1. A radio signal moves from air to glass. The angle of incidence is 200. Calculate the angle of refraction. The relative permittivity of glass is 7.8.
Q: 1 Correct the following sentences LE T,F 1. Frequency is directly related to wavelength. 2.…
A: Here are the few questions which demands the basic understanding of electromagnetic radiation and…
Q: Calculate the maximum directivity of an antenna with a radiation intensity U = M sin 0.
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Q: Determine the height of an antenna that must be able to reach antennas at 1.5 m height up to 80 km…
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Q: A radio wave is propagating at a frequency of 0.5MHZ in a medium (o = 3*10' S/m , Er = Ur =1).The…
A: Given f = 0.5 M Hz. ur = €r = 1 Conductivity = 3× 10^7 S/m For this question first of all we…
Q: A transmitted signal 5 meters in wavelength is received by an antenna coil 0.01 H inductance. What…
A: Given: For a transmitted signal, wavelength λ=5 m, inductance of antenna coil L=0.01 H.
Q: 5. Find the frequency of a radio wave whose wavelength is (a) 600m, (b) 2000 m, (c) 3000 m, and (d)…
A: This question belongs to electronics communication . It is based on the concept of relation between…
Q: An antenna radiates in free space and 12 sin e - cos(27 X 10°t – Br)ag mA/m H = Find the…
A: Given: An antenna radiates in free space and H=12sinθrcos2π×108t-βraθ mA/m To find: The…
Q: the maximum dimension of an antenna is 0.15 m and the frequency is 1 GHz the .. distance 0.5 m…
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Q: 3. Determine the maximum usable frequency for a critical frequency of 10 MHz and an angle of…
A: The maximum usable frequency can be defined as =Critical frequency/ cos ( angle of incidence)…
Q: Calculate the value of frequency at which an electromagnetic wave must propagate through the…
A: Given that, μ=0.2 Electron density N=4.28*105 Electrons/m3 As, μ=(1 - 81.45N) /f2 ]1/2 0.2=(1 -…
Q: A laser beam with A0 = 550 nm is striking the surface of a pond at an angle of 50°. The pond water…
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Q: Calculate the maximum directivity of an antenna with a radiation intensity U=M•sin0
A:
Q: Given the radiation intensity, sin 0 sin 0< 0 < T; 0<¢< A U (0, 6) = 0<0 < T; T <$ < 2m Find the…
A: Evaluating the radiating power using the given radiation intensity:
Q: The Electromagnetic radiation spectrum includes the region: OX-ray Microwave. Gamma ray radiowaves.…
A: Electromagnetic radiation spectrum
Q: Calculate the maximum directivity of an antenna with a radiation intensity U = M• sin 0. (Answer.…
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Q: Find out the field strength at 30 km away from a transmitting antenna of 625 kW power.
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Q: Problems: 1. Find the angle of refraction: (a) when a ray of light is travelling from air to glass…
A: when a ray of light enter from low dense medium to highly dense medium (Air to glass) or it enter…
Q: A point source broadcasts sound into a uniform medium. If the distance from the source is tripled,…
A:
Q: Radiated power by an antenna is proportional to the square of wavelength Select one: O True O False
A: Power radiations can be increased by using frequency of high power.
Q: 3.1 A dielectric material has propagation constant y = | for an electromagnetic wave having…
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Q: A paraboloid reflector antenna with diameter 20 meters is designed to operate at frequency of 6 GHZ…
A: Given data: The diameter of the parabolic reflector D=20 m Frequency of the operation f=6 GHz The…
Q: An annular antenna with a range of 100 operates at a frequency of 2.2m wavelength, so its radiation…
A: Given data, Frequency is 100 Wavelength, λ=2.2 m
Q: Q2) __ of an antenna is a measure of how the antenna concentrates its radiated power in a given…
A: Antenna
Q: 1. Calculate the wavelength of a signal, if the speed of wave equals to 700 m/s and 111 000 000…
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Q: Solve the following, if the radio wave transmitted at an angle of incidence 60 critical electron…
A: Given information: i). Determining the frequency of the wave,
Q: The height of a transmitting antenna is 30 m and the operating wavelength is 450 m. Determine the…
A: Using formula first we have to calculate radiation resistance then with the help of that we have to…
Q: 3. The antenna used for sky wave propagation is elevated at an angle of 30 degrees. Find the MUF if…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: What is the wavelength of the electromagnetic wave emitted by the oscillator- antenna system of an…
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Q: The maximum peaks of an EM Wave is separated by 3m. Find the following i. Frequency of the signal…
A: Given: Brief description: An electromagnetic wave is defined as a wave in which electric field…
Q: 1- Calculate the maximum directivity of an antenna with a radiation ntensity U=M•sine. (Answer: Dmax…
A: Note According to the company guidelines we can answer first question please repost the another one…
Q: Satellite communication is an example of sky wave propagation. Select one: O True False
A: The space wave is a kind of radio wave engendering. These sorts of engendering are utilized for…
Q: Radiated power by an antenna is inversely proportional to the square of wavelength Select one: O…
A: Solution: If we use high frequency signal in antenna then power radiated will be increased.
Q: An antenna which radiates in all directions equally with spherical radiation pattern Select one:…
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Q: If the Radiation Intensity of an isotropic antenna is given: U (0, $) = 5 W/sr, the total radiated…
A: Given, Radiation Intensity of an isotropic antenna is Uθ,ϕ=5 Wsr
Q: A certain antenna with an efficiency of 95% has maximum radiation intensity of 0.5 W/sr. Calculate…
A: In Antenna Array the group of radiating element produce radiation in one direction. . Its radiation…
Q: A shortwave transmitter uses skywave propagation. What is the angle of incidence if the MUF is 25…
A: Given: For a shortwave transmitter using skywave propagation
Q: What is the wavelength of light waves if their frequency is 5.0X1014 Hz?
A: Given data Frequency of the light wave v = 5.0*1014 Hz Wave length * frequency = speed of light
Q: If the FNBW of a parabolic reflector antenna is 15o at 1.5 GHz then estimate the diameter of the…
A: For a parabolic reflector type antenna, the expression of First Null Beamwidth (FNBW) in degree can…
Q: An infinitesimal linear wire, where L is much smaller compared to the wavelength of the antennais…
A: The length of Hertz & Marconi antenna is smaller compared to the wavelength of antennas. length…
Q: What will be directivity of a transmitting antenna having an effective aperture of 72 m2 and…
A: Directivity of an antenna is a very fundamental antenna parameter. Using this, one can determine how…
Q: At a certain time, the maximum usable frequency (MUF) for transmission at an angle of incidence of…
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Q: The dircitivity of an isotrpic antennas is equal to 10 a. FALSE b. TRUE
A: In this question we need to verify the given statement is true or false
Q: A weather radar has a frequency of 3.0 GHz. The antenna has a diameter of 8.53 m. The power output…
A: We know direct formula for beam width of radar .
Q: Calculate the wavelength for a 4 GHz frequency. Select your answer. 0.75 µm 0.75 m 75 m 75 mm
A: In this question, We need to choose the correct options What is wavelength if frequency f=4Ghz
Q: At a distance of 100 m, the maximum radiated power is measured to be 160 mw/m2. If the antenna is…
A: The maximum radiated power density of the antenna is given. The maximum radiated power is calculated…
Q: A parabolic disk provides a gain of 75 dB at a frequency of 15 GHz. Calculate the first bull beam…
A: Write the mathematical expression for the first null beamwidth of an antenna is:-
Q: Find out the frequency of an electromagnetic wave of the wavelength in free space is 1.55 cm
A: For an electromagnetic wave, the wavelength and the frequency are related by the following relation:…
Q: 2) Given the following geometry, determine a) the loss due to knife edge diffraction and b) the…
A: The given diagram is shown below:
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- A certain antenna has a gain of 7 dB with respect to an isotropic radiator. What is its effective area (in m^2) if it operates at 200 MHz? Round off your answer into two decimal places.A parabolic reflector antenna has a diameter of 2.7 m. The antenna operates at 700 MHz. Calculate the directivity of the antenna?An antenna has a loss resistance of 25 ohms, power gain of 30 and directivity of 42. Calculate the radiation resistance of the antenna.
- The total power delivered to the radiator of an isotropic antenna is 200,000 W. Determine the power density at a distance of 100 m.An antenna is transmitting a wavelength of 0.06 m. If the directivity of the antenna is 40, then what will be the effective aperture of the antenna?A parabolic disk provides a gain of 75 dB at a frequency of 15 GHz. Calculate the effective aperture of the antenna.
- At a distance of 100 m, the maximum radiated power is measured to be 160 mw/m2. If the antenna is radiating 120 W of power, then calculate the antenna gain in dB.What will be the maximum effective aperture or an antenna which is operating at a wavelength of 2 m and has a directivity of 100.The effective area of a parabolic dish antenna is approximately equal to its physical aperture. If the directivity of a dish antenna is 10 dB at 1 GHz, what is its effective area? a)0.072 m2 B)0.72 m2 c)0.0072 m2 d)0.72 cm2
- Microwave antenna has a wavelength of 22 meters and a directivity 35.Then the maximum effective aperture of the antenna assuming that the directivity is reduced by 50% .The maximum deviation of an FM channel allowed is 15.0 kHz at frequencies up to 3.6001 kHz. Using Carson’s rule, determine the bandwidth of the FM channel. Round the final answer to two decimal places. kHzDesign parabolic reflector antenna operates on frequency of 12GHz and has gain of 20dbi for satellite TV, and calculate diameter, depth, and focal length.