Radiation Efficiency of Antenna Formula

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Radiation Efficiency of Antenna refers to how effectively an antenna converts the radio-frequency (RF) power it receives into radiated power. Check FAQs
ηr=GDmax
ηr - Radiation Efficiency of Antenna?G - Maximum Gain?Dmax - Maximum Directivity?

Radiation Efficiency of Antenna Example

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With units
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Here is how the Radiation Efficiency of Antenna equation looks like with Values.

Here is how the Radiation Efficiency of Antenna equation looks like with Units.

Here is how the Radiation Efficiency of Antenna equation looks like.

3.0312Edit=9.7Edit3.2Edit
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Radiation Efficiency of Antenna Solution

Follow our step by step solution on how to calculate Radiation Efficiency of Antenna?

FIRST Step Consider the formula
ηr=GDmax
Next Step Substitute values of Variables
ηr=9.73.2
Next Step Prepare to Evaluate
ηr=9.73.2
Next Step Evaluate
ηr=3.03125
LAST Step Rounding Answer
ηr=3.0312

Radiation Efficiency of Antenna Formula Elements

Variables
Radiation Efficiency of Antenna
Radiation Efficiency of Antenna refers to how effectively an antenna converts the radio-frequency (RF) power it receives into radiated power.
Symbol: ηr
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Maximum Gain
Maximum Gain represents the highest possible increase in power achieved by the system compared to a reference case.
Symbol: G
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Maximum Directivity
Maximum Directivity represents the sharpness or concentration of the radiated beam. It's a measure of how tightly the system confines its radiation within a specific solid angle.
Symbol: Dmax
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other formulas in Electromagnetic Radiation and Antennas category

​Go Radiation Resistance of Antenna
Rrad=2Prio2
​Go Average Power
Pr=12io2Rrad
​Go Poynting Vector Magnitude
Sr=12(Idkd4π)2η(sin(θ))2
​Go Magnetic Field for Hertzian Dipole
HΦ=(1r)2(cos(2πrλ)+2πrλsin(2πrλ))

How to Evaluate Radiation Efficiency of Antenna?

Radiation Efficiency of Antenna evaluator uses Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity to evaluate the Radiation Efficiency of Antenna, Radiation Efficiency of Antenna is the ratio of its radiated power to the input power from the transmitter, accounting for losses due to resistance, mismatch, and other factors. Radiation Efficiency of Antenna is denoted by ηr symbol.

How to evaluate Radiation Efficiency of Antenna using this online evaluator? To use this online evaluator for Radiation Efficiency of Antenna, enter Maximum Gain (G) & Maximum Directivity (Dmax) and hit the calculate button.

FAQs on Radiation Efficiency of Antenna

What is the formula to find Radiation Efficiency of Antenna?
The formula of Radiation Efficiency of Antenna is expressed as Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity. Here is an example- 3.03125 = 9.7/3.2.
How to calculate Radiation Efficiency of Antenna?
With Maximum Gain (G) & Maximum Directivity (Dmax) we can find Radiation Efficiency of Antenna using the formula - Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity.
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