Dielectric loss does not increase the effective impedance of either the near-end or far-end ports. Steve. On 1/6/2012 3:14 AM, rajneesh shukla wrote: > > Thanks Steve but question remains unanswered !! > > I agree there will be a loss in energy due to dielectric loss but I > was talking about loss in amplitude of signal (voltage) not loss in > total energy, Energy loss does not always translates into voltage > loss, right ? Receiver senses voltage( Potential Energy per unit > charge) not total energy. > > As per basic circuit theory, If I have a driver that has zero o/p > impedance is driving a 50 Ohm load and now if I connect 100 Ohm > resistance across this load, Though there is energy loss due to 100 > ohm resistance but still my load will see the same voltage, agree ? > No I do not agree. If you change the port impedance you will change the amount of energy absorbed and the amount of energy reflected. > In transmission line, If series loss i.e. conductor loss is zero then > I don't find the reason of any voltage drop in transmission line coz > dielectric loss which is shunt loss can only dissipate total energy > but can't change amplitude(voltage) of signal. > No I do not agree. If such a thing were true then you could heat your coffee for free by making a long transmission line and setting your cup on top of it. > > Do you find any discrepancy in this analogy ? > Yes: Conservation of Energy and Ohm's Law. > > > On Fri, Jan 6, 2012 at 2:40 PM, steve weir <weirsi@xxxxxxxxxx > <mailto:weirsi@xxxxxxxxxx>> wrote: > > Follow the energy. Achieve enlightenment. Of the energy that a shunt > draws, how much of that energy remains available to the signal? > > Steve. > On 1/6/2012 12:54 AM, rajneesh shukla wrote: > > Experts, > > As we know for perfectly matched line insertion loss is due to > ohmic& > > dielctric losses and due to these losses we see loss in > rise/fall time as > > well as loss in amplitude of signal. > > > > My question is what actually affects amplitude loss, is it ohmic > loss or > > dielectric loss ? My understanding says, it should be ohmic loss as > > it comes in series coz dielectric one is shunt loss. If this > analogy is > > correct then a channel having very low ohmic loss but significant > > dielectric loss will have only changes in rise time but minimal > amplitude > > loss, right ?? > > > > Rajneesh > > > > > > ------------------------------------------------------------------ > > To unsubscribe from si-list: > > si-list-request@xxxxxxxxxxxxx > <mailto: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 > <mailto:si-list-request@xxxxxxxxxxxxx> with 'help' in the Subject > field > > > > > > List technical documents are available at: > > http://www.si-list.net <http://www.si-list.net/> > > > > List archives are viewable at: > > //www.freelists.org/archives/si-list > > > > Old (prior to June 6, 2001) list archives are viewable at: > > http://www.qsl.net/wb6tpu > > > > > > > > > -- > Steve Weir > IPBLOX, LLC > 150 N. Center St. #211 > Reno, NV 89501 > www.ipblox.com <http://www.ipblox.com/> > > (775) 299-4236 Business > (866) 675-4630 Toll-free > (707) 780-1951 Fax > > All contents Copyright (c)2012 IPBLOX, LLC. All Rights Reserved. > This e-mail may contain confidential material. > If you are not the intended recipient, please destroy all records > and notify the sender. > > ------------------------------------------------------------------ > To unsubscribe from si-list: > si-list-request@xxxxxxxxxxxxx > <mailto: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 > <mailto:si-list-request@xxxxxxxxxxxxx> with 'help' in the Subject > field > > > List technical documents are available at: > http://www.si-list.net <http://www.si-list.net/> > > List archives are viewable at: > //www.freelists.org/archives/si-list > > Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > > > -- Steve Weir IPBLOX, LLC 150 N. Center St. #211 Reno, NV 89501 www.ipblox.com (775) 299-4236 Business (866) 675-4630 Toll-free (707) 780-1951 Fax All contents Copyright (c)2012 IPBLOX, LLC. All Rights Reserved. This e-mail may contain confidential material. If you are not the intended recipient, please destroy all records and notify the sender. ------------------------------------------------------------------ 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 Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu