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Q: 1. The relationship between antenna efficiency and radiated power A. no relation B. Direct…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: An antenna has a gain of 7.425DB at 300MHZ. Find the area and the radius of this antenna.

A:

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: 1. Which of the following describes an isotropic antenna? a) A grounded antenna used to measure…

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: An antenna operating on a frequency of 25 MHz has a quality factor of 40. What will be the estimated…

A: For any system, quality factor (Q) is a measure of the performance of the system. Higher value of…

Q: An antenna has an effective length of 100 m and the current at the base is 450 A (rms) at 40 kHz.…

A: The power radiated by the antenna can be expressed as

Q: Design a dipole antenna with 1 reflector and 3 director whose frequency is operating from 115MHz to…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What circuit Q is required to give a bandwidth of 56 MHz at a frequency of 44 GHz? Round the final…

A: Q factor given by Q=  resonance frequency/ bandwidth Here given frequency is 44Ghz  Bandwidth =…

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

A:

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

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

Q: 19. Overcrowding in the frequency spectrum is prevalent in which area of the spectrum? a. EHF b. UHF…

A: Answer the following questions : 19. Overcrowding in the frequency spectrum is prevalent in which…

Q: Q1. Multiple Choice Questions (MCQ): 1. For a horn antenna, in which flaring is done only in one…

A: As per guidelines given to us we can only provide the solution of first question in multiple type of…

Q: An antenna has a field pattern given by E(O) = cos e for 0 ses 90 Find the half-power beamwidth…

A:

Q: Hiw A uniform Plane wave travels through air and is incident onto the boundarg of two media. The…

A: "Since you have asked multipart questions, we will solve the first three subparts for you. If you…

Q: Q1. Multiple Choice Questions (MCQ): 1. For a horn antenna, in which flaring is done only in one…

A: 1) For a horn antenna , in which flaring is done only in one direction is Sectoral antenna.…

Q: frequency (MUF) for transmission at an angle of incidence of 75° is 20MHz. A) What is the critical…

A: In this question we will find critical frequency and optimum working frequency of transmission....

Q: A GSM1800 cell tower antenna is transmitting 20W of power in the frequency range of 1840 to 1845MHZ.…

A:

Q: A transmitting antenna with an effective height of 10 m has 50 A current at the base. If the…

A: The power transmitted by the transmitted antenna can be expressed as

Q: As an application engineer, you found three-unit directional antennas operate at 1.575 GHz with…

A: Given: The three-unit directional antennas operate at 1.575 GHz with unknown gain. The first antenna…

Q: 2TA-The transmitting antenna of a radio navigation system is a vertical metal mast 25 m in height…

A: For a radio navigation system, The transmitting antenna is a vertical metal mast 25 m in height…

Q: Prepare a table of values for the change of maximum usable frequency when an incident angle change…

A: To prepare the table of values which shows the relation between maximum usable frequencies with the…

Q: The gain of a parabolic reflector antenna is 1000 when the frequency is 300 MHz. If the mouth of the…

A: The gain of a parabolic reflector antenna with a circular aperture mouth can be expressed as…

Q: 5. When a power Pt is transmitted by an antenna, amount of energy incident on the target is given by…

A: The correct option along with the explanation is provided in the following section.

Q: A water molecule consists of two hydrogen atoms bonded with one oxygen atom. The bond angle between…

A: Given values are - E=2.8×10-8NCBond angleθ=104oBond lengthO-Hd=0.95Angstrom=0.95×10-10m Given…

Q: isotropic What is the power density of a 1-kW signal radiated from an radiator, at a distance of…

A:

Q: (a) Find the current required to radiate a power of 100 W at 100 MHz from 0.1 Herztian dipole. (b)…

A: (a) Given: P=100 Wf=100 MHzdL=0.1 m To find: The current required to radiate the power?

Q: 19. Overcrowding in the frequency spectrum is prevalent in which area of the spectrum? a. EHF b. UHF…

A: 19)The frequency range of different bands are--- EHF-------> 30GHz-300GHz…

Q: * A rectangular waveguide of dimensions (2.3 cm) is filled with air and transmits an electromagnetic…

A: The Answer is

Q: 10. (a) Find the current required to radiate a power of 100 W at 100 MHz from 0.1 Herztian dipole.…

A: Part (a): Given, Power =100 W, Frequency = 100 MHz 0.1 Hertzian dipole, Now, λ=cfλ=3×108100…

Q: Q3) Find the value of a signal at time of 1s, if the frequency is 1GHz, the amplitude is 2V, and the…

A:

Q: What is the required bandwidth according to the Carson's rule, when a 100 MHz carrier is modulated…

A: Given information: The frequency of the carrier signal is fc=100 MHz. The modulating frequency is…

Q: 02) If the radiation intensity of the antenna is u(0, 4) = " cos³e (W/sr) c) Caleulate the…

A: Part (c): The mathematical expression for the directivity is given by: D=umaxuavg Here, umax…

Q: What is the maximum power received at a distance of 500m over a free space with 1GHz transmitted…

A:

Q: Q1: Answer the following sentences with (True) or (False) then correct the false sentences: 1- When…

A: We need to tell about whether the given statement is true or false.

Q: A radio station operating at 120 MHz has two identical antennas that are in phase. Antenna 2 is 10 m…

A: radio station operating at 120 MHz has two identical antennas that are in phase. Antenna 2 is 10 m…

Q: A set of 10 identical radiating point elements at d = 0.58 separated by a space if you know that the…

A: Group factor-  Group Factor is an assumed value which shows that every element experience the same…

Q: A 275-ft-high transmitting antenna has a gain of 12 dB over a dipole. The receiving antenna, which…

A:

Q: Use De Broglie Wavelength equation to calculate the wavelength of an atom that has a radius of r = 9…

A: Note : It is not given atom lies in which Bohr so assuming it 2nd Bohr and then solving the…

Q: The directivity of a half wave dipole is 2.15 dBi. The antenna is operating at 1.78 GHz at an…

A: We need to find out effective area.

Q: phase velocity of the electromagnetic wave in Mm/s (megameters/second)

A: The phase velocity of an electromagnetic wave is defined as the propagation velocity of the…

Q: An antenna operating on a frequency of 20 MHz has a quality factor of 50. What will be the estimated…

A: Given data: The operating frequency of the antenna is f=20 MHz The quality factor of the antenna is…

Q: The directivity of an antenna is 12 dB. What will be the beam solid angle of the antenna? Express…

A: If D is the directivity of an antenna, then the directivity in decibels can be expressed as Here,…

Q: What will be the effective isotropic radiated power of an antenna transmitting 25 W of power and the…

A: The effective isotropic radiated power is the product of the power transmitted (PT) by an antenna…

Q: An antenna in air radiates a total power of 100 kW so that a maximum radiated elec- tric field…

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: 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: What magnitude of frequency does the cellphone signal band lie on in the electromagnetic spectrum?…

A: Cellphone signal are radio wave frequency.

Q: A GSM1800 cell tower antenna is transmitting 20W of power in the Frequency range of 1840 to 1845MHz.…

A: Given, pt= 20 WGt=17 dB Converting dB to 'normal value', 10 log Gt=17Gt=101.7d= 50 m

Q: An antenna has a field pattern given by E(0) = 2sin(0.750) for 0'sos 90. Find a) The half-power…

A: Given Eθ=2sin0.75θ      The half-power level occurs at those angles θ for which Eθ=12…

Q: Find the frequency in (Mhz) on a 20m wavelength of the spectrum. [Don't write the unit it is given…

A: Given wavelength= 20 m  To find frequency :  Frequency and wavelength relation is given by.…