*From*: Cristian Gozzi <cristian.gozzi@xxxxxxxxx>*To*: Charles.Grasso@xxxxxxxxxxxx*Date*: Tue, 23 Sep 2014 17:16:54 -0700

Really nice tool :-) I was not aware of it Thanks a lot for sharing it... Cris 2014-09-23 7:39 GMT-07:00 Grasso, Charles <Charles.Grasso@xxxxxxxxxxxx>: > Saturn has a free PCB toolkit that reports transmission line properties. > Its equation driven - but within its constraints > might give you what you need. > Best Regards > Charles Grasso > Compliance Engineer > Echostar Communications > (w) 303-706-5467 > (c) 303-204-2974 > (t) 3032042974@xxxxxxxxx > (e) charles.grasso@xxxxxxxxxxxx > (e2) chasgrasso@xxxxxxxxx > > -----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] > On Behalf Of alfred1520list > Sent: Wednesday, September 17, 2014 11:18 AM > To: Dave Cuthbert > Cc: C.C. Hwang; çææ¾; si-list@xxxxxxxxxxxxx > Subject: [SI-LIST] Re: Need a equation of inductance calculation for > microstrip over the ground plane > > Ah, it is obvious, the delay is for the entire length of the transmission > line. Sorry for the noise. > On September 17, 2014 8:35:04 AM PDT, Dave Cuthbert < > telegrapher9@xxxxxxxxx> wrote: > >The capacitance is the total capacitance of the t-line. Knowing the > >effective relative dielectric constant and the line length you can > >calculate the propagation delay. > > > >To check that you have calculated the correct L and C, run it thru the > >formula Z = (L/C)^0.5 and Z should be the characteristic impedance. > > > > Dave Cuthbert > > > >On Wed, Sep 17, 2014 at 8:57 AM, alfred1520list > ><alfred1520list@xxxxxxxxx> > >wrote: > > > >> Hi Dave, > >> > >> Nice to know. Thanks. > >> > >> Does length play a part? Is it per unit length? What unit? Thanks. > >> > >> Best regards > >> Alfred > >> > >> On September 17, 2014 5:57:16 AM PDT, Dave Cuthbert < > >> telegrapher9@xxxxxxxxx> wrote: > >>> > >>> Song, here are my two favorite SI formulas (that's pretty geeky I > >know): > >>> C = t/Z > >>> > >>> L = t x Z > >>> > >>> The capacitance of a t-line (microstrip in your case) is the > >propagation > >>> delay divided by the line characteristic impedance. > >>> > >>> The inductance of a t-line is the propagation delay multiplied by > >the line > >>> characteristic impedance. > >>> > >>> Let's say you have a 50 ohm line and the propagation delay is 100 > >ps. The > >>> capacitance is 2 pF and the inductance is 5 nH. > >>> > >>> Dave Cuthbert, Narte Certified EMC Engineer > >>> Consultant for EMC, SI, RF, Power Electronics, and most > >everything analog > >>> > >>> On Tue, Sep 16, 2014 at 9:22 PM, C.C. Hwang <cchwang2013@xxxxxxxxx> > >wrote: > >>> > >>> You can use a 2D solver (such as http://ataitec.com/free_2d_solver) > >to > >>>> compute all RLGC. > >>>> Carl > >>>> > >>>> On Sun, Sep 14, 2014 at 4:42 PM, > ><wangwensong1986@xxxxxxxxx> wrote: > >>>> > >>>> Hello everyone, > >>>>> Now I want to calculate a approximate value for inductance of > >microstrip > >>>>> line over a ground plane. > >>>>> > >>>>> Anyone have any references you can send my way? I know I've been > >able to > >>>>> find this stuff in the past, but right now I'm coming up empty... > >>>>> > >>>>> Thank you. > >>>>> > >>>>> All the best, > >>>>> > >>>>> Song > >>>>> > >>>>> > >>>>> ------------------------------ > >>>>> > >>>>> 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: > >>>>> http://www.freelists.org/webpage/si-list > >>>>> > >>>>> For help: > >>>>> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > >>>>> > >>>>> > >>>>> List forum is accessible at: > >>>>> http://tech.groups.yahoo.com/group/si-list > >>>>> > >>>>> List archives are viewable at: > >>>>> http://www.freelists.org/archives/si-list > >>>>> > >>>>> 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: > >>>> http://www.freelists.org/webpage/si-list > >>>> > >>>> For help: > >>>> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > >>>> > >>>> > >>>> List forum is accessible at: > >>>> http://tech.groups.yahoo.com/group/si-list > >>>> > >>>> List archives are viewable at: > >>>> http://www.freelists.org/archives/si-list > >>>> > >>>> 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: > >>> http://www.freelists.org/webpage/si-list > >>> > >>> For help: > >>> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > >>> > >>> > >>> List forum is accessible at: > >>> http://tech.groups.yahoo.com/group/si-list > >>> > >>> List archives are viewable at: > >>> http://www.freelists.org/archives/si-list > >>> > >>> Old (prior to June 6, 2001) list archives are viewable at: > >>> http://www.qsl.net/wb6tpu > >>> > >>> > >>> > >> -- > >> Sent from my Android phone with K-9 Mail. Please excuse my brevity. > >> > > -- > Sent from my Android phone with K-9 Mail. Please excuse my brevity. > > ------------------------------------------------------------------ > 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: > http://www.freelists.org/webpage/si-list > > For help: > si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > > > List forum is accessible at: > http://tech.groups.yahoo.com/group/si-list > > List archives are viewable at: > http://www.freelists.org/archives/si-list > > 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: > http://www.freelists.org/webpage/si-list > > For help: > si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > > > List forum is accessible at: > http://tech.groups.yahoo.com/group/si-list > > List archives are viewable at: > http://www.freelists.org/archives/si-list > > 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: http://www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: http://www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu

**References**:**[SI-LIST] Need a equation of inductance calculation for microstrip over the ground plane***From:*王文松

**[SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane***From:*C.C. Hwang

**[SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane***From:*Dave Cuthbert

**[SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane***From:*alfred1520list

**[SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane***From:*Dave Cuthbert

**[SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane***From:*alfred1520list

**[SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane***From:*Grasso, Charles

- » [SI-LIST] Need a equation of inductance calculation for microstrip over the ground plane - 王文松
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - C.C. Hwang
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - Dave Cuthbert
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - alfred1520list
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - colin_warwick
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - Lambert Simonovich
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - Dave Cuthbert
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - alfred1520list
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - Grasso, Charles
- » [SI-LIST] Re: Need a equation of inductance calculation for microstrip over the ground plane - Cristian Gozzi