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Input port matching (S11) for N-Way Wilkinson Power Divider

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abuzaid10

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I designed a 3-Way equal-split Wilkinson Power Divider, but S11 is somewhat large, how can I decrease its value to be -15 dB?
Transmission parameters.PNG
 

What is the design center frequency?

Show me the characteristic impedances and isolation resistor values you have used?
 

My design frequency is 6 GHz, I found my mistake, it was in the calculation of the width of the transformer lines.
Now I got the -15 dB. Thank you
 

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