Question

The return loss is given as 12 decibel. Calculate the reflection coefficient. (a) 0.35 (b) 0.55 (c) 0.25 (d) 0.75 The question was asked in an interview for internship. My enquiry is from Power, Power Loss and Return Loss in division EM Wave Propagation of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

Answer 1

Right choice is (c) 0.25 For explanation I would say: The return loss is given by RL = -20log R. The reflection coefficient can be calculated as R = 10^(-RL/20), by anti logarithm property. For the given return loss RL = 12, we get R = 10^(-12/20) = 0.25.