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prolongation of the legs ruins the results

时间:03-25 整理:3721RD 点击:
Hello, i have built a simple coupler which i need to connect to other couplers, but when i extended the legs of the ports I get a drastics change in the results,as shown in the attached photos bellow.
Why it happens, in physics point of view the width of the line changes the port , i have not changed the width only prolonged the length.
what needs to be done to safely connect several componnets?(which the sam copper material)

Thanks

An obvious conclusion from the results is that the "legs" don't are 50 ohms impedance lines, as presumed by the design.

hello the main problem is that my S11 S22 S33 S44 are noot equal ,although my dimentions are equals

is the a way to see where is the problem?

Thanks

Would you mind to show all designed line impedances and lengths?

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