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Return Loss of Low-Noise Amplifier Formula

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Return Loss is a measure of the amount of signal power reflected back from a load or discontinuity in a transmission line or optical fiber. Check FAQs

Γ = mod \underset{̲}{u} s {(\frac{Z in - R s}{Z in + R s})}^{2}

Γ - Return Loss?Z_in - Input Impedance?R_s - Source Impedance?

Return Loss of Low-Noise Amplifier Example

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Here is how the Return Loss of Low-Noise Amplifier equation looks like with Values.

Here is how the Return Loss of Low-Noise Amplifier equation looks like with Units.

Here is how the Return Loss of Low-Noise Amplifier equation looks like.

0.8301 = mod \underset{̲}{u} s {(\frac{1.07 - 23}{1.07 + 23})}^{2}

0.8301dB = mod \underset{̲}{u} s {(\frac{1.07Ω - 23Ω}{1.07Ω + 23Ω})}^{2}

0.8301 = mod \underset{̲}{u} s {(\frac{1.07 - 23}{1.07 + 23})}^{2}

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Return Loss of Low-Noise Amplifier Solution

Follow our step by step solution on how to calculate Return Loss of Low-Noise Amplifier?

FIRST Step Consider the formula

Γ = mod \underset{̲}{u} s {(\frac{Z in - R s}{Z in + R s})}^{2}

Next Step Substitute values of Variables

∴

Γ = mod \underset{̲}{u} s {(\frac{1.07Ω - 23Ω}{1.07Ω + 23Ω})}^{2}

Next Step Prepare to Evaluate

∴

Γ = mod \underset{̲}{u} s {(\frac{1.07 - 23}{1.07 + 23})}^{2}

Next Step Evaluate

∴

Γ = 0.830089810411366dB

LAST Step Rounding Answer

∴

Γ = 0.8301dB

Return Loss of Low-Noise Amplifier Formula Elements

Variables

Functions

Return Loss

Return Loss is a measure of the amount of signal power reflected back from a load or discontinuity in a transmission line or optical fiber.

Symbol: Γ

Measurement: NoiseUnit: dB

Note: Value should be greater than 0.

Formulas to find Return Loss

Input Impedance

Input Impedance is the opposition to current flow into an electrical circuit when a voltage is applied to its input terminals.

Symbol: Z_in

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Input Impedance

Source Impedance

Source Impedance is the opposition to current flow that the source presents to the load.

Symbol: R_s

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Source Impedance

modulus

Modulus of a number is the remainder when that number is divided by another number.

Syntax: modulus

Other formulas in RF Microelectronics category

Go Voltage Gain of Low Noise Amplifier

A v = g m \cdot R d

Go Voltage Gain of Low Noise Amplifier given DC Voltage Drop

A v = 2 \cdot \frac{V rd}{V gs - V th}

Go Output Impedance of Low Noise Amplifier

R out = (\frac{1}{2}) \cdot (R f + R s)

Go Transconductance of Low Noise Amplifier

g m = \frac{2 \cdot I d}{V gs - V th}

How to Evaluate Return Loss of Low-Noise Amplifier?

Return Loss of Low-Noise Amplifier evaluator uses Return Loss = modulus((Input Impedance-Source Impedance)/(Input Impedance+Source Impedance))^2 to evaluate the Return Loss, The Return Loss of Low-Noise Amplifier formula is defined as a measure of how well the amplifier matches the impedance of the source and load. A good impedance match is important for minimizing signal reflection and maximizing power transfer. Return Loss is denoted by Γ symbol.

How to evaluate Return Loss of Low-Noise Amplifier using this online evaluator? To use this online evaluator for Return Loss of Low-Noise Amplifier, enter Input Impedance (Z_in) & Source Impedance (R_s) and hit the calculate button.

FAQs on Return Loss of Low-Noise Amplifier

What is the formula to find Return Loss of Low-Noise Amplifier?

The formula of Return Loss of Low-Noise Amplifier is expressed as Return Loss = modulus((Input Impedance-Source Impedance)/(Input Impedance+Source Impedance))^2. Here is an example- 0.828644 = modulus((1.07-23)/(1.07+23))^2.

How to calculate Return Loss of Low-Noise Amplifier?

With Input Impedance (Z_in) & Source Impedance (R_s) we can find Return Loss of Low-Noise Amplifier using the formula - Return Loss = modulus((Input Impedance-Source Impedance)/(Input Impedance+Source Impedance))^2. This formula also uses Modulus (modulus) function(s).

Can the Return Loss of Low-Noise Amplifier be negative?

No, the Return Loss of Low-Noise Amplifier, measured in Noise cannot be negative.

Which unit is used to measure Return Loss of Low-Noise Amplifier?

Return Loss of Low-Noise Amplifier is usually measured using the Decibel[dB] for Noise. Neper[dB], MilliDecibel[dB] are the few other units in which Return Loss of Low-Noise Amplifier can be measured.

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Return Loss of Low-Noise Amplifier Formula

Return Loss of Low-Noise Amplifier Example

Return Loss of Low-Noise Amplifier Solution

Return Loss of Low-Noise Amplifier Formula Elements

Other formulas in RF Microelectronics category

How to Evaluate Return Loss of Low-Noise Amplifier?

FAQs on Return Loss of Low-Noise Amplifier

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