xtgabyJan 30, 20211 min read1/1 Current Balun with 10 turns on Wurth core 74270191Updated: Jan 31, 2021On 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:
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:
1:49 balun with FT400-43 material and the influence of the winding method on the measurement results.
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