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Parabolic Dish Antenna Gain (dBi) & Half-Power Beamwidth (HPBW) Calculator

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

Physical diameter of reflector.

Operating radio frequency.

Typical parabolic dish efficiency ~0.55 to 0.70.

Calculated Result
44.6 dBi

Antenna Gain

Antenna Gain

44.6 dBi

Antenna Gain Dbi

44.6

Half Power Beamwidth Deg

1.04

Effective Aperture Area M2

2.94

Operating Wavelength Mm

35.7

44.6 — dBi

Calculation Breakdown

  1. Applied FormulaCalculates the directive bore-sight gain (dBi) and half-power beamwidth (HPBW) of parabolic reflector dish antennas for ground tracking stations and spacecraft.G = \eta \left(\frac{\pi D}{\lambda}\right)^2, \quad \theta_{3\text{dB}} \approx 70^\circ \frac{\lambda}{D}

Parabolic Dish Gain & Beamwidth Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.011223345Antenna Gain

What Is the Parabolic Dish Antenna Gain (dBi) & Half-Power Beamwidth (HPBW) Calculator?

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

How Does the Parabolic Dish Antenna Gain (dBi) & Half-Power Beamwidth (HPBW) Calculator Work?

Calculates the directive bore-sight gain (dBi) and half-power beamwidth (HPBW) of parabolic reflector dish antennas for ground tracking stations and spacecraft.

Parabolic Dish Antenna Gain (dBi) & Half-Power Beamwidth (HPBW) Calculator Formula & Variables

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

G=η(πDλ)2,θ3dB≈70∘λDG = \eta \left(\frac{\pi D}{\lambda}\right)^2, \quad \theta_{3\text{dB}} \approx 70^\circ \frac{\lambda}{D}

Calculates the directive bore-sight gain (dBi) and half-power beamwidth (HPBW) of parabolic reflector dish antennas for ground tracking stations and spacecraft.

How to Use the Parabolic Dish Antenna Gain (dBi) & Half-Power Beamwidth (HPBW) 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) & Half-Power Beamwidth (HPBW) Calculator Example

Input Values:

dishDiameterMeters:2.4
carrierFrequencyGhz:8.4
apertureEfficiency:0.65
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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