How to declare a two-tone power source in H-Spice?

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STOIKOV

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In H-Spice, how I can declare a two-tone power source, in order to simulate an intermodulation test ?
 

H-Spice two-tone

I don't think you can. Why not just use a three way resistive splitter to combine two sources?
 

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    STOIKOV

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H-Spice two-tone

use a transient analysis of HSPICE and after some periods see the FFT of output. because it may get much time it is better to take the FFT in MATLAB.
 

Re: H-Spice two-tone

mkhafaji, what I mean is how to set a voltage source with two different tones in H-Spice, in order to check the output spectrum to calculate IM3. Similar to ADS, where a power source can be declared with 2-tones, like 2 sources were combined.

May it be possible by adding two sources by writting a polynom or something similar ??
 

Re: H-Spice two-tone

use 2 transient inputs in series, each with a single frequency.
For example: net in is the input net for the circuit,

rs net0 in 50 ***source resistance
v1 net0 net1 sin(0 10m 100meg) **tone 1
v2 net1 0 sin(0 10m 101meg) ***tone 2

if for a differential input amplifier, a balun is needed.

Best regards
 

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