chose the correct 6. Which of the following statement is true related to the major lobe? a) It is a radiated part that covers maximum area containing maximum radiated energy. b) It is a radiated part that covers a minimum area containing maximum radiated energy. c) It is a radiated part that covers the average area containing maximum radiated energy. d) All above 7. Antenna can be polarized in ways. a) 1 b) 2 c) 3 d) 4 8. The fundamental requirements of an antenna to transmit is :- a)High efficiency b) Low side lobes c) Large signal to noise ratio d) all above

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

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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: A phased array is to be designed that satisfies the following requirements at 10 GHz: (1) The…

A: A phased array is a computer-controlled array of antennas that produces a beam of radio waves that…

Q: Antenna dimension needed for transmitting signals is at least /4. Select one: True False

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Q: Radiated power by an antenna is inversely proportional to the square of wavelength Select one: True…

A: We need to tell about radiated power of antenna.

Q: Maximum dimension of antenna is 0.5m and operating frequency is 9 GHz, thus the the following…

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

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Q: A parabolic reflector with an FID ratio of 0.4 is fed by a small horn placed at the focal point that…

A:

Q: An antenna has a gain of 44 dB. Assuming that the main beam of the antenna is circular in cross…

A: If G is the gain of an antenna, then the gain can be expressed in decibels (dB) in the following…

Q: 5. Radiation patterns is plotted graphically in terms of a) Angular position and radial distance b)…

A: According to the bartleby's guidelines we have to solve only one question posted by students so…

Q: The Voyager 1 spacecraft, now in interstellar space, radios data back to Earth using a 22.4-W…

A: The antenna is broadcasting in all direction, the  practical power of the transmitter will  be…

Q: An air-filled 5- by 2-cm waveguide has E, = 20 sin 40mx sin 50ry e jB: V/m at 15 GHz. (a) What mode…

A: Wave is function of space and time. The mode at which waveguide have lowest frequency is said to be…

Q: alculate the maximum effective aperture of a microwave antenna which has a directivity of 900 at 200…

A: Given information: The directivity of the microwave antenna is D=900 The operating frequency is…

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: Q2] The maximum radiation intensity of a 90% efficiency antenna is 200 mW/unit solid angle. Find the…

A: According to question, given, efficiency = 90% maximum radiation intensity = 200 mW/unit  we have to…

Q: (C) The radiation intensity of the antenna is given U (0, q) = cos“ (0) sin (9), for the 0< 0<n/2…

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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: 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: For a single wire antenna, explain (in your own wc radiation from this antenna.

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Q: ance of 5 W, measured at the feedpoint. Calculate the

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Q: 2.16. The normalized radiation intensity of an antenna is rotationally symmetric in , and it is…

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Q: There is no radial component in the . Fresnel field region Far field region near field region if the…

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Q: An antenna has a loss resistance of 25 ohms, power gain of 30 and directivity of 42. Calculate the…

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Q: Consider a 90° corner reflector antenna with a half-wave dipole as the driving element and an…

A: The angle of the corner reflector antenna (θ) is given as 90o. Evaluating the area:

Q: 9. Radiation intensity is the Power radiated from an antenna per unit solid angle . a) True b) False…

A: 9) Radiation intensity is the power Radiated from antenna per unit solid angle  U = Prad/solid angle…

Q: Find the beam area of an antenna has a major lobe defined by the angles 0< e <60 and 0< O <90,…

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Q: A broadside array operating at 100 cm wavelength consists of 8 half-wave dipoles placed 50 cm apart.…

A: Given a broadside array operating at 100 cm wavelength consist, Number of dipoles, n = 8 Radio…

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: (c) A TV broadcast antenna transmits power of 3 kW at frequency of 200 MHz. The transmitter antenna…

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Q: Large radio telescopes, like the one in Arecibo, Puerto Rico, can detect extremely weak signals.…

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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: 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: Consider a communications satellite that orbits the Earth at a height of about 40,000 km. At this…

A: Communication Satellite: A communications satellite is a man-made spacecraft that uses a transponder…

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: ATR works by measuring the changes that occur in an internally reflected IR beam when the beam comes…

A: ATR stands attenuated total reflectance it is sampling method which is used for enable the sampling…

Q: If the effective height of an areal is 1/150th of the wavelength, then estimate its radiation…

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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: in a C band GEO satellite, the satellite transponder output power is 20 W, the satellite antenna…

A: The noise originating on the source resistance feeding the receiver, which can be viewed as the…

Q: Determine the efficiency of a dipole antenna that has a radiation resistance of 67 ohms and has a…

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Q: 5. This overhead view of the city of Chicago was taken by Landsat. T image is best described as an…

A: Answer: (C) Satellite imagery Landsat is a program jointly run by NASA and U S geological survey. It…

Q: Determine the maximum distance between 18m high antenna transmitting 10W of power and a 10m high…

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Q: This instrument normally used almost during every phase of flight, makes use of an antenna mounted…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Calculate the first null beamwidth of a parabolic reflector antenna with 5m diameter of aperture.

A: For any antenna, the first null beamwidth refers to the angular separation between the two nulls…

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: A) Unity 5. Which among the following defines the angle between two points on each side of major…

A: We need to select correct option for given statement .

Q: Dipole with length 5m operating at frequency 1 MHz. The radiation resistance of antenna is * O 1.677…

A: .

Q: A michelson inferometer is adjusted to give a fringe pattern of concentric circles when illuminated…

A:

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

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Antenna Characteristics

The antenna is an important concept in the domain of electronics and communication engineering. An antenna forms an integral part of many commonly used devices such as wireless modems, routers, game controllers, mobile phones, bluetooth devices, and so on. In simple terms, any wireless communication makes use of antennas to serve the purpose. An antenna, also known by the term 'arial', is an electrical device that converts electrical signals into electromagnetic waves or electromagnetic waves into electrical signals. An antenna contains a transmission line usually made up of co-axial cable, it then receives the signals and converts them into electromagnetic waves, which are then transmitted via space into their required destination. A communication system essentially makes use of two antennas, a transmission antenna, which converts electrical signals into electromagnetic waves, and a receiving antenna, which receives the electromagnetic waves and converts them back into electrical signals.