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Thanks for helping me.
I am asking how to calculate dB (trivial) for 0.3:1 power ratio. (Sorry, not amplitude)
If I know the difference in dB, I can design transmission line transformer.
I mean the power ratio of 0.3:1
Thanks for your answer.
I increased the feeding line of port 2 and port 5 to keep the same phase for each array.
What I want to know is how to calculate difference between S21 and S31 to meet amplitude ratio of 0.3 : 1.
For example if the difference between S21 and S31 is -7dB, then if S21 is...
Hello
I am designing microstrip array antnna.
Number of the array is 4, and amplidute distribution of each array is 0.3, 1, 1, 0.3(W).
I want to design divider for feeding of each array antenna like below.
For designing divider, I want to know how to calculate the difference between S21 and S31...
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