coolsummer
Junior Member level 3
Hi, I’m new to EMX and I have some questions:
1. In EMX user manual, it says :”By default, EMX attaches a voltage source from each label in the structure to the ground plane.” and the infinite ground plane is beneath the bottom layer. I think the ground plane is beneath the bottom layer so that the simulation can include the influence of the substrate, is that right? (the ground plane in red has a certain width for display convenience)
2. In the schematic created by EMX (for example a single ended inductor), there is a “GND” net even if I specify nothing in “Grounds” of “Ports” section, does this “GND” net represent the infinite plane beneath the bottom layer in the picture?
3. What’s the difference between “Signal” and “Grounds” in “Ports” section and when should I specify ports in “Grounds” ? Does the “Grounds” mean infinite ground plane beneath the bottom layer? (Well I guess not but I’m just confused by them)
1. In EMX user manual, it says :”By default, EMX attaches a voltage source from each label in the structure to the ground plane.” and the infinite ground plane is beneath the bottom layer. I think the ground plane is beneath the bottom layer so that the simulation can include the influence of the substrate, is that right? (the ground plane in red has a certain width for display convenience)
2. In the schematic created by EMX (for example a single ended inductor), there is a “GND” net even if I specify nothing in “Grounds” of “Ports” section, does this “GND” net represent the infinite plane beneath the bottom layer in the picture?
3. What’s the difference between “Signal” and “Grounds” in “Ports” section and when should I specify ports in “Grounds” ? Does the “Grounds” mean infinite ground plane beneath the bottom layer? (Well I guess not but I’m just confused by them)
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