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

Updated: Jan 31



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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