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Simulators >> RF Simulators >> Optimizing on both S-parameters and Harmonic Balance in ADS at the same time
https://designers-guide.org/forum/YaBB.pl?num=1253264225

Message started by drgz on Sep 18^th, 2009, 1:57am

Title: Optimizing on both S-parameters and Harmonic Balance in ADS at the same time
Post by drgz on Sep 18^th, 2009, 1:57am

As the subject title says, does anybody know how I do this?

I'm designing an amplifier for a project at the university, and I want to try to optimize the design I already got a bit more.

At the moment a harmonic balance simulation gives me a PAE of about 64% at the 1dB compression point, while the load-pull simulator tells me that I might achieve 73% PAE if I change my load to the "optimal" one. I know that higher PAE usually means loss of gain, but since I got a few dB to go on with respect to the specifications, I thought I might try to squeeze out a few more %.

Now the thing is that this specific load for optimum PAE doesn't make the design fulfill the other specs like i.e. gain, return loss at in- and output, etc, but I still believe that it's possible to increase the PAE and still fulfill the other specs.

So, I'm wondering if it's possible to simulate on both s-parameters and a harmonic balance at the same time, such that I can specify goals for S21dB, S11dB, S22dB, and at the same time set a goal for PAE at the 1dB compression point?

Title: Re: Optimizing on both S-parameters and Harmonic Balance in ADS at the same time
Post by drgz on Sep 19^th, 2009, 9:32am

Figured it out, a LSSP simulation was what I needed. :)