volume | PIER Journals

Abstract

This article presents a new method for studying the near-field electromagnetic interaction between a dielectric filled open ended circular waveguide (OECW) and a layered dielectric structure. The proposed model is based on plane wave spectrum theory using a novel and computationally efficient two step integration method. The first integral, involving multiple singularities in the integration path, is efficiently solved using a deformed elliptical integration path which encircles the singularities of the integral. The infinite domain tail integral involving the slowly converging integrand is further solved using an efficient trigonometric transformation. The proposed OECW based method is capable of determining the unknown material properties of any layered dielectric medium, and hence finds application in nondestructive evaluation of materials.

1. Kumar, S. and D. G. Mahto, "Recent trends in industrial and other engineering applications of non destructive testing: A review," International Journal of Scientific and Engineering Research, Vol. 4, No. 9, 183-195, 2013. Google Scholar

2. Augustine, R., D. G. Kurup, S. Redzwan, P. Mathur, S. Raman, D. Lee, and K. Kim, "Microwave reflectivity analysis of bone mineral density using ultra wide band antenna," Microwave Optical Technology Letters, Vol. 59, 21-26, 2017.
doi:10.1002/mop.30210 Google Scholar

3. Hyde, M. W. and M. J. Havrilla, "clamped dual-ridged waveguide measurement system for the broadband, nondestructive characterization of sheet materials," Radio Science, Vol. 48, No. 5, 628-637, 2013.
doi:10.1002/rds.20044 Google Scholar

4. Ramzi, M. R., M. Abou-Khousa, and I. Prayudi, "Near-field Microwave Imaging Using Open-ended Circular Waveguide Probes," IEEE Sensors Journal, Vol. 17, No. 8, 2359-2366, 2017.
doi:10.1109/JSEN.2017.2669301 Google Scholar

5. Besson, J. C., S. Mamane, and F. E. Gardiol, "TE11 reflection of open-ended circular waveguides application to nondestructive measurement of materials," 10th European Microwave Conference, 317-321, Warszawa, Poland, 1980. Google Scholar

6. Bailey, M. C. and C. Swift, "Input admittance of a circular waveguide aperture covered by a dielectric slab," IEEE Transactions on Antennas and Propagation, Vol. 16, No. 4, 386-391, 1968.
doi:10.1109/TAP.1968.1139207 Google Scholar

7. Rudduck, R. C. and C. L. Yu, "Circular waveguide method for measuring reflection properties of absorber panels," IEEE Transactions on Antennas and Propagation, Vol. 22, No. 2, 251-256, 1974.
doi:10.1109/TAP.1974.1140782 Google Scholar

8. Yuan, M. and T. K. Sarkar, "Computation of the Sommerfeld integral tails using the matrix pencil method," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 4, 1358-1362, Apr. 2006.
doi:10.1109/TAP.2006.872656 Google Scholar

9. Gander, W. and W. Gautschi, "Adaptive quadrature-revisited," BIT Numerical Mathematics, Vol. 40, No. 1, 84-101, 2000.
doi:10.1023/A:1022318402393 Google Scholar

10. Ansys HFSS (High Frequency Simulation Software) V10 User Guide..
doi:10.1023/A:1022318402393 Google Scholar

11. Gabriel, C., S. Gabriel, and E. Corthout, "The dielectric properties of biological tissues: I. Literature survey," Physics in Medicine and Biology, Vol. 41, 2231-2249, 1996.
doi:10.1088/0031-9155/41/11/001 Google Scholar

12. Mathur, P., D. G. Kurup, and R. Augustine, "Design of open ended circular waveguide for non-invasive monitoring of cranial healing in pediatric craniosynostosis," First IEEE MTT-S International Microwave Bio Conference (IMBIOC), 1-4, Gothenburg, May 2017. Google Scholar

Dr. Parul Mathur

Dr. Dhanesh G. Kurup

Dr. Mauricio D. Perez

Dr. Syaiful Redzwan Mohd Shah

Dr. Jacob Velander

Dr. Robin Augustine