Voltage Standing Wave Ratio (VSWR) Calculator

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Transmission Line Characteristics

Transmission Line & Antenna Theory

✖Reflection coefficient refers to a parameter that describes the behavior of waves at the interface between different media or at the termination of a transmission line.ⓘ Reflection Coefficient [Γ]

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✖Voltage Standing wave ratio is the ratio of maximum and minimum magnitude of voltage on a line having on a line having standing waves.ⓘ Voltage Standing Wave Ratio (VSWR) [VSWR]

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Formula

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Voltage Standing Wave Ratio (VSWR)

Formula

`"VSWR" = (1+"Γ")/(1-"Γ")`

Example

`"3.347826"=(1+"0.54")/(1-"0.54")`

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Voltage Standing Wave Ratio (VSWR) Solution

STEP 0: Pre-Calculation Summary

Formula Used

Voltage Standing Wave Ratio = (1+Reflection Coefficient)/(1-Reflection Coefficient)
VSWR = (1+Γ)/(1-Γ)
This formula uses 2 Variables

Variables Used

Voltage Standing Wave Ratio - Voltage Standing wave ratio is the ratio of maximum and minimum magnitude of voltage on a line having on a line having standing waves.
Reflection Coefficient - Reflection coefficient refers to a parameter that describes the behavior of waves at the interface between different media or at the termination of a transmission line.

STEP 1: Convert Input(s) to Base Unit

Reflection Coefficient: 0.54 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

VSWR = (1+Γ)/(1-Γ) --> (1+0.54)/(1-0.54)

Evaluating ... ...

VSWR = 3.34782608695652

STEP 3: Convert Result to Output's Unit

3.34782608695652 --> No Conversion Required

FINAL ANSWER

3.34782608695652 ≈ 3.347826 <-- Voltage Standing Wave Ratio

(Calculation completed in 00.004 seconds)

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Credits

Created by Vidyashree V

BMS College of Engineering (BMSCE), Bangalore

Vidyashree V has created this Calculator and 25+ more calculators!

Verified by Saiju Shah

Jayawantrao Sawant College of Engineering (JSCOE), Pune

Saiju Shah has verified this Calculator and 25+ more calculators!

< 15 Transmission Line Characteristics Calculators

Reflection Coefficient in Transmission Line

Go Reflection Coefficient = (Load Impedance of Transmission Line-Characteristics Impedance of Transmission Line)/(Load Impedance of Transmission Line+Characteristics Impedance of Transmission Line)

Resistance at Second Temperature

Go Final Resistance = Initial Resistance*((Temperature Coefficient+Final Temperature)/(Temperature Coefficient+Initial Temperature))

Impedance Matching in Single Section Quarter Wave Line

Go Characteristics Impedance of Transmission Line = sqrt(Load Impedance of Transmission Line*Source Impedance)

Insertion Loss in Transmission Line

Go Insertion Loss = 10*log10(Power Transmitted Before Insertion/Power Received After Insertion)

Return Loss by Means of VSWR

Go Return Loss = 20*log10((Voltage Standing Wave Ratio+1)/(Voltage Standing Wave Ratio-1))

Bandwidth of Antenna

Go Bandwidth of Antenna = 100*((Highest Frequency-Lowest Frequency)/Centre Frequency)

Length of Wound Conductor

Go Length of Wound Conductor = sqrt(1+(pi/Relative Pitch of Wound Conductor)^2)

Characteristic Impedance of Transmission Line

Go Characteristics Impedance of Transmission Line = sqrt(Inductance/Capacitance)

Voltage Standing Wave Ratio (VSWR)

Go Voltage Standing Wave Ratio = (1+Reflection Coefficient)/(1-Reflection Coefficient)

Conductance of Distortionless Line

Go Conductance = (Resistance*Capacitance)/Inductance

Relative Pitch of Wound Conductor

Go Relative Pitch of Wound Conductor = (Length of Spiral/(2*Radius of Layer))

Current Standing Wave Ratio (CSWR)

Go Current Standing Wave Ratio = Current Maxima/Current Minima

Standing Wave Ratio

Go Standing Wave Ratio (SWR) = Voltage Maxima/Voltage Minima

Wavelength of Line

Go Wavelength = (2*pi)/Propagation Constant

Phase Velocity in Transmission Lines

Go Phase Velocity = Wavelength*Frequency

Voltage Standing Wave Ratio (VSWR) Formula

Voltage Standing Wave Ratio = (1+Reflection Coefficient)/(1-Reflection Coefficient)
VSWR = (1+Γ)/(1-Γ)

How are VSWR and reflection coefficient related?

A wave is partly reflected when a transmission line is terminated with an impedance unequal to its characteristic impedance. Reflection coefficient is a complex number that describes both the magnitude and the phase shift of the reflection and it directly corresponds to VSWR.

How to Calculate Voltage Standing Wave Ratio (VSWR)?

Voltage Standing Wave Ratio (VSWR) calculator uses Voltage Standing Wave Ratio = (1+Reflection Coefficient)/(1-Reflection Coefficient) to calculate the Voltage Standing Wave Ratio, The Voltage Standing Wave Ratio (VSWR) formula is defined as the ratio of maximum to minimum magnitudes of voltage or current on a line having standing waves and can be represented with respect to Reflection Coefficient. VSWR terms of reflection coefficient, is a measure of impedance matching of loads to the characteristic impedance of a transmission line. Voltage Standing Wave Ratio is denoted by VSWR symbol.

How to calculate Voltage Standing Wave Ratio (VSWR) using this online calculator? To use this online calculator for Voltage Standing Wave Ratio (VSWR), enter Reflection Coefficient (Γ) and hit the calculate button. Here is how the Voltage Standing Wave Ratio (VSWR) calculation can be explained with given input values -> 3.347826 = (1+0.54)/(1-0.54).

FAQ

What is Voltage Standing Wave Ratio (VSWR)?

The Voltage Standing Wave Ratio (VSWR) formula is defined as the ratio of maximum to minimum magnitudes of voltage or current on a line having standing waves and can be represented with respect to Reflection Coefficient. VSWR terms of reflection coefficient, is a measure of impedance matching of loads to the characteristic impedance of a transmission line and is represented as VSWR = (1+Γ)/(1-Γ) or Voltage Standing Wave Ratio = (1+Reflection Coefficient)/(1-Reflection Coefficient). Reflection coefficient refers to a parameter that describes the behavior of waves at the interface between different media or at the termination of a transmission line.

How to calculate Voltage Standing Wave Ratio (VSWR)?

The Voltage Standing Wave Ratio (VSWR) formula is defined as the ratio of maximum to minimum magnitudes of voltage or current on a line having standing waves and can be represented with respect to Reflection Coefficient. VSWR terms of reflection coefficient, is a measure of impedance matching of loads to the characteristic impedance of a transmission line is calculated using Voltage Standing Wave Ratio = (1+Reflection Coefficient)/(1-Reflection Coefficient). To calculate Voltage Standing Wave Ratio (VSWR), you need Reflection Coefficient (Γ). With our tool, you need to enter the respective value for Reflection Coefficient 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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