volume | PIER Journals

Abstract

The field conditions inside a vibrating intrinsic reverberation chamber (VIRC) are examined. By the use of the Finite Difference Time Domain (FDTD) method,the field strength in the VIRC is calculated,and an investigation of the field uniformity and the field distribution is performed. The modes inside the cavity are excited by applying an appropriately modulated waveform on a dipoles gap. The use of this kind of waveform enables the study of the field conditions over a wide frequency range. On the contrary,an implementation of the field excitation with an unmodulated carrier would require a simulation of the FDTD method at each frequency of interest. Thus,a considerable reduction in the simulation time is achieved. The results presented,describing the field behavior inside the enclosure,agree with theory to a high degree.

1. Draft IEC 61000-4-21, 2001, 2001, 61000-4, Electromagnetic Compatibility (EMC) Part 4: Testing and Measurement Techniques.

2. Hill, D. A., "Electronic mode stirring for reverberation chambers," IEEE Trans.Ele ctromagn.Comat., Vol. 36, No. 4, 294-299, 1994.
doi:10.1109/15.328858 Google Scholar

3. Petirsch, M. and A. J. Schwab, "In vestigation of the field uniformity of a mode-stirred chamber using diffusors based on acoustic theory," IEEE Trans.Ele ctromagn.Compat., Vol. 41, 446-451, 1999. Google Scholar

4. Perini, J. and L. S. Cohen, "An alternative way to stir the fields in a mode stirred chamber," IEEE EMC Symposium, 633-637, 2000. Google Scholar

5. Godfrey, E. A., "Effects of corrugated walls on the field uniformity of reverberation chambers at low frequencies," IEEE EMC Symposium, 23-28, 1999. Google Scholar

6. Huang, Y. and D. J. Edwards, "An investigation of the electromagnetic field inside a moving wall mode-stirred chamber," IEE Conference on EMC, 115-119, 1992. Google Scholar

7. Lefering, F., "High field strength in a large volume: the intrinsic reverberation chamber," IEEE EMC Symposium, 24-27, 1998. Google Scholar

8. Leferink, F., J. C. Boudenot, and W. Etten, "Exp erimental results obtained in the vibrating intrinsic reverberation chamber," IEEE EMC Symposium, 639-644, 2000. Google Scholar

9. Leferink, F. and W. Etten, "Generating an EMC test field using a vibrating intrinsic reverberation chamber," EMC Society Newsletter, 2001. Google Scholar

10. Taflove, A., Computational Electrodynamics, Artech House.
doi:10.1109/TAP.1966.1138693

11. Yee, K., "Numerical solution of initial boundary value problems involving maxwells equations in isotropic media," IEEE Trans. Ant. Prop., Vol. 14, No. 3, 302-307, 1966. Google Scholar

12. Bai, L., L. Wang, B. Wang, and J. Song, "Rev erberation chamber modeling using FDTD," IEEE EMC Symposium, 7-11, 1999. Google Scholar

13. Harima, K., "FDTD analysis of electromagnetic fields in a reverberation chamber," IEICE Trans.Commun., Vol. E81-B, 81, 1998. Google Scholar

14. Chung, S., J. Rhee, H. Rhee, and K. Lee, "Field uniformity characteristics of an asymmetric structure reverberation chamber by FDTD method," IEEE EMC Symposium, 2001. Google Scholar

15. Zhang, D., E. Li, and W. Yuang, "Study of independent sampling points in a reverberation chamber with two stirrers," IEEE EMC Symposium, 2001. Google Scholar

16. Rosengren, K., P . Kildal, C. Carlsson, and J. Carlsson, "Characterization of antennas for mobile and wireless terminals by using reverberation chambers: Improved accuracy by platform stirring," IEEE AP-S Symposium, 2001. Google Scholar

17. Hoijer, M., A. Andersson., O. Lunden, and M. Backstrom, "Numerical simulations as a tool for optimizing the geometrical design of reverberation chambers," IEEE EMC Symposium, 2000.
doi:10.1080/027263402753427646 Google Scholar

18. Kouveliotis, N. K., P . T. Trakadas, A. I. Stefanogiannis, and C. N. Capsalis, "Field prediction describing scattering by a one dimensional smooth random rough surface," Electromagnetics, Vol. 22, No. 1, 27-35, 2002. Google Scholar

19. Boonzaaier, J. J. and C. W. I. Pistorius, "Thin wire dipoles A finite-difference time-domain approach," Electronics Letters, Vol. 26, No. 22, 1891-1892, 1990. Google Scholar

20. Haykin, S., Communications Systems, Wiley, 1983.

21. Svetanoff, D., J. Weibler, R. Cooney, M. Squire, S. Zielinski, M. Hatfield, and M. Slocum, "Dev elopment of high performance tuners for mode-stirring and mode-tuning applications," IEEE EMC Symposium, 29-34, 1999.
doi:10.1109/15.99120 Google Scholar

22. Kostas, J. G. and B. Boverie, "Statistical model for a mode-stirred chamber," IEEE Trans.Ele ctromagn.Comp at., Vol. 33, 366-370, 1991.
doi:10.1109/15.709418 Google Scholar

23. Hill, D. A., "Plane wave integral representation for fields in reverberation chambers," IEEE Trans.Ele ctromagn.Comp at., Vol. 40, 209-217, 1998. Google Scholar