[SI-LIST] Re: RLC value extraction for power plane
- From: steve weir <weirsi@xxxxxxxxxx>
- To: Rohit MISHRA <rohit.mishra@xxxxxx>
- Date: Fri, 05 Aug 2011 00:59:32 -0700
Rohit, fit poles and zeroes to the mag/phase response.
Steve.
On 8/5/2011 12:23 AM, Rohit MISHRA wrote:
> Hello Benny,
>
>
> Welcome to the world of Signal Integrity !! :-)
>
>
> I am not sure if hyperlynx has ability to extract RLGC values but you can
> sure use other field solvers like momentum, Q3D or HFSS to extract RLGC/Z
> parameters of power plane.
>
> To extract RLGC value from field solver, you don't need to define voltage
> values instead you define ports at both end of traces and define the
> frequency range of interest, that's all !
>
> Steve,
>
> I understand that ac current source can be used to find complex impedance or
> PDN impedance in this case but if someone is interested in finding RLGC
> values, how is it possible to extract from PDN impedance ??
>
> Rgds,
> Rohit
>
>
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
> Behalf Of steve weir
> Sent: Friday, August 05, 2011 11:49 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: RLC value extraction for power plane
>
> Define a port and apply an AC current source at the location where you
> want to know the impedance. Sweep the frequency range of interest. The
> complex voltage divided by the excitation current yields the complex
> impedance.
>
> Steve.
> On 8/4/2011 10:15 PM, Benny Luiss wrote:
>> Hi,
>>
>> I am Benny an SI novice.Can any one help how to extract RLC values for power
>> plane. I have tried in Cadence and Hyperlynx but couldn't able to extract
>> (even by removing voltage values assigned for the power nets).
>> Do any other software like Ansoft or HFSS provide this?
>>
>>
>> Thanks,
>> Benny
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>
--
Steve Weir
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