A 3cm long center-fed dipole is used as an antenna at 100MHz. The antenna wire is made of copper and has a radius α = 0.2mm. Find the radiation resistance and radiation efficiency of the dipole antenna.

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: What are the types of the log-periodic dipole antenna?

A: We need to tell about type of log periodic antenna .

Q: a) With aid of diagrams, explain the followings antenna terminologies: i) Bandwidth ii) Main lobe…

A: Antenna It is a type of transducer that converts radio frequency fields into alternating current…

Q: An antenna with a small radiation resistance has which of the following properties: Select one: O a.…

A: The solution is given below

Q: The realtionship between the lengthof the dipole and the beamwidth a. As the length of the antenna…

A: The relationship between the length of the dipole and the beamwidth?

Q: . Radiation Power and Radiation resistane. . Maximum davectivity. . MaXimum effective aperture.

A: "According to the Company's policy, we will solve the first three subparts of the question". The…

Q: 3- The half wave dipole is widely used in more applications compared to other linear antenna…

A: We need to tell about the half wave dipole antenna.

Q: Gain of a half wave dipole antenna ls 1.641. Express it in terms of decibel.

A: Gain or directive gain (G) of an antenna is a measure of how efficiently an antenna can radiate in a…

Q: power radiated by the antenna.

A:

Q: (b) Figure Q3. (b) shows a beam antenna consisting of a dipole, a reflector, and a director. Design…

A: Since the user has asked for the solution of the question 3 (b). Hence, we will solve only this…

Q: The total dipole moment may reach a significant magnitude as a result of random .orientation True…

A: In random orientation the total dipole moment is the algebraic sum of all the dipole moments aligned…

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

A:

Q: What are the applications of log-periodic dipole antenna?

A: There are many applications of log periodic dipole antenna due to its wide bandwidth.

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

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: A p-n photodiode has a quantum efficiency of 67 % at a wavelength of 0.9 pm .Calculate a. Its…

A: Given quantum efficiency=67%=0.67 wavelength=0.9 pm=0.9*10^-12 m

Q: The radiation and loss resistances of an ante iation efficiency a. TRUE b. FALSE

A: The radiation efficiency is equal to where =radiation resistance and =Loss resistance. Hence,…

Q: Estimate the free space path loss between two radiating sources of the distance between the two…

A: Calculating free space path loss FSPL=20log10d+20log10f+20log104πcFSPL=20log10155 Km+20log10490…

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: H.W: Find (HPBW) and (FNBW), in radians and degrees, for the following normalized radiation…

A:

Q: m long vertical conductor operates over a perfectly conducting ground plane. It is ase-fed at a…

A:

Q: The radiation resistance of a dipole antenna is 355 ohm. What will be the efective length of the…

A: The radiation resistance of a dipole antenna can be expressed as

Q: The radiation resistance of a dipole antenna is 2 ohm. Estimate the length of the dipole antenna in…

A: For a dipole antenna, the expression of the radiation resistance (Rr) is given as

Q: A vertical grounded antenna is constructed to operate at 20 MHz. What will be its radiation…

A: Given: Frequency of operation, f=20 MHz Effective antenna height, l=65 m

Q: Estimate the total length of dipole FM antenna (L) and the length of each dipole (E) in meter if the…

A: We need to find out the length of antenna and length of dipole .

Q: Find Xc Z, I, VR.Vc and don't forget to put their units. Source voltage 250z50° 12.5 kQ 3.5 kQ 140…

A: The solution is given below.

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: 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?…

Q: A vertical grounded antenna is constructed to operate at 20 MHz. What will be its radiation…

A: Write the expression for radiation resistance of the antenna as follows:

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

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

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.