Antenna Gain
Estimate peak gain for a circular parabolic reflector from aperture size, carrier frequency, and aperture efficiency. The model is useful for first-pass satellite and telemetry link budgets.
Gain
40.98 dBi
12,524 linear
Wavelength
0.0250 m
12.000 GHz carrier
Half-power beamwidth
1.46 deg
Approximate 3 dB beamwidth
First-null beamwidth
2.91 deg
Circular aperture estimate
Reflector beam geometry
aperture concentrates energy into a main lobe
Open Source and Easy to Use Elsewhere
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
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