Question

A 75 Ω lossless transmission line is terminated into a load 100 +j150 Ω. For this line, find: i. Reflection coefficient; ii. An antenna receiving a signal of 500 MHz has the following specifications: input power Prad 3.25 kw; effective area of antenna Aeff 3.5 m2; total efficiency of antenna,-42%; radiation efficiency of antenna ecd-65%; tilt angle of the received signal ψ = 35°. Determine Voltage standing voltage ratio; b. i. Gain of the antenna (in dB) ii. Maximum radiation intensity of the antenna (in dB) ii. If the power radiated from the antenna is doubled, discuss how it( affects the directivity of the antenna using necessary equations.

Answer 1

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