Question

In: Electrical Engineering

1. A sinusoidal voltage wave on a transmission line has real amplitude, V_0. The wave is...

1. A sinusoidal voltage wave on a transmission line has real amplitude, V_0. The wave is expressed in phasor form as

V_s(z) = V_0*e^(-alpha*z)*e^(-j*(beta)*z)

a. In which direction does this wave propagate and why?

b. Express the given wave in real instantaneous form.

c. The parameters of the line, operating at ω= 6.0×10^8 rad/s are L = 0.350 μH/m, C = 40.0 pF/m, G = 0 and R = 15.0 Ω/m. Find α,β,λ, andZ_0 (in magnitude and phase).

d. Calculate the phase velocity of the wave, and find an expression for the time-average power in the line, as a function of distance, z , where V_0 = 13.7 V.

e. Find the distance from z = 0 over which the wave power is reduced by 10dB, and evaluate the power in mW at that location.

Solutions

Expert Solution


Related Solutions

5) Wave on transmission lines (a) Derive wave equations for voltage and currents over the transmission...
5) Wave on transmission lines (a) Derive wave equations for voltage and currents over the transmission lines. (b) Solve for general solutions (c) Indicate the definition of characteristic impedance
Suppose a sinusoidal wave on a string, having amplitude A and travelling in the −xˆ direction,...
Suppose a sinusoidal wave on a string, having amplitude A and travelling in the −xˆ direction, is partially reflected at the point x = 0, so that the reflected wave is in phase with the incident wave at x = 0 but has amplitude kA, where 0 ≤ k ≤ 1 is the reflection coefficient. a) Show that each point on the string undergoes simple harmonic motion and determine how the amplitude of the simple harmonic motion varies with x...
sinusoidal wave of angular frequency 1205 rad/s and amplitude 3.20 mm is sent along a cord...
sinusoidal wave of angular frequency 1205 rad/s and amplitude 3.20 mm is sent along a cord with linear density 2.10 g/m and tension 1233 N. (a) What is the average rate at which energy is transported by the wave to the opposite end of the cord? (b) If, simultaneously, an identical wave travels along an adjacent, identical cord, what is the total average rate at which energy is transported to the opposite ends of the two cords by the waves?...
1.A wave of amplitude 0.36 m interferes with a second wave of amplitude 0.21 m traveling...
1.A wave of amplitude 0.36 m interferes with a second wave of amplitude 0.21 m traveling in the same direction. (a) What is the largest resultant amplitude that can occur, and under what conditions will this maximum arise? ?m The two waves interfere destructively. The two waves interfere constructively.      (b) What is the smallest resultant amplitude that can occur, and under what conditions will this minimum arise? ?m The two waves interfere destructively.The two waves interfere constructively. 2.On a hot...
In the following graph of a sine wave, the Y-axis is voltage (Volts) and the X-axis is time seconds). What is the voltage amplitude?
In the following graph of a sine wave, the Y-axis is voltage (Volts) and the X-axis is time seconds). What is the voltage amplitude? What is the phase shift in seconds?What is the phase shift in degrees?What is the phase shift in radians?
Design a complete single-stage amplifier using transistor to amplifier a sine-wave voltage signal with an amplitude...
Design a complete single-stage amplifier using transistor to amplifier a sine-wave voltage signal with an amplitude of 2 mV, frequency range from 20-20kHz and internal resistance of 1k ohm. the output of the amplifier supplies to a load of 5k ohm and the required voltage amplitude around 300 mV.
Use the following information to answer parts a and b. Wave 1 has an amplitude of...
Use the following information to answer parts a and b. Wave 1 has an amplitude of 40.0 cm, and Wave 2 has an amplitude of 15.0 cm. a) If the two waves constructively interfere, what is the maximum possible amplitude of their combined wave? b) If the two waves were constructively interfering, but Wave 1 was shifted by 6π radians, would the change create constructive, destructive, or intermediate interference? Explain. c) If the two waves destructively interfere, what is the...
A sinusoidal electromagnetic wave of frequency 6.10
A sinusoidal electromagnetic wave of frequency 6.10
To understand the standard formula for a sinusoidal traveling wave. One formula for a wave with...
Learning Goal:To understand the standard formula for a sinusoidal traveling wave.One formula for a wave with a y displacement (e.g., of a string) traveling in the x direction isy(x,t)=Asin(kx−ωt).All the questions in this problem refer to this formula and to the wave it describes.1)What is the phase ϕ(x,t) of the wave?Express the phase in terms of one or more given variables ( A, k, x, t, and ω) and any needed constants like πϕ(x,t)=2)What is the wavelength λ of the wave?Express the wavelength in terms of one or more given variables ( A, k, x, t, and ω)...
A sinusoidal wave in a string is described by the wave function y = 0.155 sin...
A sinusoidal wave in a string is described by the wave function y = 0.155 sin (0.525x - 46.5t) where x and y are in meters and t is in seconds. The mass per length of the string is 13.2 g/m. (a) Find the maximum transverse acceleration of an element of this string. (b) Determine the maximum transverse force on a 1.00-cm segment of the string. (c) State how the force found in part (b) compares with the tension in...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT