George, the sort of component you say AVX are developing is already in the prior art. For their own reasons, the manufacturer does not openly advertise this application. I do know that this stuff is out there in volume production. Regards, Steve. George Korony wrote: > Content-Type: multipart/alternative; > boundary="----=_NextPart_002_0008_01C7B973.5B78CED0" > > ------=_NextPart_002_0008_01C7B973.5B78CED0 > Content-Type: text/plain; > charset="iso-8859-1" > Content-Transfer-Encoding: 7bit > > BlankHi All, > I am not a board designer, but I do design parts that other people put on > boards. We are working on a new (patent protected) concept: the " > DC-blocking transmission-line". > Basically the idea is to build a pair of capacitors that can be intercalated > on the differential signal traces, having a controlled characteristic > impedance between the two capacitors, the obvious scope is to reduce the > reflections that may show up due the DC-blocking capacitors. > One request, we have, is that the characteristic impedance between the two > capacitors (treated as a simple transmission line) should be 100 Ohm. > Of course things are not so simple; and my question is: does anyone have a > different approach to this problem? > Thanks for any suggestion, George. > > > > > > ------=_NextPart_002_0008_01C7B973.5B78CED0 > Content-Type: text/html; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> > <HTML><HEAD><TITLE id=3DridTitle>Blank</TITLE> > <META http-equiv=3DContent-Type content=3D"text/html; = > charset=3Diso-8859-1"> > <STYLE>BODY { > MARGIN-TOP: 25px; FONT-SIZE: 10pt; MARGIN-LEFT: 25px; COLOR: #000000; = > FONT-FAMILY: Arial, Helvetica > } > P.msoNormal { > MARGIN-TOP: 0px; FONT-SIZE: 10pt; MARGIN-LEFT: 0px; COLOR: #ffffcc; = > FONT-FAMILY: Helvetica, "Times New Roman" > } > LI.msoNormal { > MARGIN-TOP: 0px; FONT-SIZE: 10pt; MARGIN-LEFT: 0px; COLOR: #ffffcc; = > FONT-FAMILY: Helvetica, "Times New Roman" > } > </STYLE> > > <META content=3D"MSHTML 6.00.2800.1555" name=3DGENERATOR></HEAD> > <BODY id=3DridBody background=3Dcid:309093914@28062007-0397> > <DIV><SPAN class=3D309093914-28062007>Hi All,</SPAN></DIV> > <DIV><SPAN class=3D309093914-28062007>I am not a board designer, but I = > do design=20 > parts that other people put on boards. We are working on = > a new =20 > (patent protected) concept: the " DC-blocking = > transmission-line".</SPAN></DIV> > <DIV><SPAN class=3D309093914-28062007>Basically the idea is to build a = > pair of=20 > capacitors that can be intercalated on the differential signal = > traces,=20 > having a controlled characteristic impedance between the two capacitors, = > the=20 > obvious scope is to reduce the reflections that may show up due the = > > DC-blocking capacitors.</SPAN></DIV> > <DIV><SPAN class=3D309093914-28062007>One request, we have, is that the=20 > characteristic impedance between the two capacitors (treated as a simple = > > transmission line) should be 100 Ohm.</SPAN></DIV> > <DIV><SPAN class=3D309093914-28062007>Of course things are not so = > simple; and my=20 > question is: does anyone have a different approach to this = > problem?</SPAN></DIV> > <DIV><SPAN class=3D309093914-28062007>Thanks for any suggestion,=20 > George.</SPAN></DIV> > <DIV><SPAN class=3D309093914-28062007></SPAN> </DIV> > <P> </P> > <P> </P></BODY></HTML> > > ------=_NextPart_002_0008_01C7B973.5B78CED0-- > > > -- Binary/unsupported file stripped by Ecartis -- > -- Type: image/gif > -- File: Blank Bkgrd.gif > > > > -- Binary/unsupported file stripped by Ecartis -- > -- Type: text/x-vcard > -- File: George Korony.vcf > > > ------------------------------------------------------------------ > 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