1. Which of the following describes an isotropic antenna? a) A grounded antenna used to measure earth conductivity b) A theoretical antenna used as a reference for antenna gain c) A horizontally polarized antenna used to compare Yagi antennas d) A spacecraft antenna used to direct signals toward the earth.

Q: For a dipole antenna, the radiation resistance is 49.35 ohms. Express the effective length of the…

A: From the given range of radiation resistance of the dipole antenna.   We can say that the given…

Q: What will be the wavelength of a dipole antenna whose effective length is 8 m and radiation…

A:

Q: The figure below shows a radio-wave transmitter and a receiver separated by a distance d = 47.0 m…

A: Distance between the transmitter and the receiver d=47.0 m Height of the transmitter or the receiver…

Q: An isotropic antenna is transmitting 25 W of power. What will be the power density at 20m away from…

A: An isotropic antenna is an omnidirectional antenna. Therefore, the radiation is evenly spread out in…

Q: What will be the radiation resistance of a dipole antenna whose effective length is 52.5 nm and…

A: Given information: The effective length of the dipole antenna is leff=52.5 nm The wavelength of…

Q: Multiple Choice Questions (MCQ): (15 M 1. For a horn antenna, in which flaring is done only in one…

A: Given  Few multiple choice questions based on antenna theory. Please find the below attachment for…

Q: 101 An omnidirectional antenna (isotropic) has a field pattern given by E = – V/ where I is terminal…

A: If Pt represents the transmitted power by the antenna, then the following equation can be written:…

Q: With a operational frequency of 30GHz, what is the effective length of a half-wave dipole?

A: Step-1-> The effective length of a half-wave dipole can be calculated using the formula: L=λ2…

Q: I need a full and clear expert solution for handwriting.

A: .Step 1:  (A)- What happens to the beam-width of antenna if the frequency of operation is increased?…

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.