Radar Antenna Beamwidth Calculator

By RF Wireless Expert Team

Last Updated: August 25, 2026

This tool calculates the beamwidth of a radar antenna. The formula used is provided below, along with an example.

Example Calculation

INPUTs:

OUTPUT:

The following formula is used to calculate radar antenna beamwidth:

Antenna Beamwidth = 70 * (λ/D)

Where:

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