SPICE simulations of non-ideal inductor behavior

[amal banerjee]

Could some electronics guru here plaease shed some light on this ?

I am running SPICE simulations of non-ideal inductors, that include
high frequency effects as skin and proximity. I am trying to see
the resonance peaks when the non-ideal inductor is placed in
parallel with a fixed value capacitor. The AC sweep freqienncy is
brtween 100 MHz 10 GHz. As I vary the fixed capacitor value, sometimes
the frequency response looks like that of a low pass filter, and at
other times it looks like the response of a high pass filter, but
never like that of a bandpass filter, as I expect to see.. Any reasons
why it would be like this ? Thanks in advance.

 

[Cursitor Doom]

On Mon, 17 Jun 2019 20:58:07 -0700, amal banerjee wrote:

Could some electronics guru here plaease shed some light on this ?

I am running SPICE simulations of non-ideal inductors, that include high
frequency effects as skin and proximity. I am trying to see the
resonance peaks when the non-ideal inductor is placed in parallel with a
fixed value capacitor. The AC sweep freqienncy is brtween 100 MHz 10
GHz. As I vary the fixed capacitor value, sometimes the frequency
response looks like that of a low pass filter, and at other times it
looks like the response of a high pass filter, but never like that of a
bandpass filter, as I expect to see.. Any reasons why it would be like
this ? Thanks in advance.

Can you provide the configuration you're using and all the various values
of *everything* you've included?



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[amal banerjee]

On Wednesday, June 19, 2019 at 2:12:55 AM UTC+5:30, Cursitor Doom wrote:

On Mon, 17 Jun 2019 20:58:07 -0700, amal banerjee wrote:

Could some electronics guru here plaease shed some light on this ?

I am running SPICE simulations of non-ideal inductors, that include high
frequency effects as skin and proximity. I am trying to see the
resonance peaks when the non-ideal inductor is placed in parallel with a
fixed value capacitor. The AC sweep freqienncy is brtween 100 MHz 10
GHz. As I vary the fixed capacitor value, sometimes the frequency
response looks like that of a low pass filter, and at other times it
looks like the response of a high pass filter, but never like that of a
bandpass filter, as I expect to see.. Any reasons why it would be like
this ? Thanks in advance.

Can you provide the configuration you're using and all the various values
of *everything* you've included?



--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.

I would be happy to post the ext SPICE netlist
here, if you feel interested, please let me know.