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As per theory, if the turns ratio is the square root of the higher impedance divided by the lower impedance;
Example 300/75 = 4
The square root of 4 is 2
Therefore, two turns of wire should go through the ferrite bead to make a 300 to 75 ohm Balun.
But if we use 7 turns then why performance is better than 2 turns which is 4 times impedance from 75ohm to 300ohm .
Then , as per calculation 75 x square of no. of turns = 75 x 49= approx. 3750 ohm
But Yagi antenna are 300ohm type .
Pl. explain
Example 300/75 = 4
The square root of 4 is 2
Therefore, two turns of wire should go through the ferrite bead to make a 300 to 75 ohm Balun.
But if we use 7 turns then why performance is better than 2 turns which is 4 times impedance from 75ohm to 300ohm .
Then , as per calculation 75 x square of no. of turns = 75 x 49= approx. 3750 ohm
But Yagi antenna are 300ohm type .
Pl. explain
