TDR obtained by fourier transform of S11

asked by zhangjun5960 lastest answer by istvan.novak

SMA launch optimization

Hi Experts,When I do SMA launch optimization, my SMA has characteristic impedance50ohm, but the trac......

asked by zhangjun5960 lastest answer by scott

characteristic impedance of the waveport

Hi friends,I have a question about port settig in HFSS. For the PTH vias onmotherboard for connector......

asked by zhangjun5960

impedance determination of a perticular interface......

Hi,I have seen specifying routing impedance of interfaces from Manufacturerslike forUSB Differential......

asked by malli.1729 lastest answer by colin_warwick

Compute plane cutout distance

Hi All,I can simulate and observe how far the reference plane should be from Accoupling capacitorâ??......

asked by balaseven

Can I help?

Hello to the SI list.I am new to this list but not new to problems of board design. I have read m......

asked by ralphmorrisonee lastest answer by olaney

Questions on PDN Application of Ferrite Beads

Hi,I'm Michele Manotti, a student of Politecnico di Milano from Italy. I'mdoing an academic research......

asked by michele.manotti lastest answer by weirsi

Effect of shielding on characteristic Impedance

Hi,Can anyone explain how a nearby quiet trace can effect the trace impedance in stripline. I want t......

asked by Naresh.Dhamija lastest answer by Gert.Havermann

how far/fast can M27500 S(T?)P cable be pushed to......

Hello SI-Listers,Has anyone measured, tested, characterized or had success with M27500 S(T?)P cable ......

asked by john.nieznanski

Impedance Matching via Gradual Trace Width Change......

I was contemplating a low impedance signal driving a high impedance input and wondered if this might......

asked by gnuarm.2006 lastest answer by olaney

ZERO is tricksy -- Re: Re: characteristic impedan......

On 4/9/2012 9:15 PM, steve weir wrote:> Zero is still nothing,OK, I feel I must comment on this.Evey......

asked by kevin.g.rhoads

characteristic impedance at DC

Hi,What is the characteristic impedance of a transmission line at DC? If youare saying Z0=sqrt(Rdc/G......

asked by haaeri lastest answer by haaeri

R: Re: Guard Traces

Another way to explain the change could be the following:as soon as you add a second trace or you al......

asked by gianguida

How to Model wires

Dear colegues,I have the challenge to model two boards with connectors and 10 meter Wirein between.F......

asked by l_watervoort lastest answer by Patrick_Carrier

Should I take into account PCB trace as a load ?

Hey, ExpertsI have a basic question that PCB trace can be a load ?I want evaluate the driving capab......

asked by yardala lastest answer by lgreen22

90 OHM Differential Impedance

Hi All, Basically USB signals require 45 Ω  characteristic impedance and have a target differenti......

asked by saril_k lastest answer by weirsi

Re: Effect of temperature on at 100C for DDR3/4 b......

Steve,Thanks for correcting me. Its 100CRegardsBarthi--- On Wed, 12/16/09, steve weir wrote:> From:......

asked by barthi1 lastest answer by wcmartin1

Effect of temperature on at 200C for DDR3/4 board......

Hi,What is the effect of temperature (200C) on characteristic impedance at DDR3/4 speeds and what th......

asked by barthi1 lastest answer by Gert.Havermann

changing Frequency Response!

Hi all I've faced a bad challenge in simulating frequency response of Xtalk between two nets in my P......

asked by mohaghtalab lastest answer by Gert.Havermann

Book - "Signal Integrity for PCB Designers" offer......

I have 50 copies of my book "Signal Integrity for PCB Designers" available from my publishers. I am ......

asked by for_si2003 lastest answer by for_si2003