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For a 4: 1 Balun, what is the unbalanced impedance if the balanced impedance is 2KΩ?(a) 8K(b) 0.5K(c) 4K(d) 2KThis question was addressed to me during a job interview.I'd like to ask this question from Baluns topic in chapter Radiation, Baluns & Polarization of Antennas

Answer» RIGHT option is (b) 0.5K

To explain: A 4: 1 Balun implies its impedance ratio. \(\frac{Z_{bal}}{Z_{unbal}} = \frac{4}{1} \)

Unbalanced impedance = 2K/4=0.5K.


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