question of transformer used in dipole

[zhangm79]

1:4 Unbalanced to Balanced transformer used in dipole, what is the meaning of 1:4? Does the impedance ratio mean that of input impedance of dipole or the impedance of each arm of dipole to 50 ohms? Thanks.:|

 

[pakitos]

an increase in impedance 4 times.
if the dipole is 50 ohm then the imp after the transformer is 160 ohm

 

[vfone]

4 times 50 = 160 ! Well done, good answer!

 

[zhangm79]

Thanks.