S11=-32dB
S22=-26dB
S33=-26dB
S12,S21,S13,S31=-3.01dB
S23,S32=-30dB
Are we suppose to get the same s-parameter values for S11,S22 and S33?
No..you should not get the same value for this 3 parameter, S22 and s33 must be same while s11 must be different
If the value are not same as above,whatwill be the problem?
One arm might be longer then the other or practically the manufacturing can be a problem
By inserting groove to the layout design, i manage toget almost same value for the returnloss.Is it better?
No, you should get almost same as the shematics did cater a good model
because i have seen designs with almost same value and designs with different values.
Layout is a good EM simulator, it will give you a result which might resemble the exact result you will get once fabricated
Another question is, assuming 10% power loss at each output arm,is itstill acceptable in the industry for 40%:40% equal power split?
Err...power divider should not consume much power. If you do have a problem with there must be something wrong with your model[/b]