Silver is best, as is well known, but only about 4-5% better than copper. Silver flash over smooth copper is probably as good as you'll get in a high frequency PCB, but see previous posts regarding the effects of solder mask. Orin Laney On Wed, 29 Aug 2007 12:36:34 -0700 "Muranyi, Arpad" <Arpad_Muranyi@xxxxxxxxxx> writes: > Air is not a conductor... The > question asked what is the best > conductor... > > Arpad > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D= > =3D=3D=3D=3D=3D=3D=20 > > -----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx > [mailto:si-list-bounce@xxxxxxxxxxxxx] > On Behalf Of ronald miller > Sent: Wednesday, August 29, 2007 12:32 PM > To: sridhar@xxxxxxxxxxxx > Cc: si-list@xxxxxxxxxxxxx > Subject: [SI-LIST] Re: Conductor loss reduction at High Frequency > > Use Air > Ron > > M Sridhar wrote: > > >Hi Members, > >What are the methods by which we can reduce the conductor losses at > high frequency?(Loss due to skin effect, Dielectric losses etc.) > >Which is the best conductor at higher frequency? in the range of > 1-5 > GHz > > > >Thanks, > >Sridhar > >------------------------------------------------------------------ > >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 technical documents are available at: > > http://www.si-list.net > > > >List archives are viewable at: =20 > > //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 > > =20 > > > > > > =20 > > > > --=20 > Ronald Miller > Ghz Data, Signal Integrity Consulting > 7721 Sunset Ave. > Newark CA 94560 > tel 510-793-4744 > cell 510-377-9380 > fax 510-742-6686 > www.ghzdata.com > > > > -- Binary/unsupported file stripped by Ecartis -- > -- Type: application/vnd.ms-powerpoint > -- File: HCA Presentation.ppt > > > ------------------------------------------------------------------ > 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 technical documents are available at: > http://www.si-list.net > > List archives are viewable at: =20 > //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 > =20 > > ------------------------------------------------------------------ > 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 technical documents are available at: > http://www.si-list.net > > 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 > > > > ------------------------------------------------------------------ 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 technical documents are available at: http://www.si-list.net 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