Question

In unequal conductor folded dipole, the diameter of the conductor of feed arm and the non feed arm are unequal.

(a) True

(b) False

Answer 1

The correct answer is (a) True

The explanation: In unequal conductor folded dipole, the diameters of the two conductors connecting together are unequal. If the radii of two conductors are r1 (feed arm), r2 (non feed arm) and separated by a distance, then the impedance transformation for folded dipole is given by

\(Z = Z’\left(1+\frac{log⁡(\frac{a}{r1})}{log⁡(\frac{a}{r2})} \right)^2.\)