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This study presents an analytical method for extracting the constitutive parameters of an isotropic two-dimensional magneto-dielectric thin cylinder (small radius compared with the wavelength). The method is based on the scattered far field information to a plane wave illumination. Three variations of the method are presented. First, the complex monostatic scattered fields of two orthogonal polarisations are used to extract the complex constitutive parameters (permittivity and permeability) of a lossy cylinder. Second, the complex bistatic and monostatic scattered fields for a single polarisation are used to extract the complex permittivity and permeability. Third, the absolute value of the monostatic radar cross section for two orthogonal polarisations is used to extract the complex permittivity or permeability. An approximation for a small argument is used to obtain a simple polynomial expression for the scattered field to extract the constitutive parameters. Numerical examples to validate the proposed extraction methods are shown and the results are satisfactory.
References
-
-
1)
-
A.H. Boughriet ,
C. Legrand ,
A. Chapoton
.
A noniterative stable transmission/reflection method for low-loss material complex permittivity determination.
IEEE Trans. Microw. Theory Tech.
,
1 ,
52 -
57
-
2)
-
12. Lipschutz, S., Murray, S., Liu, J.: ‘Schaum's Outline of Mathematical Handbook of Formulas and Tables’, .
-
3)
-
3. Huang, Y.: ‘Design, calibration and data interpretation for a one port large coaxial dielectric measurement cell’, Meas. Sci. Technol., 2001, 12, (1), pp. 111–115 (doi: 10.1088/0957-0233/12/1/315).
-
4)
-
2. Stuchly, M., Athey, T., Taylor, G.: ‘Measurements of radio frequency permittivity of biological tissues with an open - ended coaxial line: Part 2 experimental results’, IEEE Trans. Microw. Theory Tech., 1982, 30, (2), pp. 192–198 (doi: 10.1109/TMTT.1982.1131046).
-
5)
-
8. Kent, G.: ‘Dielectric resonances for measuring dielectric properties’, Microw. J., 1988, 31, (10), pp. 90–114.
-
6)
-
D.K. Ghodgaonkar ,
V.V. Varadan ,
V.K. Varadan
.
Free-space measurement of complex permittivity and complex permeability of magnetic materials at microwave frequencies.
IEEE Trans. Instrum. Meas.
,
2 ,
387 -
394
-
7)
-
9. Lynch, A.: ‘Measurement of dielectric properties in an open resonator’. Proc. IEE Conf. on Dielectric Materials Measurements and Applications, Institute of Electrical Engineers, London, 1979, vol. 177, pp. 373–376.
-
8)
-
1. Chen, L., Ong, C., Neo, C., Varadan, V.K., Varadan, V.K.: ‘Microwave electronics: measurement and materials characterization’ (Wiley, 2004).
-
9)
-
13. Balanis, C.A.: ‘Advanced engineering electromagnetics’ (Wiley, New York, 1989), .
-
10)
-
10. Kobayashi, Y., Katoh, M.: ‘Microwave measurement of dielectric properties of low loss materials by the dielectric rod resonator method’, IEEE Trans. Microw. Theory Tech., 1985, 33, (7), pp. 586–592 (doi: 10.1109/TMTT.1985.1133033).
-
11)
-
7. Damaskos, N.: ‘Measuring dielectric constants of low loss materials using a broadband cavity technique’, Microw. J., 1995, 38, (9), pp. 140–149.
-
12)
-
H.E. Bussey ,
J.H. Richmond
.
Scattering by a lossy dielectric circular cylindrical multilayer numerical values.
IEEE Trans. Antennas Propag.
,
5 ,
723 -
725
-
13)
-
5. Esterban, H., Catala-Civera, J., Cogollos, S., Boria, V.: ‘Characterization of complex permittivity properties of materials in rectangular waveguides using a hybrid iterative method’, IEEE Microw. Guid. Wave Lett., 1997, 10, (5), pp. 186–188 (doi: 10.1109/75.850372).
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