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Parabolic Dish Antenna Gain, Beamwidth & EIRP Calculator

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

Calculated Result
47.38 dBi

Boresight Antenna Gain G

Boresight Antenna Gain G

47.38 dBi

Gain Dbi

47.4

Beamwidth Deg

0.73

Eirp Dbw

64.4

Eirp Watts

2732528

47.38 — dBi

Calculation Breakdown

  1. Applied FormulaCalculates the parabolic dish reflector antenna boresight gain (dBi), half-power 3dB beamwidth (HPBW), and Effective Isotropic Radiated Power (EIRP).G = \eta \left(\frac{\pi D}{\lambda}\right)^2, \quad \theta_{\text{HPBW}} = 70^\circ \frac{\lambda}{D}, \quad \text{EIRP} = P_{\text{tx}} + G

Parabolic Antenna Gain & EIRP Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.012243647Boresight Antenna Gain G

What Is the Parabolic Dish Antenna Gain, Beamwidth & EIRP Calculator?

This tool computes parabolic dish antenna gain, beamwidth & eirp calculator with high precision arithmetic.

How Does the Parabolic Dish Antenna Gain, Beamwidth & EIRP Calculator Work?

Calculates the parabolic dish reflector antenna boresight gain (dBi), half-power 3dB beamwidth (HPBW), and Effective Isotropic Radiated Power (EIRP).

Parabolic Dish Antenna Gain, Beamwidth & EIRP Calculator Formula & Variables

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

G=η(πDλ)2,θHPBW=70∘λD,EIRP=Ptx+GG = \eta \left(\frac{\pi D}{\lambda}\right)^2, \quad \theta_{\text{HPBW}} = 70^\circ \frac{\lambda}{D}, \quad \text{EIRP} = P_{\text{tx}} + G

Calculates the parabolic dish reflector antenna boresight gain (dBi), half-power 3dB beamwidth (HPBW), and Effective Isotropic Radiated Power (EIRP).

How to Use the Parabolic Dish Antenna Gain, Beamwidth & EIRP Calculator

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

Step-by-Step Example Calculation

Parabolic Dish Antenna Gain, Beamwidth & EIRP Calculator Example

Input Values:

dishDiameterM:2.4
frequencyGhz:12
efficiencyPct:60
txPowerWatts:50
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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