volume | PIER Journals

Abstract

The field-to-cable coupling cross section is proposed to evaluate the coupling performance of a single-braided coaxial cable. In addition, a new definition for the coax shielding effectiveness is suggested. Both the coupling cross section and the shielding effectiveness of a 1.25 m-length RG 58 C/U 50Î© coax are measured byemplo ying both the mode-tuned reverberation chamber and GTEM cell methodologies. The detailed measurement set-ups and results are presented. The mode-tuned reverberation chamber methodologyis proven to be beneficial for assessing the cable shielding and coupling characteristics over a wide frequencyrange.

1. Tsaliovich, A., Electromagnetic Shielding Handbook for Wired and Wireless EMC Applications, Kluwer Academic Publishers, 2001.

2. Jesch, R. L., "Measurement of shielding effectiveness of cable and shielding configuration bymo de-stirred techniques," IEEE Trans. Electromagn. Compat., Vol. 30, No. 3, 222-228, 1988.
doi:10.1109/15.3300

3. Crawford, M. L. and J. M. Ladbury, "Mode-stirred chamber for measuring shielding effectiveness of cable and connectors an assessment of MIL-STD-1344A Method 3008," Proc. of IEEE International Symposium on EMC, 30-36, 1988.

4. Johnson, D. M. and M. O. Hatfield, "Mode-stirred chamber shielding effectiveness testing of a multiconductor cable assembly," Proc. of IEEE International Symposium on EMC, 396-400, 1995.

5. Lo, Y. T. and S. W. Lee (Eds.), Antenna Handbook, Chapman & Hall, New York, 1993.

6. Hill, D. A., "Plane wave integral representation for fields in reverberation chambers," IEEE Trans. Electromagn. Compat., Vol. 40, No. 3, 209-217, 1998.
doi:10.1109/15.709418

7. Harris, J. M., "A comparison on bulk cable current injection and radiated field susceptibilitytest methods," Proc. of IEEE International Symposium on EMC, No. 8, 67-72, 1993.

8. Backstrom, M.J. Loren, G. Eriksson, and H. Asander, "Microwave coupling into a generic object: properties of measured angular receiving pattern and its significance for testing," Proc. of 2001 IEEE International Symposium on EMC, No. 8, 1227-1232, 2001.

9. Mcmahon, A. T.J. Weber, A. Prothe, and A. Pesta, "Shielding effectiveness measurements for an SHF/EHF field-to-wire coupling model," Proc. of IEEE 1989 National Symposium on EMC, 414-417, 1989.

10. Silfverskiold, S., M. Backstrom, and J. Loren, "Microwave foldto wire coupling measurements in anechoic and reverberation chambers," IEEE Trans. Electromagn. Compat., Vol. 44, No. 1, 222-232, 2002.
doi:10.1109/15.990729

11. MIL-STD-285 "Method of attenuation measurements for enclosures, electromagnetic shielding, for electronic test purposes," IEEE-TD-299, 1997.

Dr. Ya Wang

Dr. Wee Jin Koh

Dr. C. Lee