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Parabolic Dish Antenna Gain (dBi) & Beamwidth Calculator

Easily calculate and compute parabolic dish antenna gain (dbi) & beamwidth calculator with accurate equations, live formulas, and expert guidance.

E.g. 10.5 GHz X-band satellite.

Standard parabolic feeds achieve 50% to 65% aperture efficiency.

Calculated Result
39.8 dBi

Parabolic Antenna Gain

Parabolic Antenna Gain

39.8 dBi

Antenna Gain Dbi

39.8

Half Power Beamwidth Degrees

1.7

Linear Power Gain

9575

39.8 — dBi

Calculation Breakdown

  1. Applied FormulaCalculates directional forward decibel gain and 3dB half-power beamwidth for parabolic dish antennas used in satellite and microwave communications.G = 10 \log_{10}\left(\eta \left(\dfrac{\pi D}{\lambda}\right)^2\right)

Parabolic Dish Gain Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.09.9203040Parabolic Antenna Gain

What Is the Parabolic Dish Antenna Gain (dBi) & Beamwidth Calculator?

This tool computes parabolic dish antenna gain (dbi) & beamwidth calculator with high precision arithmetic.

How Does the Parabolic Dish Antenna Gain (dBi) & Beamwidth Calculator Work?

Calculates directional forward decibel gain and 3dB half-power beamwidth for parabolic dish antennas used in satellite and microwave communications.

Parabolic Dish Antenna Gain (dBi) & Beamwidth Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

G=10log⁡10(η(πDλ)2)G = 10 \log_{10}\left(\eta \left(\dfrac{\pi D}{\lambda}\right)^2\right)

Calculates directional forward decibel gain and 3dB half-power beamwidth for parabolic dish antennas used in satellite and microwave communications.

How to Use the Parabolic Dish Antenna Gain (dBi) & Beamwidth Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Parabolic Dish Antenna Gain (dBi) & Beamwidth Calculator Example

Input Values:

dishDiameterMeters:1.2
operatingFrequencyGhz:10.5
apertureEfficiencyPercent:55
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required dBi.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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