volume | PIER Journals

Abstract

In this paper, a rigorous study of rectangular waveguide partially filled with longitudinally magnetized ferrite is presented. The propagation constant as a function of frequency is first obtained by the use of Transverse Operator Method. We show the existence of the complex modes in this type of structures with ferrite. In these problems, the interface between an air filled rectangular waveguide and E-plane ferrite slab loaded rectangular waveguide represent a discontinuity problem. The analysis is based on the Mode Matching Method and the Transverse Operator Method which are combined in such a way as to determine the scattering parameters. The proposed approach is validated by comparing the presented results with the published data and numerical ones obtained from commercial software.

1. Arndt, F., J. Bornemann, and R. Vahldieck, "Design of multisection impedance-matched dielectric-slab filled waveguide phase shifter," IEEE Transactions on Microwave Theory and Techniques, Vol. 32, No. 1, 34-38, January 1984.
doi:10.1109/TMTT.1984.1132608 Google Scholar

2. Ise, K., K. Inoue, and M. Koshiba, "Three-dimensional finite-element solution of dielectric scattering obstacles in a rectangular waveguide," IEEE Transactions on Microwave Theory and Techniques, Vol. 38, No. 9, 1352-1359, September 1990.
doi:10.1109/22.58664 Google Scholar

3. Yu, C. C. and T. H. Chu, "Analysis of dielectric-loaded waveguide," IEEE Transactions on Microwave Theory and Techniques, Vol. 38, No. 9, 1333-1338, September 1990.
doi:10.1109/22.58661 Google Scholar

4. Abdulnour, J. and L. Marchildon, "Scattering by a dielectric obstacle in a rectangular waveguide," IEEE Transactions on Microwave Theory and Techniques, Vol. 41, No. 11, 1988-1994, November 1993.
doi:10.1109/22.273426 Google Scholar

5. Seckelmann, R., "Propagation of TE modes in dielectric loaded waveguides," IEEE Transactions on Microwave Theory and Techniques, Vol. 14, No. 11, 518-527, November 1966.
doi:10.1109/TMTT.1966.1126322 Google Scholar

6. Eberhardt, N., "Propagation in the off center E-plane dielectrically loaded waveguide," IEEE Transactions on Microwave Theory and Techniques, Vol. 15, No. 5, 282-289, May 1967.
doi:10.1109/TMTT.1967.1126452 Google Scholar

7. Gardiol, F. E., "Circularly polarized electric field in rectangular waveguide," IEEE Transactions on Microwave Theory and Techniques, Vol. 22, No. 5, 563-565, May 1974.
doi:10.1109/TMTT.1974.1128283 Google Scholar

8. Uher, J., F. Arndt, and J. Bornemann, "Field theory design of ferrrite loaded waveguide nonreciprocal phase shifters with multisection ferrite or dielectric slab impedance transformers," IEEE Transactions on Microwave Theory and Techniques, Vol. 35, No. 6, 552-560, June 1987.
doi:10.1109/TMTT.1987.1133703 Google Scholar

9. Solano, M. A., A. Vegas, and A. Prieto, "Modelling multiple discontinuities in rectangular waveguide partially filled with non-reciprocal ferrite," IEEE Transactions on Microwave Theory and Techniques, Vol. 41, No. 5, 797-802, May 1993.
doi:10.1109/22.234513 Google Scholar

10. Pereda, J. A., L. A. Vielva, M. A. Solano, A. Vegas, and A. Prieto, "FDTD analysis of magnetized ferrites: Application to the calculation of dispersion characteristics of ferrite loaded waveguides," IEEE Transactions on Microwave Theory and Techniques, Vol. 43, No. 2, 350-357, February 1995.
doi:10.1109/22.348095 Google Scholar

11. Benzina, H., H. Sakli, T. Aguili, and J. Tao, "Complex mode in rectangular waveguide filled with longitudinally magnetized ferrite slab," Progress In Electromagnetics Research M, Vol. 11, 79-87, 2010.
doi:10.2528/PIERM10010101 Google Scholar

12. High Frequency Structure Simulator (HFSS), http://www.ansys.com/.

13. Green, J. J. and F. Sandy, "Microwave characterization of partially magnetized ferrites," IEEE Transactions on Microwave Theory and Techniques, Vol. 22, No. 6, 641-645, June 1974.
doi:10.1109/TMTT.1974.1128306 Google Scholar

14. Schloemann, E., "Microwave behavior of partially magnetized ferrites," Journal of Applied Physics, Vol. 1, 1204, 1970. Google Scholar

15. Tao, J. W., J. Atechian, R. Ratovondrahanta, and H. Baudrand, "Transverse operator study of a large class of multidielectric waveguides," IEE Proceedings, Vol. 137, No. 5, 311-317, Pt. H, October 1990. Google Scholar

16. Chen, R. S., D. X. Wang, L. Chang, L. Zhu, and K. Wu, "Three dimensional analysis of dielectric-loaded waveguide discontinuity by edge FEM combined with SOC technique," Microwave and Optical Technology Letters, Vol. 27, No. 6, December 20, 2000. Google Scholar

17. Lee, S. W., W. R. Jones, and J. J. Campbell, "Convergence of numerical solutions of iris-type discontinuity problems," IEEE Transactions Microwave Theory and Techniques, Vol. 19, No. 6, 528-536, June 1971.
doi:10.1109/TMTT.1971.1127569 Google Scholar

18. Mittra, R., T. Itoh, and T. S. Li, "Analytical and Numerical Studies of the relative convergence phenomenon arising in the solution of an integral equation by the Moment Method," IEEE Transactions Microwave Theory and Techniques, Vol. 20, No. 2, 96-104, February 1972.
doi:10.1109/TMTT.1972.1127691 Google Scholar

19. Shih, Y. C. and K. G. Gray, "Convergence of numerical solutions of step-type waveguide discontinuity problems by modal analysis," IEEE MTT-S Digest, Vol. 83, No. 1, 233-235, 1983. Google Scholar

Dr. Faten Chaabane

Dr. Hafedh Benzina

Dr. Lassaad El Mir

Prof. Junwu Tao