Parabolic Antenna Calculator

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parabolic antenna
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This page provides a Parabolic Antenna calculator for determining key performance characteristics. The calculator determines the gain, half-power beamwidth, and effective aperture of a parabolic antenna.

It requires the operating frequency (in GHz) and the diameter of the dish as inputs.

Parabolic Antenna Calculator

Inputs

Outputs

This calculator computes gain, beamwidth, and aperture based on frequency and diameter inputs.

  • Inputs: Frequency (GHz), Diameter (meter)
  • Outputs: Gain (dB), Beamwidth (degrees), Aperture (meter2)

Parabolic Antenna Calculator Example

  • Inputs:
    • Frequency = 14.5 GHz
    • Diameter = 3.5 meter
  • Outputs:
    • Gain = 52.3 dB
    • Beamwidth = 0.35 degrees
    • Aperture = 5.77 meter2

Parabolic Antenna Calculator Equation

Parabolic dish antennas are commonly used worldwide as satellite TV channel receivers. They often employ a Cassegrain design, where a horn antenna is placed at the focal point of the dish.

Typically, these antennas have two reflectors: a sub-reflector and a main reflector. The signal to be transmitted is first emitted from the horn antenna, reflects off the sub-reflector, and then reflects off the parabolic dish main reflector.

The following equation/formula is used for the Parabolic Antenna calculator:

parabolic antenna calculator equation

Antenna Terminology Explained

Explore key antenna terms like gain, beamwidth, radiation pattern, efficiency, impedance, polarization, and more. Understand antenna characteristics and performance.

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rf
gain
Horn Antenna Calculator

Horn Antenna Calculator

Calculate horn antenna gain, vertical beamwidth, and horizontal beamwidth based on frequency, narrow dimension, and broad dimension.

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