How to design input and output matching ckt of PA for getting desired o/p Power and PAE

[narayani]

I have a load pull analysis values of Power Amplifier at Ka- Band 27 GHz for Maximum Power. Using Load Pull Analysis values of Zin (2.485- j11.369) and Zload (19.323+j59.271), I have designed the input and output matching circuits and tried to get values of S12 and S21 equals 0 and S11 and S22 below -15 dB using ADS tool. But I couldn't get values S21 and S12 equals 0 (zero) and S11 and S22 below -15 dB. Once I get these values, I want to get desired output power closer to 30.201 and PAE 53.467.
I have attched relavant screen shots. Somebody can help me to get desired values of Output Power and PAE.

 

[BigBoss]

Are you sure that you have optimized well Those Matching Circuit ? If you have done very well return Losses should be good.
In first schematic, S_ii has to be good, in second schematic S_jj has to be very good at 1 Single Frequency.
Those Matching Circuits are not for Broadband Matching and you probably miss a frequency while simulating. As you can see, the sliders show extreme values so there are some Optimization Errors.
How could you insert Tapered Transmission Lines ?? What is your point ?? How did you calculate those tapered lines in according to what ?

 

[volker@muehlhaus]

S12 and S21 equals 0

But I couldn't get values S21 and S12 equals 0 (zero)

Do you understand what S21 is?

 

[narayani]

Do you understand what S21 is?

S21 is Gain
Refer ADS Cook Book, page number 233 and 235 and why s21 and S12 should be zero?