Chapter 5, Problem 5.9MCQ

The voltage wave propagating on a transmission line is given in real space-time form as v(z, t) = 10cos(4m*10^8 t +1.6 pi *z) + 6cos(4 m *10^8 t +1.6 pi *z). the voltage expression in phasor

A system has the following characteristic equation: s + s + 3 + 2s + 2 = 0 Using the Routh-Hurwitz method, check

Determine the system function H(z), plot the zeros and poles of H(z) in the z-plane and obtain an expression for H(ejw), the frequency response of the system.

The parameters of a certain transmission line operating at ω = 6×108 rad/s are L = 0.35μH/m, C = 40 pF/m, G = 75 μS/m, and R = 17 Ω/m. Find α, β, λ, and Z0.

A cellular radio transmitter has a power output of 3 W at 800 MHz. It uses an antenna with a gain of 3 dBi. The receiver is 5 km away, with antenna gain of 12 dBi. Ignoring feedline losses and mismatch, calculate (a) the EIRP in dBW  (b) the free space path loss,    (c) the power delivered to the receiver in W and dBm

An optical fiber link with a distance of 30km long has a loss of 0.3dB/km. a) Calculate the minimum optical power level that must be launched into the fiber to maintain an optical power level of 3.0W at the receiving end.b) Estimate the required input power if the fiber has a loss of 0.6dB/km.c) Differentiate, with the aid of diagrams, the types of these dispersions and its effect on the transmission distance. (i) Modal Dispersion(ii) Chromatic Dispersion(iii) Polarization Mode Dispersion

2. If D = 10 ρ2 sin2φ ap + 8 ρ2 cos2φ aφ C/m2 for the region 2 < ρ < 4, 2 rad < φ < 4 rad, 1 < z < 2. a.) evaluate the left side of Divergence Theoremb.) evaluate the right side of Divergence Theorem

If D = 2ρ Cos (Φ) aΦ  C/m2 find the divergence of D at Q(10, -53.130, -1). \

A transmitter supplied by 100W power is used with an antenna having a gain of 5dBi.  a) Calculate the EIRP in dBm B) Calculate the power density (µW/m^2) at distance of 10km.