Nora
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Hello-
I'm using a few different microstrip calculators, but when I draw my trace, the suggested width (2.9mm) seems huge.
Calculator here: https://ncalculators.com/electronics/microstrip-impedance-calculator.htm
The transmission line needs to be 50 ohms as it connects directly with a 50 ohm matched impedance IC, of which the leads are around 0.4mm
I'm using FR4 and this is a 2-layer board
dielectric constant er is 4.5
strip thickness is 1 oz copper, 0.035mm
dielectric height is a standard 2 layer board, it is 1.6mm
I need a Z0 of 50 ohms
What am I doing wrong?
I was also told that 50 ohm transmission lines on 2 layer boards would need to be much thicker than the same 50 ohm t-line on 4 layer boards. Can anyone confirm this?
Thank you,
Nora
I'm using a few different microstrip calculators, but when I draw my trace, the suggested width (2.9mm) seems huge.
Calculator here: https://ncalculators.com/electronics/microstrip-impedance-calculator.htm
The transmission line needs to be 50 ohms as it connects directly with a 50 ohm matched impedance IC, of which the leads are around 0.4mm
I'm using FR4 and this is a 2-layer board
dielectric constant er is 4.5
strip thickness is 1 oz copper, 0.035mm
dielectric height is a standard 2 layer board, it is 1.6mm
I need a Z0 of 50 ohms
What am I doing wrong?
I was also told that 50 ohm transmission lines on 2 layer boards would need to be much thicker than the same 50 ohm t-line on 4 layer boards. Can anyone confirm this?
Thank you,
Nora