Radiation Intensity Calculator

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Antenna Theory Parameters

Special Antennas

Wave Propagation

✖Isotropic Radiation Intensity refers to the radiation intensity of an idealized isotropic radiator.ⓘ Isotropic Radiation Intensity [U_o]			+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%

✖Radiation Intensity refers to the power radiated per unit solid angle by an antenna in a specific direction.ⓘ Radiation Intensity [U]

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Formula

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Radiation Intensity

Formula

`"U" = "U"_{"o"}*"D"_{"a"}`

Example

`"0.0072W/sr"="0.09W/sr"*"0.08"`

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Radiation Intensity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna
U = U_o*D_a
This formula uses 3 Variables

Variables Used

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.
Isotropic Radiation Intensity - (Measured in Watt per Steradian) - Isotropic Radiation Intensity refers to the radiation intensity of an idealized isotropic radiator.
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

Isotropic Radiation Intensity: 0.09 Watt per Steradian --> 0.09 Watt per Steradian No Conversion Required
Directivity of Antenna: 0.08 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

U = U_o*D_a --> 0.09*0.08

Evaluating ... ...

U = 0.0072

STEP 3: Convert Result to Output's Unit

0.0072 Watt per Steradian --> No Conversion Required

FINAL ANSWER

0.0072 Watt per Steradian <-- 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)

Strength of Ground Wave

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

Antenna Current

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

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

Power Per Unit Bandwidth

Go Power per Unit = Thermal Resistance*Resistor Absolute Temperature

Total Antenna Resistance

Go Total Antenna Resistance = Ohmic Resistance+Radiation Resistance

Radiation Resistance

Go Radiation Resistance = Total Antenna Resistance-Ohmic Resistance

Ohmic Resistance

Go Ohmic Resistance = Total Antenna 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)

Antenna Efficiency

Go Antenna Efficiency = Radiated Power/Total Input Power

Total Input Power

Go Total Input Power = Radiated Power/Antenna Efficiency

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)

Radiation Intensity Formula

Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna
U = U_o*D_a

What affects radiation intensity?

The intensity of the solar radiation at a given location depends on your latitude, terrain, season, time of day, and atmospheric conditions. For example, clouds, dust, and water vapor all affect the amount of radiation that reaches the surface at any given location.

How to Calculate Radiation Intensity?

Radiation Intensity calculator uses Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna to calculate the Radiation Intensity, Radiation Intensity formula refers to the power radiated per unit solid angle by an antenna in a specific direction. It quantifies the power density of the electromagnetic waves being radiated by the antenna in a particular direction and is measured in watts per steradian (W/sr). Radiation Intensity is denoted by U symbol.

How to calculate Radiation Intensity using this online calculator? To use this online calculator for Radiation Intensity, enter Isotropic Radiation Intensity (U_o) & Directivity of Antenna (D_a) and hit the calculate button. Here is how the Radiation Intensity calculation can be explained with given input values -> 0.2164 = 0.09*0.08.

FAQ

What is Radiation Intensity?

Radiation Intensity formula refers to the power radiated per unit solid angle by an antenna in a specific direction. It quantifies the power density of the electromagnetic waves being radiated by the antenna in a particular direction and is measured in watts per steradian (W/sr) and is represented as U = U_o*D_a or Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna. Isotropic Radiation Intensity refers to the radiation intensity of an idealized isotropic radiator & Directivity of antenna measures the degree to which the radiation emitted is concentrated in a single direction.

How to calculate Radiation Intensity?

Radiation Intensity formula refers to the power radiated per unit solid angle by an antenna in a specific direction. It quantifies the power density of the electromagnetic waves being radiated by the antenna in a particular direction and is measured in watts per steradian (W/sr) is calculated using Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna. To calculate Radiation Intensity, you need Isotropic Radiation Intensity (U_o) & Directivity of Antenna (D_a). With our tool, you need to enter the respective value for Isotropic 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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