Question

The distance between directors of Yagi-Uda antenna is ____

(a) 0.2λ

(b) 0.49λ

(c) 0.52λ

(d) 0.62λ

This question was addressed to me at a job interview.

I'd like to ask this question from Construction of Yagi in portion Folded Dipole & Yagi – Uda Antenna of Antennas

Answer 1

The correct choice is (a) 0.2λ

To elaborate: The distance between directors of Yagi-Uda antenna is 0.2λ. The directors will increase the gain.