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Optimize a Transmission Line for Multiple Input Impedances by Zin in ADS

mrdummy

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I have several values of input impedance (Zin) at different frequencies, and I want to design a transmission line that is optimal for all of them. How can I define multiple Zin values in my simulation? For example, can I use something like Zlist to input them?

44.png
 
Solution
my problem
how put i different z in zlist?
Do you know S-parameter files in Touchstone format? They are inserted in ADS as S1P data blocks.

You can simply create the *.s1p file from your data, the format is quite easy:

# GHZ Z RI R 1.0
2.50000000 1.931798 33.86815
5.00000000 2.821692 70.57891
7.50000000 4.549278 114.5941
10.0000000 8.005523 173.2321
12.5000000 15.82539 262.4717
15.0000000 38.63353 427.7149

The header line says these are Z-parameters in real and imaginary part format, frequenz unit is GHz
In the example above, impedance at 5 GHz is 2.82 + j 70.57 Ohm etc.

Just create this in text editor and save as filename.s1p, then include in ADS using S1P data block.

...
Is adding matching networks at the ports that don't, part of the plan?

my plan
1- get some impedance from somewhere for different freq
2-put them in Zlist
3-put matching network for different frequency
4-optimize my matching network
5-my optimize goal is reach optimom network for all freq

my problem
how put i different z in zlist?
 
my problem
how put i different z in zlist?
Do you know S-parameter files in Touchstone format? They are inserted in ADS as S1P data blocks.

You can simply create the *.s1p file from your data, the format is quite easy:

# GHZ Z RI R 1.0
2.50000000 1.931798 33.86815
5.00000000 2.821692 70.57891
7.50000000 4.549278 114.5941
10.0000000 8.005523 173.2321
12.5000000 15.82539 262.4717
15.0000000 38.63353 427.7149

The header line says these are Z-parameters in real and imaginary part format, frequenz unit is GHz
In the example above, impedance at 5 GHz is 2.82 + j 70.57 Ohm etc.

Just create this in text editor and save as filename.s1p, then include in ADS using S1P data block.

--- Updated ---

One more comment: your simulation testbench is not a good idea. For your simulation setup, use the S1P data as the frequency-dependent load and a fixed 50 Ohm source port. Optimize S11 at the 50 Ohm port.
 
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