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Radiation Efficiency of Antenna Calculator

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Electromagnetic Radiation and Antennas Electrowave Dynamics

✖Maximum Gain represents the highest possible increase in power achieved by the system compared to a reference case.ⓘ Maximum Gain [G]			+10% -10%
✖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.ⓘ Maximum Directivity [D_max]			+10% -10%

✖Radiation Efficiency of Antenna refers to how effectively an antenna converts the radio-frequency (RF) power it receives into radiated power.ⓘ Radiation Efficiency of Antenna [η_r]

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Radiation Efficiency of Antenna Solution

STEP 0: Pre-Calculation Summary

Formula Used

Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity
η_r = G/D_max
This formula uses 3 Variables

Variables Used

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.
Maximum Gain - Maximum Gain represents the highest possible increase in power achieved by the system compared to a reference case.
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.

STEP 1: Convert Input(s) to Base Unit

Maximum Gain: 9.7 --> No Conversion Required
Maximum Directivity: 3.2 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_r = G/D_max --> 9.7/3.2

Evaluating ... ...

η_r = 3.03125

STEP 3: Convert Result to Output's Unit

3.03125 --> No Conversion Required

FINAL ANSWER

3.03125 <-- Radiation Efficiency of Antenna

(Calculation completed in 00.004 seconds)

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Created by Gowthaman N

Vellore Institute of Technology (VIT University), Chennai

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Chandigarh University (CU), Punjab

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< Electromagnetic Radiation and Antennas Calculators

Poynting Vector Magnitude

LaTeX Go Poynting Vector = 1/2*((Dipole Current*Wavenumber*Source Distance)/(4*pi))^2*Intrinsic Impedance*(sin(Polar Angle))^2

Radiation Efficiency of Antenna

LaTeX Go Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity

Average Power

LaTeX Go Average Power = 1/2*Sinusoidal Current^2*Radiation Resistance

Radiation Resistance of Antenna

LaTeX Go Radiation Resistance = 2*Average Power/Sinusoidal Current^2

Radiation Efficiency of Antenna Formula

LaTeX Go

Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity
η_r = G/D_max

In a perfect system with no energy loss, can efficiency ever be greater than 100%?

Even if a system is perfect, it can't radiate more power than it gets. Its radiation efficiency can reach 100% (all input focused in one direction), but never exceed it.

How to Calculate Radiation Efficiency of Antenna?

Radiation Efficiency of Antenna calculator uses Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity to calculate 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 η_r symbol.

How to calculate Radiation Efficiency of Antenna using this online calculator? To use this online calculator for Radiation Efficiency of Antenna, enter Maximum Gain (G) & Maximum Directivity (D_max) and hit the calculate button. Here is how the Radiation Efficiency of Antenna calculation can be explained with given input values -> 3.03125 = 9.7/3.2.

FAQ

What is 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 and is represented as η_r = G/D_max or Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity. Maximum Gain represents the highest possible increase in power achieved by the system compared to a reference case & 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.

How to calculate 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 is calculated using Radiation Efficiency of Antenna = Maximum Gain/Maximum Directivity. To calculate Radiation Efficiency of Antenna, you need Maximum Gain (G) & Maximum Directivity (D_max). With our tool, you need to enter the respective value for Maximum Gain & Maximum Directivity 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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