[SI-LIST] Return loss

  • From: SureshKumar Ayyavu <sureshkumar.ayyavu@xxxxxxxxx>
  • To: eric@xxxxxxxxxxxxxxx
  • Date: Thu, 6 Apr 2017 15:25:42 +0530

Dear Experts,

I'm working on the optimization of  a PCB for 50 to 70 frequency band... For 
this frequency band , I'm expecting RL<-17dB.
My topology is DUT via - Coplanar line - via - microstrip - connector.

I did the simulation and get the 50 ohm +_5% for the whole path. But the RL is 
very poor in 50-70 GHz band.

Please guide , how to improve the RL in that frequency band ???

Thanks
Suresh

Sent from my iPhone 

On 29-Mar-2017, at 7:35 PM, Eric Bogatin <eric@xxxxxxxxxxxxxxx> wrote:

Ever wonder just what is a Smith Chart and should I care? Check out my
latest blog on the SI Journal:
https://www.signalintegrityjournal.com/blogs/4-eric-bogatin-signal-integrity
-journal-editor/post/383-decoding-the-smith-chart-for-signal-integrity-engin
eers


--eric











*******************************************************
Dr. Eric Bogatin

Dean,  <http://www.bethesignal.com/> Signal Integrity Academy

Editor,  <https://www.signalintegrityjournal.com/> Signal Integrity Journal,


Adjunct Prof, ECEE Univ of Colorado, Boulder

Director, Teledyne LeCroy Front Range Signal Integrity Lab

105 S Sunset St, Suite J

Longmont, CO 80501 USA

Twitter @beTheSignal
e:  <mailto:eric@xxxxxxxxxxxxxxx> eric@xxxxxxxxxxxxxxx

cell: 913-424-4333 

<http://www.bethesignal.com/> www.beTheSignal.com 
******************************************************





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