A NOVEL ANALYTIC METHOD FOR THE BROAD-BAND DETERMINATION OF ELECTROMAGNETIC IMPEDANCES AND MATERIAL PARAMETERS

被引:45
作者
PELSTER, R
机构
[1] II. Physikalisches Institut der Universität zu Köln
关键词
D O I
10.1109/22.392906
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
A simple analytic technique is described that allows the determination of complex impedances from quasistatic frequencies (some Hz) up to 2 GHz with one setup and a single sweep. Samples are placed in a shielded capacitor-like measurement cell that is inserted into a transmission line. The transmission coefficient of the setup is measured for one signal direction, i.e., only two receiver channels are needed. A complete calibration is achieved with only two standards. Dielectric and, with restrictions in the frequency range, magnetic material parameters can be determined via these impedance measurements. Temperature-dependent calibration and measurement are possible and even low losses down to tan delta = 5 . 10(-4) and small inpedances Z greater than or equal to 0.05 Omega can be determined. The applicability of the method is experimentally verified over a frequency range of nearly nine decades from 5 Hz to 2 GHz.
引用
收藏
页码:1494 / 1501
页数:8
相关论文
共 15 条
[1]  
Macdonald J.R., Impedance Spectroscopy, (1987)
[2]  
Eul H.J., Schiek B., A generalized theory and new calibration procedures for network analyzer self-calibration, IEEE Trans. Microwave Theory Tech., 39, 4, pp. 724-731, (1991)
[3]  
Rost A., Messung dielektrischer Stoffeigenschaften, (1978)
[4]  
Belhadj-Tahar N.-E., (1986)
[5]  
Afsar M.N., Birch J.R., Clarke R.N., The measurement of the properties of materials, Proc. IEEE, 74, 1, pp. 183-199, (1986)
[6]  
Pelster R., (1993)
[7]  
Pelster R., (1991)
[8]  
Freitag H., Einführung in die Zweitortheorie, Teubner Studienskripten, (1984)
[9]  
Getsinger W.J., The packaged and mounted diode as a microwave circuit, IEEE Trans. Microwave Theory Tech., MTT-14, pp. 58-69, (1966)
[10]  
Getsinger W.J., Coupled rectangular bars between parallel plates, IRE Trans. MTT, 10, pp. 65-72, (1962)