Signal attenuation caused by magnetic ring (magnetic ring is added to pass EMC)

QWE4562009

Signal attenuation caused by magnetic ring (magnetic ring is added to pass EMC) [Copy link]

Signal attenuation caused by magnetic ring (magnetic ring is added to pass EMC)

The aviation cable outputs a 56V/1.7M/3.5W ultrasonic signal. If it passes through the magnetic ring, it will cause signal attenuation or no signal output. What is the reason? The specifications of the magnetic ring are outer diameter 20mm, inner diameter 10mm, thickness 10mm; the impedance of the magnetic ring is 40Ω when the signal is 25M, and the impedance is 98Ω when the signal is 100M.

我自己123

I don't know why.

led2015

Maybe the material, structural parameters and installation method of the magnetic ring are not suitable for the signal in this specific frequency band.

QWE4562009

led2015 posted on 2023-6-7 20:55 Perhaps the material, structural parameters and installation method of the magnetic ring are not suitable for the signal of this specific frequency band

Do you have any better methods?