Rectifier Design problem in ADS

[19127916]

Hello,

I have designed a doubler rectifier with a Pi-shaped matching network.
in my first design, I did not use the short copper connections required for fabrication and I got acceptable results. The problem is that when I added short coppers the S11 is still the same but I lost the efficiency (the efficiency dropped from over 35% to about 1.5%).

I would be thankful if anyone can help me with the problem.

First design without short coppers after the rectifier:

The second design that the efficiency dropped:

 

[dick_freebird]

Well, now it's time for you to determine which outcome is realistic.

Do your "short coppers" reveal their built-in R, L, C if you look
inside? Then, do those values comport with what you know about
your RF substrate (losses there) and layout geometry (R, L, C)?
You may have two "goalposts" here (no parasitics, and sandbagged)
with eventual, implementable reality lying between them.

Or, you could have introduced something new without meaning to.

That's plain good old fashioned detective work, as they say in the
movies.

 

[BigBoss]

Can you post your archived project file here ?

 

[19127916]

Well, now it's time for you to determine which outcome is realistic.

Do your "short coppers" reveal their built-in R, L, C if you look
inside? Then, do those values comport with what you know about
your RF substrate (losses there) and layout geometry (R, L, C)?
You may have two "goalposts" here (no parasitics, and sandbagged)
with eventual, implementable reality lying between them.

Or, you could have introduced something new without meaning to.

That's plain good old fashioned detective work, as they say in the
movies.

Thank you for your reply, but I did not understand what should I check to see what is the problem with my circuit.. Could you please explain a bit more?