matrix of double gap cavity of klystron Journal of Electronics and Information Technology,2004,26(9):1480-1486.
[4]钮得禄,钱书珍,王明尔,等.高增益,10%带宽,兆瓦级,L波段速调管放大器[J].真空电子技术,1993(2):8.Niu Delu,Qian Shuzhen,Wang Ming’er,et al.High gain,Bandwidth of 10%,MW-levels,L-band klystron amplifier.Vacuum Electrons Technology,1993(2):8.
[5]丁耀根,钮得禄,陆孝厚,等.S波段2.5MW宽频带大功率速调管的研制[J].电子科学学刊,1985,7(4):247-253.Ding Yaogen,Niu Delu,Lu Xiaohou,et al.An S-band2.5MW high power broadband klystron.Journal of Electronics,1985,7(4):247-253.
[6]Ding Yaogen,Zhu Yunshu.Studies on broadband output circuit of high power klystron[C]//Proceedings of UHF-99.1999:383.
[7]Zhao Yongxiang.An impedance measurement method for double-gap klystron cavity[J].IEEE Trans on Electron Devices,1982,29(2):316-340.
[8]王勇,张健,王颖,等.12%带宽S波段大功率速调管的研制[J].微波学报,2010,8.WANG Yong,ZHANG Jian,WANG Ying,et al.Development of the S-band High Power Klystron with Bandwidth of 12%[J].Journal of Microwaves,2010,8.
[2]Lien E,Robinson D.Study and investigation leading to the design of broad high Power klystron amplifiers[R].AD 804956,1966.
[3]林福民,丁耀根,张志强,等.速调管双间隙腔的间隙阻抗矩阵频率特性的模拟计算方法[J].电子与信息学报,2004,26(9):1480-1488.Lin Fumin,Ding Yaogen,Zhang Zhiqing,et al.Simulation computation method for calculating the impedance matrix of double gap cavity of klystron Journal of Electronics and Information Technology,2004,26(9):1480-1486.
[4]钮得禄,钱书珍,王明尔,等.高增益,10%带宽,兆瓦级,L波段速调管放大器[J].真空电子技术,1993(2):8.Niu Delu,Qian Shuzhen,Wang Ming’er,et al.High gain,Bandwidth of 10%,MW-levels,L-band klystron amplifier.Vacuum Electrons Technology,1993(2):8.
[5]丁耀根,钮得禄,陆孝厚,等.S波段2.5MW宽频带大功率速调管的研制[J].电子科学学刊,1985,7(4):247-253.Ding Yaogen,Niu Delu,Lu Xiaohou,et al.An S-band2.5MW high power broadband klystron.Journal of Electronics,1985,7(4):247-253.
[6]Ding Yaogen,Zhu Yunshu.Studies on broadband output circuit of high power klystron[C]//Proceedings of UHF-99.1999:383.
[7]Zhao Yongxiang.An impedance measurement method for double-gap klystron cavity[J].IEEE Trans on Electron Devices,1982,29(2):316-340.
[8]王勇,张健,王颖,等.12%带宽S波段大功率速调管的研制[J].微波学报,2010,8.WANG Yong,ZHANG Jian,WANG Ying,et al.Development of the S-band High Power Klystron with Bandwidth of 12%[J].Journal of Microwaves,2010,8.