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Focal Length of Reflector Formula

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Focal Length of Reflector refers to the distance from the vertex (the deepest point of the reflector) to the focal point. Check FAQs

f ref = (\frac{D^{2}}{16 \cdot c})

f_ref - Focal Length of Reflector?D - Parabolic Reflector Diameter?c - Depth of Parabola?

Focal Length of Reflector Example

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Here is how the Focal Length of Reflector equation looks like with Values.

Here is how the Focal Length of Reflector equation looks like with Units.

Here is how the Focal Length of Reflector equation looks like.

0.0469 = (\frac{3^{2}}{16 \cdot 12})

0.0469m = (\frac{{3m}^{2}}{16 \cdot 12m})

0.0469 = (\frac{3^{2}}{16 \cdot 12})

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Focal Length of Reflector Solution

Follow our step by step solution on how to calculate Focal Length of Reflector?

FIRST Step Consider the formula

f ref = (\frac{D^{2}}{16 \cdot c})

Next Step Substitute values of Variables

∴

f ref = (\frac{{3m}^{2}}{16 \cdot 12m})

Next Step Prepare to Evaluate

∴

f ref = (\frac{3^{2}}{16 \cdot 12})

Next Step Evaluate

∴

f ref = 0.046875m

LAST Step Rounding Answer

∴

f ref = 0.0469m

Focal Length of Reflector Formula Elements

Variables

Focal Length of Reflector

Focal Length of Reflector refers to the distance from the vertex (the deepest point of the reflector) to the focal point.

Symbol: f_ref

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Focal Length of Reflector

Parabolic Reflector Diameter

Parabolic Reflector Diameter refers to the width of the reflector from one edge to the opposite edge, passing through the center.

Symbol: D

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Parabolic Reflector Diameter

Depth of Parabola

The depth of parabola is a characteristic associated with parabolic reflector antennas, which affects their gain and beamwidth.

Symbol: c

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Depth of Parabola

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How to Evaluate Focal Length of Reflector?

Focal Length of Reflector evaluator uses Focal Length of Reflector = ((Parabolic Reflector Diameter^2)/(16*Depth of Parabola)) to evaluate the Focal Length of Reflector, Focal Length of Reflector refers to the distance from the vertex (the deepest point of the reflector) to the focal point. It is a critical parameter that characterizes the reflective properties of the surface and determines the degree of convergence or divergence of the reflected rays. Focal Length of Reflector is denoted by f_ref symbol.

How to evaluate Focal Length of Reflector using this online evaluator? To use this online evaluator for Focal Length of Reflector, enter Parabolic Reflector Diameter (D) & Depth of Parabola (c) and hit the calculate button.

FAQs on Focal Length of Reflector

What is the formula to find Focal Length of Reflector?

The formula of Focal Length of Reflector is expressed as Focal Length of Reflector = ((Parabolic Reflector Diameter^2)/(16*Depth of Parabola)). Here is an example- 0.046875 = ((3^2)/(16*12)).

How to calculate Focal Length of Reflector?

With Parabolic Reflector Diameter (D) & Depth of Parabola (c) we can find Focal Length of Reflector using the formula - Focal Length of Reflector = ((Parabolic Reflector Diameter^2)/(16*Depth of Parabola)).

Can the Focal Length of Reflector be negative?

No, the Focal Length of Reflector, measured in Length cannot be negative.

Which unit is used to measure Focal Length of Reflector?

Focal Length of Reflector is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Focal Length of Reflector can be measured.

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Focal Length of Reflector Formula

Focal Length of Reflector Example

Focal Length of Reflector Solution

Focal Length of Reflector Formula Elements

Other formulas in Transmission Line and Antenna Theory category

How to Evaluate Focal Length of Reflector?

FAQs on Focal Length of Reflector

Variable Name