Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 56 > pp. 109-128


By M. Chedid, I. Belov, and P. Leisner

Full Article PDF (951 KB)

A radiated susceptibility problem has been identified and solved by means of simulations for a wearable computer system in the frequency range 30 MHz-1 GHz. Simulation strategy is presented for analyzing the effects induced by an electromagnetic plane wave within the system comprising infra-red sensors connected by coaxial cables. A procedure of creating a TLM model of the coaxial cable with controlled electromagnetic coupling characteristics on a coarse grid is proposed. Results are verified by means of theoretical calculations. Different sensor enclosures and filtering circuits are analyzed and implemented to meet the hard electromagnetic compatibility requirements while not interfering with the functionality of the wearable application.

M. Chedid, I. Belov, and P. Leisner, "Electromagnetic Coupling to a Wearable Application Based on Coaxial Cable Architecture," Progress In Electromagnetics Research, Vol. 56, 109-128, 2006.

1. MIL-STD-461E, Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems, Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment, Department of Defense Interface Standards, USA, 1999.

2. Liang, C., X. Shi, and J. Yang, "The variational closed-form formulae for the capacitance of one type of conformal coaxial lines," Progress In Electromagnetics Research, Vol. 45, 277-289, 2004.

3. White, I., The VHF/UHF DX Book, Radio Society of Great Britain, UK, 1995.

4. Tesche, F. M., M. Ianoz, and V. T. Karlsson, EMC Analysis Methods and Computational Models, John Wiley & Sons, New York, 1997.

5. Vance, E. F., Coupling to Shielded Cables, Wiley-Interscience, New York, 1978.

6. Smith, A. A., Coupling of External Electromagnetic Fields to Transmission Lines, John Wiley & Sons, New York, 1977.

7. Swe, T. N. and K. S. Yeo, "An accurate photodiode model for DC and high frequency SPICE circuit simulation," Nanotech, Vol. 1, 362-365, 2001.

8. Lo, Y. T., "A note on the cylindrical antenna of noncircular cross section," J. App. Phys., Vol. 24, 1338-1339, 1953.

9. Herring, J. L., Developments in the Transmission-Line Modelling Method for Electromagnetic Compatibility Studies, University of Nottingham, UK, 1993.

10. Grant, J. P., R. N. Clarke, G. T. Symm, and N. M. Spyrou, "In vivo dielectric properties of human skin from 50 MHz to 2.0 GHz," Physics in Medicine and Biology, Vol. 33, No. 5, 607-612, 1988.

© Copyright 2014 EMW Publishing. All Rights Reserved