论文信息 - On the measurement of the complex permittivity of materials by an open-ended coaxial probe

On the measurement of the complex permittivity of materials by an open-ended coaxial probe

A number of papers have appeared on the characterization of materials using a coaxial probe. In most cases, approximate admittance models have been used for this purpose. The present work compares two rigorous mathematical models for the aperture admittance. One of these relations is based on the variational principle while the other utilizes the method of moments. Muller's method is then used to determine the complex permittivity of materials. The two procedures have been tested in the frequency range of 1-18 GHz. >

Devendra K. Misra | D. Misra

[1] David C. Chang,et al. Theory of the Annular Slot Antenna Based on Duality , 1971 .

[2] H. Zheng,et al. Permittivity measurements using a short open-ended coaxial line probe , 1991, IEEE Microwave and Guided Wave Letters.

[3] William H. Press,et al. Numerical recipes , 1990 .

[4] S. S. Stuchly,et al. A new aperture admittance model for open-ended waveguides , 1992 .

[5] A. A. Maryott,et al. Circular of the Bureau of Standards no. 589:: tables of dielectric dispersion data for pure liquids and dilute solutions , 1958 .

[6] A. Hippel,et al. Dielectric Materials and Applications , 1995 .

[7] Kenneth R. Foster,et al. Noninvasive electrical characterization of materials at microwave frequencies using an open-ended coaxial line: test of an improved calibration technique , 1990 .