Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 10, Problem 10.38P
Repeat Problem 10.37, with,
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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
Use the free space model and the following equation to compute the received power in dBm for a 900 MHz signal travelling to a receiver 200 meters away. Assume the transmitter antenna gain is 10 dB and the receiver antenna gain is 3 dB. Assume the power at the transmitter is 22 dBm.
(Note: Pr dBm is the received power in dBm, Pt dBm is the transmitted power in dBm, PL dB is the free space path loss in dB, Gt dB and Gr dB are the antennas gains at the transmitter and receiver, expressed in dB, respectively)
state the answer in the correct units and show all your computations to receive credit
Solve the problem. PROVIDE THE GIVEN, REQUIRED, EQUATION, SOLUTION, AND FINAL ANSWER
WAO’s frequency is 85.2 MHz. What does this mean, and what period does this correspond to?
Chapter 10 Solutions
Engineering Electromagnetics
Ch. 10 - The parameters of a certain transmission line...Ch. 10 - A sinusoidal wave on a transmission line is...Ch. 10 - Prob. 10.3PCh. 10 - A sinusoidal voltage V0, frequency , and phase...Ch. 10 - Two voltage waves of equal amplitude V0 and radian...Ch. 10 - A 50 load is attached to a 50-m section of the...Ch. 10 - Prob. 10.7PCh. 10 - An absolute measure of power is the dBm scale, in...Ch. 10 - A 100-m transmission line is used to propagate a...Ch. 10 - Two lossless transmission lines having different...
Ch. 10 - Two voltage waves of equal amplitude V0, which...Ch. 10 - In a circuit in which a sinusoidal voltage source...Ch. 10 - The skin effect mechanism in transmission lines is...Ch. 10 - A lossless transmission line having characteristic...Ch. 10 - Figure 10.29 See Problem 10.15. For the...Ch. 10 - A 100 lossless transmission line is connected to a...Ch. 10 - Determine the average power absorbed by each...Ch. 10 - The line shown in Figure 10.31 is lossless. Find s...Ch. 10 - A lossless transmission line is 50 cm in length...Ch. 10 - (a) Determine s on the transmission line of Figure...Ch. 10 - Prob. 10.21PCh. 10 - Prob. 10.22PCh. 10 - The normalized load on a lossless transmission...Ch. 10 - Prob. 10.24PCh. 10 - Prob. 10.25PCh. 10 - A 75 lossless line is of length 1.2 . It is...Ch. 10 - Prob. 10.27PCh. 10 - The wavelength on a certain lossless line is 10...Ch. 10 - Prob. 10.29PCh. 10 - A two-wire line constructed of lossless wire of...Ch. 10 - In order to compare the relative sharpness of the...Ch. 10 - In Figure 10.17, let ZL=250 and Z0=50. Find the...Ch. 10 - In Figure 10.17, let ZL=100+j150 and Z0=100. Find...Ch. 10 - The lossless line shown in Figure 10.35 is...Ch. 10 - Prob. 10.35PCh. 10 - The two-wire lines shown in Figure 10.36 are all...Ch. 10 - Prob. 10.37PCh. 10 - Repeat Problem 10.37, with, Z0=50 and RL=Rg=25....Ch. 10 - In the transmission line of Figure 10.20, Z0=50,...Ch. 10 - In the charged line of Figure 10.25, the...Ch. 10 - In the transmission line of Figure 10.37, the...Ch. 10 - Figure 10.38 See Problem 10.42. A simple frozen...Ch. 10 - Figure 10.39 See Problem 10.43. In Figure 10.39,...
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- A satellite transmitter operates at 4 GHz with an antenna gain of 40 dBi. The receiver 40,000 km away has a gain of 50 dBi. If the transmitter has a power 8 W, ignoring feedline losses and mismatch, find (a) the EIRP in dBW (b) the free space path loss, (c) the power delivered to the receiver in W and dBmarrow_forwardA 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.arrow_forwardA transmitter supplied by 100W power is used with an antenna having a gain of 5dBi. *Calculate the EIRP in dBm*Calculate the power density (µW/m^2) at distance of 10km.arrow_forward
- Suppose Rc=10 k, Rb=1k, Vcc=4V, Vi =5V, and β= 200. Find Vbe, Vce, Ic, and the region of operation.arrow_forwardA rectangular waveguide is used to transmit power from a generator to a radar antenna. The guide has internal dimensions of 0.864 cm and 0.432 cm and operates at 23 GHz in TE10 mode. The transmitted power is 50 kW. Determine the magnitudes of the electric and magnetic field strengths in the guide. NEED A NEAT HAND WRITTEN SOLUTION , NO CHAT GPTarrow_forwardA transmission line with a characteristic impedance of 100 Ohm is used tomatch a 50 ohm section to a 200ohm section. If the matching is to be doneat 429 MHz and I GHz. The length of the transmission line can beapproximately.arrow_forward
- A wireless communication system has a trasmit power Pt = 10 mW. Through extensive measurements, the path gain of the system at the reference distance is determined to be -32 dB, and the path loss exponent to be 3.8. Using the simplified path loss model, find the received power in mW at distance 200 meters from the transmitterarrow_forwardThe carrier c(t) = 100 cos(2πft) is frequency modulated (FM) by the message signal m(t) = 5 cos( 20000πt), where f.= 100MHz. The peak-frequency deviation is 20 kHz. The modulated signal is a wide-band FM.1. Determine the amplitude and frequency of all signal components that have a power level of at least 10% of the power of the unmodulated carrier component.2. From Carson's rule, determine the approximate bandwidth of the FM signal.arrow_forwardA satellite at an altitude of 37654 km transmits a signal of 17 GHz to a ground station directly below it. The following data is given. • Total atmospheric losses = 40dB • Transmit antenna gain = 55dBi • Receiver antenna gain = 60dBi • Signal to noise ratio of received signal = 6dB • Receiver signal noise power = 25pW • Receiver sensitivity = -90dBW I. Calculate the power transmitted. II. Find the Fade Margin for the link and comment on your result.arrow_forward
- Consider a receiving antenna with a ground value of 20 dB and an equivalent noise temperature of 12dBK, the G/T factor will be: Select one: A. The value is 32dB/K b. The value is 8dB/K c. None of the results is correct d The value is -8db/Karrow_forwardUse the free space model to compute the free space path loss for a 900 MHz signal over a distance of 200 meters. Express your answer in dB. state the answer in the correct units and show all your computations to receive creditarrow_forwardDetermine the Norton equivalent of the circuit in Fig. 10.30 as seen fromterminals a‑b. Use the equivalent to find Io ?arrow_forward
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How does an Antenna work? | ICT #4; Author: Lesics;https://www.youtube.com/watch?v=ZaXm6wau-jc;License: Standard Youtube License