MEASURING THE PERMITTIVITY OF DIELECTRIC MATERIALS USING STDR APPROACH

This paper presents a new approach for measuring dielectric properties of materials. The proposed approach is based on applying the synthetic time domain reflectometry to a dielectric filled waveguide. The compromising measurement results show that this algorithm can be successfully applied for measuring other parameters of the materials. Also, the approach has been successfully applied to detect the discontinuities of as a multi-section microstrip line. This approach is very useful in measuring the electromagnetic parameters of the different liquids, gels, and solid materials.

[1]  C. Chiu,et al.  Permittivity Distribution Reconstruction of Dielectric Objects by a Cascaded Method , 2007 .

[2]  John G. Webster,et al.  The Measurement, Instrumentation and Sensors Handbook , 1998 .

[3]  R. Tkadlec.  S-Parameter Measurements in the Time Domain , 2004 .

[4]  Edward J. Rothwell,et al.  Electromagnetic Material Characterization using a Partially-Filled Rectangular Waveguide , 2005 .

[5]  E. Miller.  Time-domain measurements in electromagnetics , 1986 .

[6]  W. Dou,et al.  A New Approach for Measuring Permittivity of Dielectric Materials , 2005 .

[7]  K. T. Mathew,et al.  LOCALIZATION OF THE INVESTIGATION DOMAIN IN INVERSE PROFILING OF BURIED 2-D DIELECTRIC PIPELINES WITH CIRCULAR CROSS SECTION USING ELECTROMAGNETIC SCATTERED DATA , 2006 .

[8]  Vinu Thomas,et al.  DIELECTRIC STUDIES OF CORN SYRUP FOR APPLICATIONS IN MICROWAVE BREAST IMAGING , 2006 .

[9]  V. Varadan,et al.  Free-space measurement of complex permittivity and complex permeability of magnetic materials at microwave frequencies , 1990 .

[10]  Ghanshyam Singh,et al.  MEASUREMENT OF DIELECTRIC CONSTANT AND LOSS FACTOR OF THE DIELECTRIC MATERIAL AT MICROWAVE FREQUENCIES , 2007 .

[11]  K. T. Mathew,et al.  Localization of the Investigation Domain in Electromagnetic Imaging of Buried 2-D Dielectric Pipelines with Circular Cross Section , 2006 .

[12]  James A. Strickland.  Time-domain reflectometry measurements , 1970 .

[13]  M. Hussain.  Mathematical Model for The Electromagnetic Conductivity of Lossy Materials , 2005 .

[14]  B. Milovanovic,et al.  A simple method for permittivity measurement using microwave resonant cavity , 1998, 12th International Conference on Microwaves and Radar. MIKON-98. Conference Proceedings (IEEE Cat. No.98EX195).