Determine the height of an antenna that must be able to reach antennas at 1.5 m height up to 80 km away.

Q: If the directivity of an antenna is 25 dB at 2.5 GHz, then what will be the effective aperture of…

A: The given values of directivity and frequency are:

Q: if the maximum dimension of an antenna is 0.15 m and the frequency is 1GHZ the distance 2 m…

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Q: 2. At a certain time, the MUF for transmissions at an angle of incidence of 750 is 17 MHz. what the…

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Q: Calculate the beamwidth between first null of a 5 m paraboloid reflector used at 10 GHz. What will…

A: Given data: Frequency f=10 GHz The diameter of the paraboloid reflector D=5 m From the frequency,…

Q: Example: Design a log-periodic dipole antenna to cover all the VHF TV channels (starting with 54 MHz…

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Q: Estimate the wavelength range of the Ku frequency band

A: The Ku band is a portion of the electromagnetic spectrum. The term Ku was coined during the COLD…

Q: For the following wavelengths, determine the frequency (assuming free space), the ITU frequency…

A: Given (a) 33 m, (b) 3 cm

Q: In a communication link, both the transmitting and the receiving antenna are having a gain of 40 dB.…

A: Given

Q: An antenna has a gain that is 13 times better than an isotropic antenna. Calculate the gain of this…

A: Antenna Gain (G): It is defined as the ratio of transmit/receive power in a particular direction, to…

Q: (a) Describe isotropic, directional and omnidirectional antenna patterns.

A: Since you have asked a multipart question, and questions are interconnected. hence we will solve the…

Q: 2.107. A radar antenna, used for both transmitting and receiving, has a gain of 150 (dimensionless)…

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Q: A uniform phased array of 6 isotropic elements, placed at a distance 1/2 apart, is intended to…

A: Phase Difference: The difference between two phases are called Phase differences. The phase…

Q: For the following frequencies, determine the free-space wavelength, the ITU frequency band, and…

A: Given (a) 450 MHz, (b) 2 GHz

Q: Find the beam area of an antenna has a major lobe defined by the angles 0<0 <30 and 0< <60, compare…

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Q: What is the distance to the radio horizon for an antenna that is 40 m above the top of a 4000 m…

A: Given: Mountain height h1=4000 m Antenna height from mountain h2=40 m

Q: Calculate the number of elements, length of each element and spacing between the elements of log…

A: Given: The log periodic antenna has the following parameters: f1=70 MHzf2=320 MHzσ=0.132τ=0.762 To…

Q: An antenna has a gain that is 19 times better than an isotropic antenna. Calculate the gain of this…

A: Given information: The gain of the antenna under test is 19 time more than the gain of an isotropic…

Q: 1. An antenna is transmitting a power of 1.5kW with a directivity of 14 dB. At a distance of 40 km…

A: According to the question, we have to find the value of power density.

Q: A transmitter supplies 8 kW to the antenna when unmodulated. (a) What is the total power radiated…

A: Given: Unmodulated transmitter power is given as PC=8 kW Required: Total power radiated when…

Q: What is the wavelength of a microwave oven when it's radiating?

A: The solution is provided in the following section:

Q: Calculate the effective aperture of a short dipole antenna at a frequency of 1.2 GHz.

A: The effective aperture (Ae) of an antenna can be evaluated using the following equation:

Q: A car is driven at the speed of 90 km/h on the road, CALCULATE the received carrier frequency if the…

A: Whenever the source wave is moving the with respect to observer the doppler effect is considered.…

Q: The maximum radar cross section for a resonant half-wave length dipole is 0.85A2. the frequency is…

A: Given, Frequency, f=10 GHz Distance, R=1000 m Gain of the transmitter, Gt=20 dB Gain of the…

Q: A lossless resonant half-wavelength dipole antenna, with input impedance of 73 ohms, is connected to…

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Q: Find the wavelength of a carrier wave with a frequency of 100 MHz.

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Q: A radar antenna used for both transmitting and receiving has a gain of 200 at its operating…

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Q: A transmitter has a power output of 150 W at a carrier frequency of 32Mhz. It is connected to an…

A: Given: Pr=150 Wf=32 MHzGt(dB)=12 dBiR=10 kmGr(dB)=5 dBi Assume free space propagation.

Q: An antenna has a radiation resistance of 80 ohms, effective (ohmic) resistance of 10 ohms, directive…

A: As per company guidelines, we are supposed to answer the first 3 subparts of the question. Kindly…

Q: Calculate the power density 25 km away from a 90% efficient dipole if the transmit power is 125W.

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Q: q1) Consider a transmitter which radiates a sinusoidal carrier frequency of 2250 MHz. For a vehicle…

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Q: Design an air-filled circular waveguide such that only the dominant mode will propagate over a…

A: Waveguides- It is a linear structure that transmits electromagnetic waves. Losses occur at the…

Q: 4/ Calculate the minimum value of the transmitted power of a pulsed radar signal to detect a target…

A: It is given that: Cross-sectional area=σ=10 m2Distance=D=120 km=120×103 mFrequency=ν=35 GHz=35×109…

Q: Show that the directivity of isotropic antenna is 1.

A: Directivity is a very important antenna parameter and it is used to understand how efficiently an…

Q: A radar antenna used for both transmitting and receiving has a gain of 150 at its operating…

A: The received signal power is given by the expression as shown below: Pr=PtAe2σ4πλ2R4Pt=Transmitted…

Q: if 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: Consider a lossless antenna with a directive gain of +6 dB. If 1 mW of power is fed to it the total…

A: Solution Lossless antenna with directive gain of +6dB = 100.6 =4 (In linear) Input power to antenna…

Q: if the maximum dimension of an antenna is 0.15 m and the frequency is 1 GHz the distance 0.5 m…

A: Given values are - D=0.15mf=1GHz Given distance is 0.5(m).

Q: If 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: 6. If the distance between a transmitting station and receiving station is 1 Km and if the antennas…

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Q: If you check the voltage at one-half wavelength from the end of an RF transmission line, what…

A: RF transmission : RF(Radio Frequency) is defined as a frequency range with in which radio waves may…

Q: A lossless resonant half-wavelength dipole antenna, with input impedance of 73 ohms, is connected to…

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Q: Calculate the power gain of a horn antenna of square aperture with the aperture area of 100 times…

A: The power gain of a horn antenna can be expressed as In this problem, the aperture area is given as…

Q: An antenna transmits 24.5W and has a gain of 16.8dB. What is the power density at a distance of 323…

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Q: Plot the angular distribution of the radiation intensity from a half-wavelength antenna, expressed…

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Q: You are given 5 identical antennas (with the same structure and features) of unknown gain to be used…

A: Antenna:A conductor by which electromagnetic wave are sent out or received, consisting commonly of…

Q: A parabolic antenna having a circular aperture mouth has a power gain of 1000 for wavelength of 10…

A: Power gain (Gp) of a parabolic antenna having a circular aperture with aperture diameter D can be…

Q: A parabolic antenna with a dish diameter of 4.5 m operates at frequency of 2.5 GHz (assumed uniform…

A: The detail solution in the image

Q: The lowest value of the transmitted power of a pulsed radar signal in order to detect a target area…

A: It is given that: Cross-sectional area=σ=10 m2Distance=D=120 kmFrequency=ν=35 GHzGain=G(dB)=34 dBSo,…

Q: Directivity of an antenna is given as 20 dB. If the antenna is transmitting at 300 MHz, then what…

A: The directivity (D) of an antenna depends on the effective aperture (Ae) of the antenna and their…