Engineering Electromagnetics
9th Edition
ISBN: 9781260029963
Author: Hayt
Publisher: MCG
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Chapter 13, Problem 13.12P
To determine
The maximum plate separation d.
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In an air-filled rectangular waveguide, the cutofffrequency of a TE10 mode is 5 GHz, whereas that ofTE01 mode is 12 GHz. Calculate(a) The dimensions of the guide.(b) The cutoff frequencies of the next threehigher TE modes.(c) The cutoff frequency for TE11 mode if theguide is filled with a lossless material havingr = 2.25 and r = 1.
AGILA satellite is located 36000 km above the earth’s surface. Assuming free space condition, what is the path loss in dB of the signal if the operating frequency is 3 GHz.
Determine the isotropic free space loss at 8 GHz for the shortest path to a geostationary satellite from Earth (36000 km)
Chapter 13 Solutions
Engineering Electromagnetics
Ch. 13 - The conductors of a coaxial transmission line are...Ch. 13 - Prob. 13.2PCh. 13 - Prob. 13.3PCh. 13 - Find R, L, C, and G for a two-wire transmission...Ch. 13 - Prob. 13.5PCh. 13 - Consider an air-filled coaxial transmission line...Ch. 13 - Pertinent dimensions for the transmission line...Ch. 13 - A transmission line constructed from perfect...Ch. 13 - Prob. 13.9PCh. 13 - Two microstrip lines are fabricated end-to-end on...
Ch. 13 - Prob. 13.11PCh. 13 - Prob. 13.12PCh. 13 - Prob. 13.13PCh. 13 - Prob. 13.14PCh. 13 - For the guide of Problem 13.14, and at the 32 GHz...Ch. 13 - Prob. 13.16PCh. 13 - A parallel-plate guide is partially filled with...Ch. 13 - Prob. 13.18PCh. 13 - Prob. 13.19PCh. 13 - Two rectangular waveguides are joined end-to-end....Ch. 13 - Prob. 13.21PCh. 13 - Consider the TE11 mode in a rectangular guide...Ch. 13 - Prob. 13.23PCh. 13 - Prob. 13.24PCh. 13 - Prob. 13.25PCh. 13 - Prob. 13.26PCh. 13 - Prob. 13.27PCh. 13 - Prob. 13.28PCh. 13 - An asymmetric slab waveguide is shown in Figure...Ch. 13 - A step index optical fiber is known to be single...Ch. 13 - Prob. 13.31PCh. 13 - Prob. 13.32P
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- Since the dielectric constant of the material filling the rectangular waveguide with a ratio of a > 2b between its dimensions is 9; For the dominant mode to propagate at 5 GHz, the wide dimension of the grid must be ......cm<a<......cm?arrow_forwardA microwave link includes two sites that are 10 km apart and uses a center frequency of 9 GHz. On either transmitter or receiver side, a 100-m transmission line that has an attenuation per unit length of 0.01 dB/m is connected to an amplifier and a parabolic reflector antenna. Other losses caused by connectors and insertions incurred on one side amounts to 3 dB. Antenna has a power gain of 20 dB. If the output of the transmitter amplifier is 30 dBm, what is the received signal level (in dBm) at the input of the receiver amplifier?arrow_forwardAGILA satellite is located 36000 km above the earth’s surface. Assuming free space condition, what is the path loss in dB of the signal if the operating frequency is 3 GHz. (Use two decimal places for the final answer)arrow_forward
- How large dish diameter is needed for 80 dB gain at 300 MHz?arrow_forwardAn attenuator can be made using a section of waveguide operating below cutoff, as shown in theaccompanying figure. If a = 2.286 cm and the operating frequency is 12 GHz, determine the requiredlength of the below-cutoff section of waveguide to achieve an attenuation of 100 dB between the inputand output guides. Ignore the effect of reflections at the step discontinuities.arrow_forwardA 37.4W transmitter at 86.7 MHz will be used to establish VHF communication. Determine the maximum distance at which LOS communication is possible if the transmitting and receiving antennas are 51.2 and 24.68 meters tall, respectively. Determine the receiving point's field strength. Earth's radius is 6353 kilometres.arrow_forward
- Design a Dolph-Tschebyscheff broadside array of 8 elements, 25-dB sidelobe level, and with a spacing of λ/2 between the elements to operate at 3 GHz. Choose a “rectangular patch” or a "dipole" antenna as the array element that operates at 3 GHz. For the final antenna design, determine the: • Half-power beamwidth (in degrees). How much narrower or wider (in degrees) is thishalf-power beamwidth compared to that of a uniform array of the same number ofelements and spacing?• How much smaller or larger (in dB) is the gain (in dB) compared to that of a uniformarray of the same number of elements and spacing? Justify you answer. Do you expectit? Why?arrow_forwardWhat should be the relative dielectric constant of the dielectric material between the plates so that the propagation speed is 1x10^8 m/s in a 50 ohm parallel plate transmission line to be used at 3 GHz?arrow_forwardA waveguide suitable for propagation of the TE10 mode at 3 GHz has cross-sectional dimensions of 2.5 cm x 1 cm and is filled with a dielectric constant of unknown relative dielectric constant. For only the dominant mode to be transmitted, the relative dielectric constant must be ........<εr<.....?arrow_forward
- a) A parallel plate transmission line has plate separation d=1 cm, and isfilled with teflon having dielectric constant ε’r=2. Determine themaximum operating frequency such that only TEM mode willpropagate. Also find the range of frequencies over which TE1 andTM1 modes will propagate and no higher order modes. b) In the parallel plate waveguide of part -a, the operating wavelength isλ=2mm. How many waveguide modes will propagate?arrow_forwardWhat is the free space path loss in dB over 80 meters at the 2.4 GHz band?arrow_forward7. What is the gain of a Deep Space Network (DSN) 70m antenna at 9 GHz (efficiency of .65)?arrow_forward
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