If the solid angle subtended by the main beam of an antenna is 0.5 steradian  then what will be the directivity of the antenna?

Q: A transmitter is having a maximum dimention of 10 m and a far field distance of 56 m. What will be…

A: For any antenna, the far-field distance (df) is given by the following equation:

Q: A shirt vertical grounded antenna is designed to radiate at 10 MHz. What will be radiation…

A: Radiation resistance is a fictitious resistance. When an antenna radiates, the total power radiated…

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: An antenna with a VSWR of 1.5 is connected to a 50-92 transmission line. What is the reflected power…

A: Given: Voltage Standing Wave Ratio (VSWR) value of 1.5. The input power is 10 W   To calculate the…

Q: 2.5. How much microwave power is received by a 3-m² antenna if the elec- tric field at the antenna…

A: Given, The electric field at the antenna, E=10-5 Vm The magnetic field at the antenna, H=2.6×10-8 Am…

Q: If the wavelength of a signal is 30 mm, then what is the phase constant  of the material when a…

A: Wavelength of the signal is 30 mm  Lambda = wavelength = 30 mm  Phase constant is betta    From…

Q: Question A half-wave dipole antenna has Rjoss = 10. What is the antenna gain? | 1.48 )4.18 dB | 1.62…

A: solve prob,,,,

Q: Which of the following modes cannot propagate in a rectangular waveguide? TE^(01) TM^(11) TM^(10)…

A:

Q: What is the critical frequency for reflection at vertical incidence if the maximum value, of…

A: Although formula for critical frequency is given by  fC=9Nm  MHzwhere,Nm=maximum electron density…

Q: 3- Half power beam width of infinitesimal dipole is a) 45 b) 180 c) 135 d) 90

A: Hertzian dipole have radiation patter as

Q: An antenna is mounted on a 2 meter rod that is held out of level so that the antenna is offset by…

A: Length of the rod, L = 2 meters.And,The antenna is offset by 0.4' from the bottom of the rod.

Q: If the first-null beamwidth FNBW is 20 degrees for an acoustic array in air at a frequency of 440…

A: Given First-null beamwidthFNBW1=20°At frequencyf1=440 HzFrequencyf2=880 Hz

Q: 6. For a given waveguide aperture, explain why the high-frequency component has a higher group…

A: Step-1> In a waveguide, the group velocity refers to the velocity at which the envelope of a…

Q: For an antenna having a directivity of 40 dB, what will be the effective aperture if the frequency…

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

Q: What is the wavelength corresponding to a frequency of 300 MHz?

A: In this case, the wavelength corresponding to a frequency of 300 MHz is to be determined.

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: A 60 MHz plane wave comes from a lossless dielectric medium with a relative dielectric value of 1.96…

A:

Q: An array antenna has 6 half-wave driven elements that are separated by 1.5m and the resulting…

A: Half Power beam width The resulting HPBW (Half-power beam width) of the array antenna is the phase…

Q: If a small single-turn loop antenna has a radiation resistance of 0.04 2, how many turns are needed…

A: Resistance opposes the flow of current. The radiation resistance in antenna is caused by EM wave.…

Q: An EM wave comes from air to a surface with a relative dielectric value of 90. What is the angle at…

A:

Q: What is the Different between dipole antenna and half wave dipole antenna

A: The explanation is as follows.

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: If a parabolic antenna is equipped with a 10 m diameter dish, then what will be the first null…

A: The angular separation between the two nulls on either side of the main lobe of the antenna's…

Q: 5. For a wave with its frequency below the cutoff of a waveguide, if you try to pump it into the…

A: We need to explain how the wave would behave inside and inside the waveguide aperture if its…

Q: What does the TE mean? Why does one have a 10 as subscript and the other mn? What is a broad and…

A:

Q: The gain of a paraboloid reflector antenna with circular aperture mouth is 1000 when the frequency…

A: Given information: The gain of the antenna system G=1000 The frequency of operation f=300 MHz From…

Q: For a horn antenna, the radiation resistance is 2500 ohms and the loss resistance is 100 ohms.…

A:

Q: What is the number of cut-off waves of the dominant TE mode in a rectangular waveguide filled with…

A:

Q: The directivity if an antenna is 1.5. what will be the value of the beam solid angle of the antenna?

A: Directivity of an antenna is a measure of how efficiently an antenna can radiate in a specified…

Q: Directivity of antenna radiating at 15 MHz is 120. What will be effective aperture of the antenna?

A: Given information: The frequency of operation is f=15 MHz The directivity of the antenna is D=120

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: 15-10. Determine the effective radiated power for an antenna with directivity = 400 efficiency…

A: It is given that: D=400η=0.60Pin=50 W

Q: antenna is 100mA. 1. What is the magnitude of E at a distance of 100m in the broadside plane for…

A: The General Expression of  Electric field and Magnetic field for a Half-Wavelength Dipole Antenna is…

Q: An antenna is transmitting a wavelength of 0.06 m. If the directivity of the antenna is 40, then…

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

Q: A vertical grounded antenna can radiate only at 10 MHz frequency. If the radiation resistance of the…

A: The radiation resistance of a vertically grounded antenna can be expressed by the following…

Q: Answer quickly.   Antenna and Wave Propagation.   Antenna is supplied with a power of 10 W.…

A: The given data is as follows:-

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: If the diameter of a parabolic reflector antenna is 1.3 m, then what will be the half power…

A: Given, Diameter d=1.3 m Wavelength λ=0.2 m

Q: A dish antenna has a gain of 108 at 300 MHz. What will be the diameter of the dish antenna?

A: Diameter (D) of a dish antenna depends on the gain of the antenna and the wavelength of radiation.…

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: 7. Pyrheliometer is used to measure direct beam radiation and can be used to measure diffuse…

A:

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.