2. Given a current I(t) = I m charge as a function of time of the charge is Qm. sin(at + p) on a Hertzian dipole antenna, what is the Q(t) on the antenna? Assume the maximum amplitude

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

A: Given information: The effective length of a dipole antenna is le=8.5 m The radiation resistance of…

Q: A microwave oven cooks food by irradiating the food with microwave power generated by a magnetron.…

A: tan δc=0.35Operating frequency = 2.45∗109 HzFind: -The average power per cubic meter.

Q: How the radiation resistance of a dipole antenna varies with its effective length? Find out the…

A: Given information: The dipole antenna, under consideration, is operating at a frequency of f=300 MHz

Q: Length of a thin dipole antenna is 1/10th of its wavelength. Find the value of the radiation…

A: Radiation resistance of a thin dipole antenna is expressed in the following way:

Q: A grounded vertical antenna is fed at the bottom by a current (rms) of 32 A. The wavelength of…

A: For a grounded vertical transmitting antenna, the rms electric field can be expressed by the…

Q: What will be the wavelength of a dipole antenna whose effective length is 8.2 m and radiation…

A: For an dipole antenna  Length=wavelength/2

Q: A thin dipole antenna is having an effective length of one fiftinth of its wavelength. What will be…

A: For a thin dipole antenna, the radiation resistance depends on the wavelength of radiation and it…

Q: A circular loop antenna with cross-sectional area 10 cm2 is absorbing power from electromagnetic…

A: The power absorbed by the circular loop antenna can be given by: P = (1/2) × R × I2   where ,  R is…

Q: For a dipole antenna, the radiation resistance is given as 523 ohms. What will be the effective…

A: The radiation resistance of a dipole antenna can be expressed as Rr=80π2leλ2 Ω  where le is the…

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: The radiation resistance of a dipole antenna is 377 ohms. Express its effective height as a function…

A: Given information: The radiation resistance of the dipole antenna is Rrad=377 Ω

Q: Calculate the length in meter of a half-wave dipole for an operating frequency of 20 MHz assuming a…

A:

Q: If a half wave dipole antenna has a peak antenna current of 10 A, then estimate the power radiated…

A: The power radiated by a dipole antenna can be expressed as

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.