Nonlinear Physical Mechanism and Calculation Method of Passive Intermodulation at Metal Waveguide Connection

您当前的位置：

首页 >

文章列表页 >

Nonlinear Physical Mechanism and Calculation Method of Passive Intermodulation at Metal Waveguide Connection

更新时间：2025-07-09

- Nonlinear Physical Mechanism and Calculation Method of Passive Intermodulation at Metal Waveguide Connection
- Vol. 45, Issue 2, Pages: 82-86(2011)
- 作者机构：
  
  西安交通大学电子与信息工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN015
- Online First：10 February 2011，
  
  Published：2011
- 稿件说明：
移动端阅览
Nonlinear Physical Mechanism and Calculation Method of Passive Intermodulation at Metal Waveguide Connection[J]. 2011, 45(2): 82-86.
DOI：

Nonlinear Physical Mechanism and Calculation Method of Passive Intermodulation at Metal Waveguide Connection[J]. 2011, 45(2): 82-86. DOI：

摘要

针对大功率条件下金属波导连接的无源互调(PIM)难以预测的问题

提出了一种金属波导结的PIM非线性物理机制和计算方法.考虑到波导表面的粗糙度和薄介质层

将波导连接视为MIM(Metal-Insulator-Metal)结构并确立其粗糙表面接触模型和等效电路模型

然后依据MIM结构的导电机理将量子隧穿电流和热发射电流视作引起PIM的非线性根源

最后运用傅里叶变换计算各阶PIM功率.相比传统的幂级数方法

该方法能快速计算各阶PIM且无需进行参数拟合.以双载波条件下工作于TE

模式的铝质矩形波导为例进行仿真实验

结果表明:波导间接触压力越大

各阶PIM越小; PIM阶数越高

载波功率之比对其影响越大; 新方法预测的5、7、9阶PIM功率相对于载波功率的增长率约为2

比传统幂级数展开法估计的结果更符合实际.

Abstract

A novel method considering nonlinear conduction mechanism is proposed to calculate the passive intermodulation(PIM)at waveguide connection and to deal with the prediction difficulty of PIM under high power condition. By taking the fact into account that the surface of the waveguide is always rough and that there is usually a dielectric thin film on it

the waveguide connection is regarded as a metal-insulator-metal structure

and the rough surface contact model and the equivalent circuit model are given. Then

the quantum tunneling current and the thermionic emission current are assumed to be the main nonlinear sources of PIM across the real waveguide connection

and the PIM power levels are obtained with the aid of the Fourier Transformation. Compared with the conventional power series me

thod

the proposed method can compute any order of PIM rapidly without parameter fitting. Simulations on rectangular aluminum waveguide operating at TE

mode are performed. The results show that the PIM power have a lower level under heavier contact pressure; higher order PIM power have more dependence on the power ratio of the input power; and the growth rates for 5-

9- order PIMs power are all about 2

which is more realistic than the theoretical results from the classic power series method.

关键词

Keywords

references

张世全.微波与射频频段无源互调干扰研究[D]. 西安: 西安电子科技大学理学院,2004.

WILKERSON J R, GARD K G, SCHUCHINSKY A G, et al. Electro-thermal theory of intermodulation distortion in lossy microwave components[J]. IEEE Trans on MTT, 2008,56(12):2717-2725.

BOND C D,GUENZER C S, CAROSELLA C A. Intermodulation generation by electron tunneling through aluminum-oxide films [J].Proceedings of the IEEE, 1979, 67(12):1643-1652.

VLADIMIRESCU M, KWIATKOWSKI R, ENGEL K. Tunnel conduction consequences in high frequency microcontacts: passive intermodulation effect[C]∥Proceedings of the 50th IEEE Holm Conference on Electric Contacts and the 22nd International Conference on Electrical Contacts. Piscataway, NJ, USA: IEEE, 2004:152-159.

VICENTE C, HARTNAGEL H L. Passive intermodulation analysis between rough rectangular waveguide flanges [J]. IEEE Trans on MTT, 2005, 53(8): 2515-2525.

GREENWOOD J A, WILLIAMSON J P B. Contact of nominally flat surfaces [J]. Proceedings of the Royal Society of London: Series A Mathematical and Physical Sciences, 1966, 295(1442):300-319.

YU Ning, POLYCARPOU A A. Contact of rough surfaces with asymmetric distribution of asperity heights [J]. ASME Journal of Tribology, 2003, 124(2):367-376.

叶鸣,贺永宁,王新波,等. 基于粗糙表面模型的微波波导连接的无源互调研究[J]. 微波学报,2010,26(4):65-69.

YE Ming, He Yingning, Wang Xinbo, et al. Study of passive intermodulation of microwave waveguide connection based on rough surface model [J]. Journal of Microwaves, 2010,26(4):65-69.

KOGUT L, ETSION I. An finite element based elastic-plastic model for the contact of rough surfaces [J]. Tribology Transactions, 2003,46(3): 383-390.

VICENTE C, WOLK D, HARTNAGEL H L, et al. Experimental analysis of passive intermodulation at waveguide flange bolted connections [J]. IEEE Trans on MTT, 2007, 55(5): 1018-1028.

Summitek Instruments Inc. Investigation of passive IM level vs power [EB/OL].(2008-05-21)[2010-05-21]. http:∥www.summitekinstruments.com/passive/docs/2008/IM%20Power%20vs%20Carrier%20Power%20IEC%20Austria%205_00%20Rev%20FINAL.pdf.

金属涂敷层对圆波导传输特性的影响分析. 西安交通大学学报, 2009, 43(10):76-80.

分析表面粗糙有耗波导传输特性的频域有限差分方法. 西安交通大学学报, 2009, 43(10):85-88.

一种降低交替方向隐式时域有限差分数值色散的方法. 西安交通大学学报, 2008, 42(2):209-212.

过模高功率太赫兹表面波振荡器优化设计. 西安交通大学学报, 2008, 42(12):1531-1536.

大功率太赫兹返波管的数值模拟研究. 西安交通大学学报, 2007, 41(12):1446-1450.

波导与开口腔体瞬态特性研究. 西安交通大学学报, 2007,41(10):1179-1183.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Calculation and Verification of Passive Intermodulation Caused by Electrothermal Coupling on Microstrip Transmission Line

Passive Intermodulation of Metal Point Contact Structure Based on Electrothermal Coupling Effect

I/O Performance Modeling and Prediction Method for Large-Scale Parallel Applications Using Machine Learning

Integrated and Joint Design Optimization of Centrifugal Compressor Impeller and Casing Treatment at Multiple Working Points

Research on the Electrohydrodynamic Effects of Ionic Liquid-Modified Fuels

Related Author

万里鹏

赵小龙

曹智

贺永宁

李军 1

赵小龙 1

高凡 1

Related Institution

School of Microelectronics, Xi'an Jiaotong University

School of Electronic and Information Engineering, Xi'an Jiaotong University

Xi'an Institude of Space Radio Technology

⁰