A resonant half-wavelength dipole is made out of iron (o=1×107 S/m) wire. Determine the conduction-dielectric (radiation) efficiency of the dipole antenna at f = 500 MHz if the radius of the wire b is 3×10-42, and the radiation resistance of the 1/2 dipole is 73 ohms. (μο- 4πx10 )

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: What will be the wavelength of a dipole antenna whose effective length is 8.5 m and radiation…

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Q: According to the book the answers are (a) 3 cm, (b) 6.52 GHz, (c) 3.957 x 108 m/s, (d) 2.274 x 108…

A: Here is the step-by-step explanation:We have:Internal dimensions of the waveguide: (a = 2.3  cm) and…

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A:

Q: : Assume that a certain half-wave dipole antenna has a radiation pattern given by U- Ba sin'o Find…

A:

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

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A: The Answer is

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

A:

Q: For a helical antenna, the radiation resistance is 250 ohms and the loss resistance is 50 ohms.…

A: Given: For a helical antenna, the radiation resistance is given as Rr=250 Ω and the loss resistance…

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

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

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Q: What will be the wavelength of a dipole antenna whose effective length is 8.5 mm and radiation…

A: The radiation resistance of a dipole antenna is given as Rrad=80π2hλ2 Ω--->(1) where h is the…

Q: Consider a GaAs LED with a refractive index of 3.66. The LED's surface is coated with a dielectric…

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.