一种直角转弯圆波导模式转换器设计

梁源; 刘庆想; 张健穹; 李相强

doi:10.11884/HPLPB201830.180074

一种直角转弯圆波导模式转换器设计

doi: 10.11884/HPLPB201830.180074

西南交通大学物理科学与技术学院, 成都 610031

基金项目:

中央高校基本科研业务费专项基金项目 2682014ZT20

详细信息

作者简介:
梁源(1990－), 男, 博士，从事高功率微波天线技术研究；liang_yuan126@126.com

通讯作者:
张健穹(1983－), 男, 教授，从事高功率微波技术研究；qilinxing@163.com

中图分类号: TN814
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- 被引次数: 0
出版历程
- 收稿日期: 2018-03-16
- 修回日期: 2018-04-26
- 刊出日期: 2018-08-15

Design of mode converter using orthogonal circular waveguide

School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China

摘要

摘要: 设计了一种尺寸紧凑并具有高功率容量的圆波导TE₁₁-TM₀₁模式转换器，结构呈直角转弯形状。该转换器利用传输TE₁₁模式的圆波导与其E面分支耦合进行模式转换，并在TM₀₁输出端口的反向传输短路面加入调配螺钉来拓宽频带。设计结果表明，转换器在工作频率12.7 GHz处的转换效率为99.6%，大于90%的带宽约20%，填充SF₆绝缘气体工作时可获得12 MW的功率容量。
- 高功率微波 /
- 模式转换 /
- 紧凑 /
- 圆波导
Abstract: This paper presents a compact, high-power mode converter using, which consists of two orthogonal circular waveguides. The mode conversion is based on the coupling relationship of TE₁₁ mode and the TM₀₁ mode transmitting at E-plane branch of the circular waveguide. In addition, wider bandwidth is achieved by placing a tuning screw at the short end. The results show that the conversion efficiency at 12.7 GHz is 99.6% and the bandwidth greater than 90% is ranging from 11 GHz to 14 GHz.
- high power microwave /
- mode converter /
- compactness /
- circular waveguide

HTML全文

图 1 转换器三维透视图

Figure 1. 3-D diagram of the proposed mode converter

下载: 全尺寸图片幻灯片

图 2 转换器剖面图

Figure 2. Profile of the mode converter

下载: 全尺寸图片幻灯片

图 3 波导截面上的矢量场

Figure 3. Vector fields in the cross sections

下载: 全尺寸图片幻灯片

图 4 转换器内的电场强度分布

Figure 4. E-field distribution inside the mode converter

下载: 全尺寸图片幻灯片

图 5 TM₀₁模式的转换效率

Figure 5. Conversion efficiency of TM₀₁ mode

下载: 全尺寸图片幻灯片

图 6 螺钉直径对转换效率的影响

Figure 6. Curves for conversion efficiency versus different diameters of the screw

下载: 全尺寸图片幻灯片

图 7 螺钉高度对转换效率的影响

Figure 7. Curves for conversion efficiency versus different heights of the screw

下载: 全尺寸图片幻灯片

图 8 转换器驻波比测量

Figure 8. Measurement of VSWR

下载: 全尺寸图片幻灯片

图 9 驻波比测量结果与计算值对比

Figure 9. Simulated and measured VSWR

下载: 全尺寸图片幻灯片

表 1 最大场强值在同一频率下的对比

Table 1. Comparison of the maximum E-fields at the same frequency

	maximum E-field/(V·m^-1)	frequency/GHz
this paper	322	1.75
this paper	324	1.79
Ref.[10]	750	1.75
Ref.[11]	580	1.79

下载: 导出CSV

参考文献(11)

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