Re: [SI-LIST] : Antenna Problem on the Board

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From: Sunil Kumar (sunilb@cdotb.ernet.in)
Date: Wed May 23 2001 - 00:13:57 PDT


Hello Subramanya

As the bandwidth of a digital signal depends on it's rise time
(roughly given by 0.35/rise_time), the radiation/transmission line effect
depend on the rise time.

Sunil

 On Wed, 23 May 2001, subramanya C K wrote:

> Hello SI Gurus,
> I have a basic question here. We all know that "Right angled traces are never used on PCBs" as the
> act as antennas (better antennas than the curved traces). In an article I read that this radiation
> is due not to the frequency of the signal , but to it's rise time. Could someone please explain me
> this theory ?
>
>
> Thanks and Regards,
> Subramanya C K
>
>

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