A Stepwise Nicolson-Ross-Weir-Based Material Parameter Extraction Method

被引:198
作者
Luukkonen, Olli [1 ]
Maslovski, Stanislav I. [2 ]
Tretyakov, Sergei A. [3 ]
机构
[1] Nokia Corp FI, NRC Helsinki, Helsinki 00045, Finland
[2] Univ Coimbra, Inst Telecomunicacoes, Dept Elect Engn, P-3030 Coimbra, Portugal
[3] Aalto Univ, Dept Radio Sci & Engn SMARAD CoE, Aalto 00076, Finland
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2011年 / 10卷
基金
芬兰科学院;
关键词
Anti-resonance; automated extraction method; electromagnetic material parameters; permeability; permittivity; COMPLEX DIELECTRIC-CONSTANT; MICROWAVE-FREQUENCIES; AUTOMATIC MEASUREMENT; PERMEABILITY; PERMITTIVITY; REFLECTION;
D O I
10.1109/LAWP.2011.2175897
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Approaches of automated evaluation of electromagnetic material parameters have received a lot of attention in the literature. Among others, one method is to retrieve the material parameters from the reflection and transmission measurements of the sample material. Compared to other methods, this is a rather wideband method, but suffers from an intrinsic limitation related to the electrical thickness of the measured material. In this letter, we propose a novel way to overcome this limitation. Although being based on the classical Nicolson-Ross-Weir (NRW) technique, the proposed extraction technique does not involve any branch seeking and is therefore capable of extracting material parameters from samples thicker than lambda/2, a measure that would otherwise cause problems in the NRW extraction technique. The proposed derivative of the NRW extraction technique is then used to study the effect of thermal noise on the extracted material parameters.
引用
收藏
页码:1295 / 1298
页数:4
相关论文
共 9 条