基于介电非线性机制的微带电路无源互调效应研究

doi:10.3969/j.issn.0372-2112.2020.12.001

电子学报 ›› 2020, Vol. 48 ›› Issue (12): 2289-2296.DOI: 10.3969/j.issn.0372-2112.2020.12.001

• 学术论文 • 下一篇

基于介电非线性机制的微带电路无源互调效应研究

赵小龙, 叶鸣, 张松昌, 曹智, 张可越, 张安学, 贺永宁

西安交通大学电子与信息工程学院, 陕西西安 710049

收稿日期:2019-10-08 修回日期:2020-05-07 出版日期:2020-12-25
- 通讯作者:
- 赵小龙, 贺永宁
- 作者简介:
- 叶鸣男,1985年生于湖南澧县,副教授,博士生导师,2008年于重庆邮电大学获得学士学位,2014年于西安交通大学获得博士学位,主要从事微波电路设计及其测量传感应用和可靠性、二次电子发射效应及其应用等方面的研究.E-mail:yeming057@xjtu.edu.cn;张松昌 男,1983年出生于甘肃省张掖市,2011年获得西安交通大学硕士学位,主要从事射频电接触和微波无源器件互调干扰方面的研究工作.E-mail:zsoncg@126.com;曹智男,1993年生于陕西延安,2016年于西北农林科技大学获得学士学位.现为西安交通大学电子与信息工程学院博士研究生,主要研究方向为微波无源器件的无源互调问题及互调测试.E-mail:chzsky@163.com;张可越 女,1994年6月出生于陕西渭南,现为西安交通大学微电子学院在读博士研究生,主要从事微波器件和电路非线性效应的研究工作.E-mail:zhangkeyuejav@163.com;张安学 男,1972年8月生于河南安阳,教授,博士生导师.1996年获河南师范大学学士学位,1999年和2003年分别获西安交通大学硕士和博士学位,主要从事天线与电波传播、射频与微波电路设计、阵列信号处理、电磁超材料等方面的研究.E-mail:anxuezhang@xjtu.edu.cn
- 基金资助:
- 江苏省重点研发计划-产业前瞻与共性关键技术 (No.BE2016159）

Passive Intermodulation in Microstrip Circuits Due to Dielectric Nonlinearity

ZHAO Xiao-long, YE Ming, ZHANG Song-chang, CAO Zhi, ZHANG Ke-yue, ZHANG An-xue, HE Yong-ning

School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China

Received:2019-10-08 Revised:2020-05-07 Online:2020-12-25 Published:2020-12-25
- Corresponding author:
- ZHAO Xiao-long, HE Yong-ning

摘要/Abstract

摘要： 微带电路无源互调产生机制尚无定论并且缺乏可靠的理论预测方法，本文基于等效受控源模型，建立了基于介电非线性机制的微带线无源互调的解析计算模型，同时，通过对比测试聚四氟乙烯玻纤布介质微带线和空气介质微带线的三阶互调规律验证了介质非线性是微带电路无源互调的一种主要非线性来源，并提取了非线性参数.实验结果显示聚四氟乙烯玻纤布介质微带线比空气介质微带线的传输互调高了约20dB，反射互调高了约15dB，表明介质非线性是聚四氟乙烯玻纤布介质微带线互调的主要来源.同时，根据本文建立的微带线互调计算解析模型，提取聚四氟乙烯玻纤布介质基板的三阶非线性相对介电常数.本文研究方法可以进一步用于其它微带电路无源互调规律计算研究.

关键词: 介电非线性, 无源互调, 微带线, 覆铜板, 非线性介电常数

Abstract: To reveal the physical mechanism and establish the prediction model of the passive intermodulation (PIM) in the microstrip circuits, we deduce a closed form PIM model based on the dielectric nonlinearity through the dependent-source equivalence, and demonstrate that the dielectric nonlinearity is one of the major causes of PIM in microstrip circuits comparing the PIM phenomenon in PolyTetraFluoroEthylene (PTFE) fiberglass dielectric and air dielectric microstip lines. The nonlinear dielectric constant was derived as well. The experiments show that the PIM levels of the PTFE fiberglass dielectric microstirp line are about 20dB and 15dB larger than that of the air dielectric microstirp line for forward PIM and reverse PIM, respectively, which indicates that the dielectric nonlinearity is the main cause of PIM in the PTFE fiberglass based microstrip line. The third order nonlinear relative dielectric constant is deduced by the analytical PIM model. The model deduced in this paper can also be extended to study the PIM phenomenon in other microstrip circuits.

Key words: dielectric nonlinearity, passive intermodulation, microstrip line, copper clad laminate, nonlinear dielectric constant

中图分类号:

TN914

赵小龙, 叶鸣, 张松昌, 曹智, 张可越, 张安学, 贺永宁. 基于介电非线性机制的微带电路无源互调效应研究[J]. 电子学报, 2020, 48(12): 2289-2296.

ZHAO Xiao-long, YE Ming, ZHANG Song-chang, CAO Zhi, ZHANG Ke-yue, ZHANG An-xue, HE Yong-ning. Passive Intermodulation in Microstrip Circuits Due to Dielectric Nonlinearity[J]. Acta Electronica Sinica, 2020, 48(12): 2289-2296.

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基于介电非线性机制的微带电路无源互调效应研究

Passive Intermodulation in Microstrip Circuits Due to Dielectric Nonlinearity

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