Average Radiation Intensity Calculator

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Antenna Theory Parameters

Special Antennas

Wave Propagation

✖Radiation Intensity refers to the power radiated per unit solid angle by an antenna in a specific direction.ⓘ Radiation Intensity [U]			+10% -10%
✖Directivity of antenna measures the degree to which the radiation emitted is concentrated in a single direction.ⓘ Directivity of Antenna [D_a]			+10% -10%

✖Average Radiation Intensity is the average component of antenna resistance that accounts for the power radiated into space.ⓘ Average Radiation Intensity [R_avg]

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Formula

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Average Radiation Intensity

Formula

`"R"_{"avg"} = "U"/"D"_{"a"} `

Example

`"337.5W/sr"="27W/sr"/"0.08" `

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Average Radiation Intensity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Average Radiation Intensity = Radiation Intensity/Directivity of Antenna
R_avg = U/D_a
This formula uses 3 Variables

Variables Used

Average Radiation Intensity - (Measured in Watt per Steradian) - Average Radiation Intensity is the average component of antenna resistance that accounts for the power radiated into space.
Radiation Intensity - (Measured in Watt per Steradian) - Radiation Intensity refers to the power radiated per unit solid angle by an antenna in a specific direction.
Directivity of Antenna - Directivity of antenna measures the degree to which the radiation emitted is concentrated in a single direction.

STEP 1: Convert Input(s) to Base Unit

Radiation Intensity: 27 Watt per Steradian --> 27 Watt per Steradian No Conversion Required
Directivity of Antenna: 0.08 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_avg = U/D_a --> 27/0.08

Evaluating ... ...

R_avg = 337.5

STEP 3: Convert Result to Output's Unit

337.5 Watt per Steradian --> No Conversion Required

FINAL ANSWER

337.5 Watt per Steradian <-- Average Radiation Intensity

(Calculation completed in 00.004 seconds)

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Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

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< 24 Antenna Theory Parameters Calculators

Distance between Transmitting and Receiving Point

Go Transmitter Receiver Distance = (Antenna Current*120*pi*Height of Transmitter*Height of Receiver)/(Strength of Ground Wave Propagation*Wavelength)

Height of Transmitting Antenna

Go Height of Transmitter = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Antenna Current*Height of Receiver)

Height of Receiving Antenna

Go Height of Receiver = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Height of Transmitter*Antenna Current)

Antenna Current

Go Antenna Current = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Height of Transmitter*Height of Receiver)

Strength of Ground Wave

Go Strength of Ground Wave Propagation = (120*pi*Height of Transmitter*Height of Receiver*Antenna Current)/(Wavelength*Transmitter Receiver Distance)

Friis Formula

Go Power at Receiving Antenna = Transmitting Power*Gain of Receiving Antenna*Gain of Transmitting Antenna*Wavelength^2/(4*3.14*Transmitter Receiver Distance)^2

Power Density of Antenna

Go Power Density of Antenna = (Total Input Power*Antenna Gain)/(4*pi*Transmitter Receiver Distance)

Effective Area of Antenna

Go Effective Area Antenna = (Thermal Resistance*Incremental Temperature)/Power Density of Antenna

Noise Temperature of Antenna

Go Antenna Temperature = (Power Density of Antenna)/(Thermal Resistance*Bandwidth)

Total Power of Antenna

Go Total Power of Antenna = Thermal Resistance*Antenna Temperature*Bandwidth

Radiation Intensity

Go Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna

Average Radiation Intensity

Go Average Radiation Intensity = Radiation Intensity/Directivity of Antenna

Directivity of Antenna

Go Directivity of Antenna = Radiation Intensity/Average Radiation Intensity

Radiation Resistance

Go Radiation Resistance = Total Antenna Resistance-Ohmic Resistance

Ohmic Resistance

Go Ohmic Resistance = Total Antenna Resistance-Radiation Resistance

Power Per Unit Bandwidth

Go Power per Unit = Thermal Resistance*Resistor Absolute Temperature

Total Antenna Resistance

Go Total Antenna Resistance = Ohmic Resistance+Radiation Resistance

Antenna Gain

Go Antenna Gain = Radiation Intensity/Isotropic Radiation Intensity

Length of Binomial Array

Go Length of Binomial Array = (No of Element-1)*Wavelength/2

Isotropic Radiation Intensity

Go Isotropic Radiation Intensity = Radiated Power/(4*pi)

Total Input Power

Go Total Input Power = Radiated Power/Antenna Efficiency

Antenna Efficiency

Go Antenna Efficiency = Radiated Power/Total Input Power

Duct Height

Go Duct Height = (Maximum Duct Wavelength/0.014)^(2/3)

Maximum Duct Wavelength

Go Maximum Duct Wavelength = 0.014*Duct Height^(3/2)

Average Radiation Intensity Formula

Average Radiation Intensity = Radiation Intensity/Directivity of Antenna
R_avg = U/D_a

How is intensity of radiation measured?

One way to measure the intensity of x-rays or gamma rays is to measure the amount of ionization they cause in air. The amount of ionization in air produced by the radiation is called the exposure. Exposure is expressed in terms of a scientific unit called a roentgen (R or r).

How to Calculate Average Radiation Intensity?

Average Radiation Intensity calculator uses Average Radiation Intensity = Radiation Intensity/Directivity of Antenna to calculate the Average Radiation Intensity, The Average Radiation Intensity formula is defined as the average of the radiation intensity of the antenna. Average Radiation Intensity is denoted by R_avg symbol.

How to calculate Average Radiation Intensity using this online calculator? To use this online calculator for Average Radiation Intensity, enter Radiation Intensity (U) & Directivity of Antenna (D_a) and hit the calculate button. Here is how the Average Radiation Intensity calculation can be explained with given input values -> 3.375 = 27/0.08 .

FAQ

What is Average Radiation Intensity?

The Average Radiation Intensity formula is defined as the average of the radiation intensity of the antenna and is represented as R_avg = U/D_a or Average Radiation Intensity = Radiation Intensity/Directivity of Antenna. Radiation Intensity refers to the power radiated per unit solid angle by an antenna in a specific direction & Directivity of antenna measures the degree to which the radiation emitted is concentrated in a single direction.

How to calculate Average Radiation Intensity?

The Average Radiation Intensity formula is defined as the average of the radiation intensity of the antenna is calculated using Average Radiation Intensity = Radiation Intensity/Directivity of Antenna. To calculate Average Radiation Intensity, you need Radiation Intensity (U) & Directivity of Antenna (D_a). With our tool, you need to enter the respective value for Radiation Intensity & Directivity of Antenna and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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