Gain of Helical Antenna Calculator

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Special Antennas

Antenna Theory Parameters

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✖Helix circumference of an imaginary cylinder that the helix conductor is wound around expressed in wavelengths. The ideal value for a helical antenna is 1.0.ⓘ Helix Circumference [C_λ]			+10% -10%
✖Number Of Turns Of Helical Antenna is the number of identical parallel antennas are arranged along a line.ⓘ Number of Turns of Helical Antenna [n]			+10% -10%
✖Turn Spacing in the antenna is the spacing between each turn of the antenna.ⓘ Turn Spacing [S]			+10% -10%

✖Helical Antenna Gain is the maximum power gained by antenna.ⓘ Gain of Helical Antenna [G_a]

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Formula

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Gain of Helical Antenna

Formula

`"G"_{"a"} = 11.8+10*log10("C"_{"λ"}^2*"n"*"S")`

Example

`"33.12829dB"=11.8+10*log10(("0.8m")^2*"6.01"*"35.3m")`

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Gain of Helical Antenna Solution

STEP 0: Pre-Calculation Summary

Formula Used

Helical Antenna Gain = 11.8+10*log10(Helix Circumference^2*Number of Turns of Helical Antenna*Turn Spacing)
G_a = 11.8+10*log10(C_λ^2*n*S)
This formula uses 1 Functions, 4 Variables

Functions Used

log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)

Variables Used

Helical Antenna Gain - (Measured in Decibel) - Helical Antenna Gain is the maximum power gained by antenna.
Helix Circumference - (Measured in Meter) - Helix circumference of an imaginary cylinder that the helix conductor is wound around expressed in wavelengths. The ideal value for a helical antenna is 1.0.
Number of Turns of Helical Antenna - Number Of Turns Of Helical Antenna is the number of identical parallel antennas are arranged along a line.
Turn Spacing - (Measured in Meter) - Turn Spacing in the antenna is the spacing between each turn of the antenna.

STEP 1: Convert Input(s) to Base Unit

Helix Circumference: 0.8 Meter --> 0.8 Meter No Conversion Required
Number of Turns of Helical Antenna: 6.01 --> No Conversion Required
Turn Spacing: 35.3 Meter --> 35.3 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

G_a = 11.8+10*log10(C_λ^2*n*S) --> 11.8+10*log10(0.8^2*6.01*35.3)

Evaluating ... ...

G_a = 33.1282915137445

STEP 3: Convert Result to Output's Unit

33.1282915137445 Decibel --> No Conversion Required

FINAL ANSWER

33.1282915137445 ≈ 33.12829 Decibel <-- Helical Antenna Gain

(Calculation completed in 00.004 seconds)

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< 7 Helical Antennas Calculators

Beam Width between First Null (BWFN) of Helical Antenna

Go Helical Beam Width of First Null Broadside Array = 115*Helix Circumference^(3/2)/(Operational Circumference*sqrt(Turn Spacing*Number of Turns of Helical Antenna))

Gain of Helical Antenna

Go Helical Antenna Gain = 11.8+10*log10(Helix Circumference^2*Number of Turns of Helical Antenna*Turn Spacing)

Half-Power Beamwidth of Helical Antenna

Go Half Power Beam Width = 52/(Helix Circumference*sqrt(Number of Turns of Helical Antenna*Turn Spacing))

Pitch Angle of Helical Antenna

Go Pitch Angle = arctan(Turn Spacing/(pi*Helix Diameter))

Axial Ratio of Helical Antenna

Go Axial Ratio = ((2*Number of Turns of Helical Antenna)+1)/(2*Number of Turns of Helical Antenna)

Helix Circumference of Helical Antenna

Go Helix Circumference = Input Impedance/140

Input Impedance of Helical Antenna

Go Input Impedance = 140*Helix Circumference

Gain of Helical Antenna Formula

Helical Antenna Gain = 11.8+10*log10(Helix Circumference^2*Number of Turns of Helical Antenna*Turn Spacing)
G_a = 11.8+10*log10(C_λ^2*n*S)

How is helical antenna constructed?

Helical antenna or helix antenna is the antenna in which the conducting wire is wound in helical shape and connected to the ground plate with a feeder line.

How to Calculate Gain of Helical Antenna?

Gain of Helical Antenna calculator uses Helical Antenna Gain = 11.8+10*log10(Helix Circumference^2*Number of Turns of Helical Antenna*Turn Spacing) to calculate the Helical Antenna Gain, The Gain of Helical Antenna formula in a given direction is defined as the ratio of the intensity, in a given direction, and the radiation intensity that would be obtained if the power accepted by the antenna were radiated iso tropically. Helical Antenna Gain is denoted by G_a symbol.

How to calculate Gain of Helical Antenna using this online calculator? To use this online calculator for Gain of Helical Antenna, enter Helix Circumference (C_λ), Number of Turns of Helical Antenna (n) & Turn Spacing (S) and hit the calculate button. Here is how the Gain of Helical Antenna calculation can be explained with given input values -> 33.12106 = 11.8+10*log10(0.8^2*number_of_turns_awp*35.3).

FAQ

What is Gain of Helical Antenna?

The Gain of Helical Antenna formula in a given direction is defined as the ratio of the intensity, in a given direction, and the radiation intensity that would be obtained if the power accepted by the antenna were radiated iso tropically and is represented as G_a = 11.8+10*log10(C_λ^2*n*S) or Helical Antenna Gain = 11.8+10*log10(Helix Circumference^2*Number of Turns of Helical Antenna*Turn Spacing). Helix circumference of an imaginary cylinder that the helix conductor is wound around expressed in wavelengths. The ideal value for a helical antenna is 1.0, Number Of Turns Of Helical Antenna is the number of identical parallel antennas are arranged along a line & Turn Spacing in the antenna is the spacing between each turn of the antenna.

How to calculate Gain of Helical Antenna?

The Gain of Helical Antenna formula in a given direction is defined as the ratio of the intensity, in a given direction, and the radiation intensity that would be obtained if the power accepted by the antenna were radiated iso tropically is calculated using Helical Antenna Gain = 11.8+10*log10(Helix Circumference^2*Number of Turns of Helical Antenna*Turn Spacing). To calculate Gain of Helical Antenna, you need Helix Circumference (C_λ), Number of Turns of Helical Antenna (n) & Turn Spacing (S). With our tool, you need to enter the respective value for Helix Circumference, Number of Turns of Helical Antenna & Turn Spacing 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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