The modelling of EM leakage into advanced composite enclosures using the TLM technique

✍ Scribed by A. Mallik; C. P. Loller

• Publisher: John Wiley and Sons
• Year: 1989
• Tongue: English
• Weight: 507 KB
• Volume: 2
• Category: Article
• ISSN: 0894-3370
• DOI: 10.1002/jnm.1660020407

✦ Synopsis

The TLM technique has been enhanced to allow the accurate modelling of EM diffusion through advanced composite material shells. This is a significant development owing to the rapidly increasing use of conducting composite materials in aerospace vehicle design. The accurate E M modelling of this class of materials is important for correct design of vehicles with regard to electromagnetic compatibility (EMC).

Existing 3-D time-domain TLM models a non-perfectly conducting shell using a resistive sheet (or sheets) to simulate the surface. The results from this model are shown to be slightly inaccurate and require lengthy computer solution times. A separate 1-D, frequency-domain transmission-line model has been developed elsewhere to better analyse the diffusion properties of composite materials. The incorporation of the results from this frequency domain code into the 3-D time-domain TLM algorithm is outlined.