NETW310 Module 5 PPT - v2

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DeVry University, New Jersey *

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310

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Electrical Engineering

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Feb 20, 2024

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pptx

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NETW310 Course Project Thurman Bridgers Module 5 Antenna Gain and Free Space Path Loss
Rubric Activity Requirement(s) Points Antenna Gain Answer five questions 22 Free Space Path Loss Answer nine questions 38
1. What is the maximum theoretical antenna gain of a common dish antenna at the 2.4 GHz band? [4 points] Answer: 22.379 2. What is the maximum theoretical antenna gain of a common dish antenna at the 5 GHz band? [4 points] Answer: 29.079 3. Given the same sized reflector, which signals, high-frequency, or low-frequency, can be more efficiently focused by a common dish antenna (i.e., result in a higher antenna gain)? [ 5 points ] Answer: Higher Frequency signals can be more efficiently focused by a common dish antenna. 4. What is the maximum theoretical antenna gain of the dish antenna used in the VLA radio telescopes in New Mexico at the 5 GHz band? [4 points] Answer: 63.059 5. Given the same signal frequency, which dish antennas, large-sized or small-sized, are more efficient at focusing the signal (i.e., result in a higher antenna gain)? [ 5 points ] Answer: Given the same frequency, large sized dish antennas are more efficient at focusing the signal. Antenna Gain
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1. What is the free space path loss in dB at the 2.4 GHz band? [4 points] Answer: -80.4 db 2. What is the free space path loss in dB at the 5 GHz band? [4 points] Answer: -87.2 db 3. How does the free space path loss at a higher frequency (e.g., the 5 GHz band) compare with that at a lower frequency (e.g., the 2.4 GHz band)? [ 5 points ] Answer: Higher frequency signals undergo greater path loss compared to lower frequency signals. 4. What is the free space path loss in dB over 20 meters at the 2.4 GHz band? [4 points] Answer: -66.421 dB 5. What is the free space path loss in dB over 40 meters at the 2.4 GHz band? [4 points] Answer: -72.441 db 6. What is the free space path loss in dB over 80 meters at the 2.4 GHz band? [4 points] Answer: -78.462 db 7. When the distance doubles, how does free space path loss in dB change approximately? [ 5 points ] Answer: When the distance doubles , the free space path loss increases approximately by 6 dB. Free Space Path Loss
8. Use a scientific calculator to calculate Delta for D1 = 20 meters and D2 = 40 meters. [4 points] Delta = 0.5 9. Is your calculation approximately the same as the result from Part 1 Step 2? [4 points] Answer: YES Free Space Path Loss Cont.
1. https://help.ui.com/hc/en-us/articles/115007689527-Intro-to-Networking-Free-Sp ace-Path-Loss-FSPL#:~:text=While%20true%20of%20all%20radio,for%20ultra%2Dl ong%20distance%20links . 2. https://semfionetworks.com/blog/free-space-path-loss-diagrams/ 3. http://www.swisswireless.org/wlan_calc_en.html References
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