Re: [SI-LIST] : Fast edges with limited plane capacitance

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From: Vinu Arumugham (vinu@cisco.com)
Date: Fri Mar 17 2000 - 10:50:36 PST


MikonCons@aol.com wrote:

>
>
> 1. Any current carrying surface conductor will radiate in accord with its
> antenna efficiency. This efficiency is related to the relative match to the
> free space resistance of 120*PI = 377 ohms. For example, if you double the
> Zo of a surface trace operating at a given frequency and a given driving
> voltage, even though the trace current is reduced (for the fixed driving
> voltage), the radiated emissions from that trace will increase by greater
> than 6 dB.
>

Does this increase in emissions apply even if the line is terminated?

Vinu

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