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1,184 Views 1 Reply Last post: Apr 9, 2012 1:53 PM by weston_beal RSS
Obi Lurker 1 posts since
Feb 4, 2011
Currently Being Moderated

Apr 9, 2012 6:30 AM

Modeling passive devices using s-parameters in HyperLynx LineSim v7.5

I have an old HyperLynx LineSim v7.5 that I would like to use to model an input circuit to an AC-coupled differential receiver. The input circuit consists of the connector and a transformer. So I am trying to figure out how to model 3-port RF components after adding the s-parameter files to the library (I started with a new LineSim free-form schematic). I am not sure how to go about it since the ports are not designated as inputs or outputs (see attached).

 

Can this HyperLynx version be used to model such circuits? If so, how do I go about assigning the ports to an IC? What I expect to end up with is a schematic that shows each of the 3 ports, with ports 2 and 3 connected to the differential input of a clock receiver model. Note, I am not very familiar with HyperLynx.

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weston_beal Aficionado 165 posts since
Sep 4, 2008
Currently Being Moderated
Apr 9, 2012 1:53 PM in response to: Obi
Re: Modeling passive devices using s-parameters in HyperLynx LineSim v7.5

It has been a very long time since I used HyperLynx 7.5, so I'm going from memory. I might remember this wrong. After you have all the pins that you want connected to the Touchstone network in the schematic, open the Assign Models window that you showed in the image file. Then the cells in the Circuit Connection column should have drop-down lists of the available pins in your schematic. You can map the S-parameter ports to the schematic pins. See if that works for you.

 

Regards,

Weston

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