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Propagation constant using port excitation
Posted Mar 23, 2017, 8:56 a.m. EDT RF & Microwave Engineering 0 Replies
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I have a question regarding the usage of propagation constant parameter for port excitation in the EM frequency domain simulation.
I tried to use the port functionality to excite an EM wave in a 2d geometry. I used a very simple rectangular geometry with PEC boundary conditions on the sides parallel to the x axis (length). The input excitation port was used on one of the side parallel to the y axis, with the user defined electric field as:
Ex=0, Ey=0, Ez=1.
1) Is the propagation constant defined always in the x direction (normal to excitation side).
2) If I assume that the propagation constant is in the x direction, I expect a phase shift in the Electric field vector for varying value (real) of propagation constant at any point in the x axis. However, I observed a change in magnitude (for emw.normE field) without any expected phase shift. Could you please help me to understand this?
Thanks,
Rahul
Hello Rahul Kishor
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