I never sleep ........

John

> -----Original Message-----
> From: Brian Guralnick [mailto:[EMAIL PROTECTED] 
> Sent: Sunday, March 28, 2004 11:56 PM
> To: Protel EDA Forum
> Subject: Re: [PEDA] Antenna coil
> 
> > For spirals you could try Brians script as well for drafting after 
> > doin 'what ifs' in the other application.
> >
> > http://www.proteluser.com/bbs/showthread.php?t=17
> >
> > John
> 
> Hey, I was just replying to that as well.......  You won 
> hitting the "Send"
> on your email by a few seconds...
> 
> _____________
> Brian Guralnick
> 
> 
> ----- Original Message -----
> From: "John A. Ross [RSDTV]" <[EMAIL PROTECTED]>
> To: "'Protel EDA Forum'" <[EMAIL PROTECTED]>
> Sent: Sunday, March 28, 2004 5:57 PM
> Subject: Re: [PEDA] Antenna coil
> 
> 
> >
> > > -----Original Message-----
> > > From: matt [mailto:[EMAIL PROTECTED]
> > > Sent: Sunday, March 28, 2004 10:18 PM
> > > To: Protel EDA Forum
> > > Subject: Re: [PEDA] Antenna coil
> > >
> > > you may try to design  a spiral inductor instead . Download
> > > the free software called Appcad (from Agilent) , it has
> > > spiral inductors design. Play some what if scenarios with it
> > > and you'll see if you can do it one way or another, with and
> > > without vias .
> > >
> > > Best Regards,
> > > Matt Tudor , MSEE
> > >
> > > ----- Original Message -----
> > > From: "John C. Echols" <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Sunday, March 28, 2004 3:32 PM
> > > Subject: [PEDA] Antenna coil
> > >
> > >
> > > > I'm the guy still using Protel 1.61 (1992) with Windows
> > > 3.11 and I'm
> > > > on a phone line....now that you're through laughing my
> > > question is -
> > > > my present project requires a coil for an antenna for a 
> "prox" card
> > > > reader.  The coil is about 3.25 X 4.25", 700uHy and takes
> > > 60 turns of
> > > > mag wire.  Can I do this with traces? The easiest would be
> > > 30 turns on
> > > > one side and one via to do 30 on the back.  I'd probably go
> > > .004/.004"
> > > > so it's not too hard for the board house and would only
> > > take .24 width
> > > > of board space.  Will this work or is the spacing too 
> big?  Or do I
> > > > need to do one turn on top, the next on bottom, next on
> > > top, etc?  All
> > > > the vias would take up too much room.
> > > >
> > > > Thanks for the help.
> > > >
> > > > John Echols
> > > >
> > > >
> > > >
> > >
> > >
> > >
> >
> >
> 
> 
> 



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