Radar Antenna Beamwidth Calculator

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

Example Calculation

INPUTs:

• Antenna Diameter = 5 meters
• Radar Frequency = 10 GHz

OUTPUT:

• Radar Beamwidth = 0.42 degrees

Radar Beamwidth Formula

The following formula is used to calculate radar antenna beamwidth:

Antenna Beamwidth = 70 * (λ/D)

Where:

• D = Diameter of Antenna
• λ = Wavelength (calculated as c/frequency)
• c = Speed of Light (approximately 3 x 10⁸ meters per second)