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1/1 Current Balun with 10 turns on Wurth core 74270191

Updated: Jan 31, 2021

On both sides, i placed 10 turns teflon wire.

Insertion loss:

Worst case = 0.09 dB @ 30 MHz. This means a power loss of 2 %.

Return loss:

Common mode rejection:

I injected a common mode current into the device.

Each resistor = 22 Ohms>

Insertion loss of the setup After recalibrating:

Measuring setup:

The result:

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