Analog Design
Electromagnetic Design and Simulation
Inconsistent results between Terminal Wave Port and Terminal Lumped Port when simulating a flat FCC cable ... can someone help me ?

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You compare apples to oranges ...

Polar gives you the differential impedance between the two center lines, with the outer lines as ground.
In the HFSS wave port solution, it seems that you excite a single wire with neighbors left and right as ground (somewhat like coplanar)
In HFSS lumped port solution, you excite the outermost two wires in differential mode.

[QUOTE="volker@muehlhaus, post: 1783237, member: 543974"] You compare apples to oranges ... Polar gives you the [B]differential [/B]impedance between the two [B]center [/B]lines, with the outer lines as ground. In the HFSS wave port solution, it seems that you excite a [B]single [/B]wire with neighbors left and right as ground (somewhat like coplanar) In HFSS lumped port solution, you excite the [B]outermost [/B]two wires in [B]differential [/B]mode. [/QUOTE]

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Analog Design
Electromagnetic Design and Simulation
Inconsistent results between Terminal Wave Port and Terminal Lumped Port when simulating a flat FCC cable ... can someone help me ?

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