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: A resonant half-wavelength dipole is made out of iron (o=1×107 S/m) wire. Determine the…

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Q: 3. The effective antenna temperature of an antenna looking toward zenith is approximately -270…

A: Antenna :   An antenna or aerial, used with a transmitter or receiver, is the contact between radio…

Q: 1. A 100-turn air-core circular loop of diameter 0.3 m is to be used as an antenna at 5 MHz. For…

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Q: Q1: The radiation intensity pattern expression for an antenna is given by: F(0) = %3D 0 elsewhere…

A: This is a basic problem of antenna characteristics. The formula and calculation is shown in the next

Q: Explain why input impedance of an antenna is important while choosing antenna for communication. A…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 10. (i) Find the current required to radiate a power of 100 W at 100 MHz from 0.1 m Hertzian dipole.

A: As per the rules we can answer only one question, please post the remaining questions as the…

Q: The PCB monopole antenna shown in figure below is required to be designed for Bluetooth Low Energy…

A: Given: The PCB monopole antenna shown in the figure below  is required to be designed for Bluetooth…

Q: Q] The E-field pattern of an antenna, varies as follows: E(0,4) = 10 cos? (0) sin(o) V/m for 0…

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Q: A transmitter has an output power of 50 W. It is connected to its antenna by a feed line that is 25…

A: In this given question transmitter output power of 50W . it is connected to antenna and feed line…

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: A thin dipole antenna having a length of one fifteenth of wavelength has a loss resistance of 2.5…

A: Antenna efficiency is a measure of how efficiently antenna can radiate. It can be expressed by the…

Q: (c) A patch antenna is to be used as part of a system for early detection of breast cancer. It is to…

A: Patch antenna is basically defined as the micro antenna which is mounted on a geometrical shaped…

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: Calculate the radiation resistance of a short dipole (with a triangular current distribution) of…

A: We are authorized to answer one question at a time since you have not mentioned which question you…

Q: :Design an antenna with omnidirectional amplitude pattern with half-power beamwidth of 900 with…

A: Since the half-power bandwidth is 90° the angle at which the half-power period occurs is θ = 45°

Q: 1. The ratio of radiation intensity in a given direction from antenna to the radiation intensity…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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

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Q: A half-wave dipole antenna is excited by a sinusoidally varying current with an amplitude Io = 2 A…

A: We need to find out power and solid angle and standing wave ratio for given antenna

Q: A 2 m long center-fed dipole antenna operates in the AM broadcast band at 1 MHz. The dipole is made…

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Q: Example: Find beam solid angle and the maximum directivity Do if the normalised field nattern of a…

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Q: 2. The E-field pattern (radiation intensity) of an antenna 0<¢<360°, varies as follows: 1 0° <0< 45°…

A: Evaluating the radiation parameter:

Q: As communication engineer you are requested to design a radio communication system using parabolic…

A: It is given that: D=120cmfrequency=1800MHzinput power Pin=1 KWradiated power P=62 Wadiation…

Q: 23. A microstrip patch antenna operating at 2 GHz has an efficiency of 66% and an antenna gain of 8…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: An infinitely small dipole antenna is operated at a frequency of 3 C is up. Since the current…

A: L=λ/60 =0.00166f=3GHzPt=0.9watt I=5mAλ=cf=3×1083×109        =0.1m

Q: 2.14. The normalized radiation intensity of an antenna is rotationally symmetric in ø, and it is…

A: Directivity of antenna: It is the power density of the antenna and its direction is a maximum…

Q: Design a dipole antenna with 1 reflector and 1 director whose frequency is operating from 85 MHz to…

A: An antenna is a communication device that transmits and receives signals to represent data. In the…

Q: antenna has a gain of 30 dB. It is fed by an RG-8/U foam transmission line 115  m long whose…

A: We need to calculate radiated power for given system .

Q: 2. WHAT Is THE OPERATING RANGE OF A DIPOLE AnTEnnA 15 GIVEN AS 3.8% of THE BIANOWIDTH OF A 36MHz?

A: We need to tell about the operating range of antenna .

Q: compute for the center frequencey and wavelength in a dipole antenna with 1 reflector and 1 director…

A: An antenna is a communication device that transmits and receives signals to represent data. In the…

Q: A λ / 2 dipole , with a total loss resistance of 1 ohm , is connected to a generator whose internal…

A: Antenna:- It's main purpose is to transmit and receive signals between wireless points. It consists…

Q: The directivity of an antenna is given by: D(8,4) =sir 3 sin²(e). If the antenna has a total…

A: The directivity of an isotropic antenna varies between 0 to 1. The directivity of a idealized…

Q: 4.67. A vertical, infinitesimal in length (I = 1/50), monopole is placed on top of a police car, and…

A: It is given that: l=λ50f=10 MHzPrec=10μwatts

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: Find the maximum power gain for Hertzian dipole antenna with 0.2 m length at frequency of 2.4 GHz.…

A: Given,For a hertzian dipole antenna,Length=0.2mFrequency=2.4GHzRadiation intensity = 15…

Q: The radiation intensity pattern expression for an antenna is given by: F(0) 0 elsewhere Determine:…

A: This is a basic problem of antenna characteristics The formula and calculation is given below

Q: What will be the radiation resistance of a dipole antenna whose effective length is equal to a…

A: Given information: The effective length of the dipole antenna is equal to a quarter of a wavelength…

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: Calculate the radiation resistance of a half-wave dipole antenna if the feedpoint is 0.5 m from one…

A: It is given that: L=0.5 mf=300 MHz=300×106 Hz

Q: Please show all steps A parabolic dish antenna has a diameter of 5 meter, operating at 30 GHz…

A: Given, Parabolic dish antenna has Diameter (D) = 5 meter Operating frequency (f) = 30 GHz

Q: If the diameter of a parabolic reflector antenna is 1.5 m, then what will be the half power…

A: Given information: For a parabolic reflector antenna, the diameter of the antenna is given as D=1.5…

Q: The radiation resistance of a dipole antenna is 359 ohms and the antenna is operating at a…

A: Given that Rrad =359 ohm wavelength =0.05 m Although formula for radiation resistance for dipole…

Q: A centre fed linear dipole antenna, three and half wavelength long, has a feed current of 15 A RMS.…

A: The rms electric field at some distance away from an antenna can be expressed as

Q: f 50 watts are transmitted by a unity gain antenna at 900 MHz carrier frequency, find the received…

A: Given in the question: Power of the transmitted antennae, Pt=50W Carrier frequency, F = 900MHz As it…

Q: Determine the maximum effective area of a Hertzian dipole of length 10 cm oper ing at 10 MHz. If the…

A: In Antenna Array the group of radiating element produce radiation in one direction. . Its radiation…

Q: The half wave dipole antenna height of transmitter is 175 m and antenna height of receiver is 18 m.…

A: Given:  The height of the transmitter is ht=175 m.The height of the receiver is hr=18 m.The field…

Q: Calculate the radiation resistance of a half-wave dipole antenna if the feedpoint is 0.5 m from one…

A: Given data: Half-wave dipole antenna in which f=300 MHzL=0.5 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.