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 > -----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 > > > > > > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
