I'm not that familiar with high-speed boards designing. Here I want to route the PCB in a part of which I've used a LAN8720A as the PHY of the ethernet system. According to what I've read about ethernet, the single-ended impedance should be 50 Ω. I've designed my Layer Stack Manager in Altium Designer as below:

To be honest, the results surprised me because the suggested trace width is about 120 mil, which does not seem to be normal. Did I make some mistakes in settings? Or is the 2-layer FR4 material not appropriate?

I saw this question which has the schematic below, using 10 Ω resistors for series termination.

Are these resistors for impedance matching ? Could I use something like that?

I'm not that familiar with high-speed boards designing. Here I want to route the PCB in a part of which I've used a LAN8720A as the PHY of the ethernet system. According to what I've read about ethernet, the single-ended impedance should be 50 Ω. I've designed my Layer Stack Manager in Altium Designer as below:

To be honest, the results surprised me because the suggested trace width is about 120 mil, which does not seem to be normal. Did I make some mistakes in settings? Or is the 2-layer FR4 material not appropriate?

I saw this question which has the schematic below, using 10 Ω resistors for series termination.

Are these resistors for impedance matching ? Could I use something like that?

I'm not that much familiar with high speed boards designing. here I want to route the PCB which in a part of that I've used LAN8720A as the PHY of the ethernet system. as I've read about the ethernet, the single ended impedance should be 50 Ω. I've designed my Layer Stack Manager in Altium Designer as below:

To be honest the results surprised me cause the suggested trace width is about 120 mil, which is not seem to be normal. Do I make some mistakes in settings? Or the 2 layer FR4 material is not appropriate?

I saw this question which have the schematic below, using series termination 10 Ω resistors.

Are these resistors for impedance matching goal? May I use something like this?

I'm not that familiar with high-speed boards designing. Here I want to route the PCB in a part of which I've used a LAN8720A as the PHY of the ethernet system. According to what I've read about ethernet, the single-ended impedance should be 50 Ω. I've designed my Layer Stack Manager in Altium Designer as below:

To be honest, the results surprised me because the suggested trace width is about 120 mil, which does not seem to be normal. Did I make some mistakes in settings? Or is the 2-layer FR4 material not appropriate?

I saw this question which has the schematic below, using 10 Ω resistors for series termination.

Are these resistors for impedance matching ? Could I use something like that?

I'm not that much familiar with high speed boards designing. here I want to route the PCB which in a part of that I've used LAN8720A as the PHY of the ethernet system. as I've read about the ethernet, the single ended impedance should be 50 Ω. I've designed my Layer Stack Manager in Altium Designer as below:

To be honest the results surprised me cause the suggested trace width is about 120 mil, which is not seem to be normal. Do I make some mistakes in settings? Or the 2 layer FR4 material is not appropriate?

I saw this question which have the schematic below, using series termination 10ohm resistors

are these resistors for impedance matching goal? may I use something like this?

I'm not that much familiar with high speed boards designing. here I want to route the PCB which in a part of that I've used LAN8720A as the PHY of the ethernet system. as I've read about the ethernet, the single ended impedance should be 50 Ω. I've designed my Layer Stack Manager in Altium Designer as below:

To be honest the results surprised me cause the suggested trace width is about 120 mil, which is not seem to be normal. Do I make some mistakes in settings? Or the 2 layer FR4 material is not appropriate?

I saw this question which have the schematic below, using series termination 10 Ω resistors.

Are these resistors for impedance matching goal? May I use something like this?