[SI-LIST] Re: 90 degree turn in PCB tracks
- From: "Vishnu Mohan" <vishyin8@xxxxxxxxx>
- To: lijun_hit@xxxxxxxxx
- Date: Tue, 25 Jul 2006 12:13:31 +0530
Dear Dhaval,
To my kowledge 90 degree bends are not recomended because of the acid trap.
Some people says 90 degree bend can cause more reflection than 45 degree,
but it is not true. At high frequency 90 degrees produce less reflection
than 45 degree.
Please find the attached document.
With Regards
Vishnu Mohan
On 7/25/06, jun li <lijun_hit@xxxxxxxxx> wrote:
>
> I read a little about this topic. To 90 degree bend, there will be overlap
> area. It behaves as capacitive discontinuity. Moreover, the sharp point at
> the corner will enlarge electrical field.
>
> regards
>
>
> Dhaval Bhodia <bhodia1@xxxxxxxxx> wrote:
> Dear Experts
> I want to know that why PCB tracks can not have
> 90 degree bend ? second why 45 degree bend is most
> preferable ? anybody has made any analysis on bending
> of PCB tracks ? what are the technical issues will
> come if some one makes 90 degree bend in PCB ? What
> are electrone and transmission line charasterisic
> stops to make that 90 degree turn in PCB tracks ?
> Regards
> Dhaval
> __________________________________________________
>
>
> ---------------------------------
> Do you Yahoo!?
> Next-gen email? Have it all with the all-new Yahoo! Mail Beta.
>
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> //www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
> List FAQ wiki page is located at:
> http://si-list.org/wiki/wiki.pl?Si-List_FAQ
>
> List technical documents are available at:
> http://www.si-list.org
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
> or at our remote archives:
> http://groups.yahoo.com/group/si-list/messages
> Old (prior to June 6, 2001) list archives are viewable at:
> http://www.qsl.net/wb6tpu
>
>
>
-- Binary/unsupported file stripped by Ecartis --
-- Type: application/pdf
-- File: 90deg.pdf
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List FAQ wiki page is located at:
http://si-list.org/wiki/wiki.pl?Si-List_FAQ
List technical documents are available at:
http://www.si-list.org
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
