Antenna Radiation Visualizer

Orbit a live antenna model and watch its three-dimensional radiation pattern change with frequency, length and height.

Educational simulation. This model uses a simplified physical approximation. Treat the figures as an illustration of the principle, not as a prediction for a real installation. Real antennas must be built and sited in accordance with local regulations and the instructions for the equipment.

Drag to orbit · scroll to zoom

Static reference view

The interactive model needs WebGL, which this browser is not providing. The reference drawing below shows the same arrangement.

Antenna Radiation Visualizer static reference drawing

What it teaches

How a dipole produces a figure-of-eight pattern and a vertical produces a low-angle doughnut.
Why raising an antenna lowers its take-off angle and improves long-distance performance.
How a Yagi concentrates energy into a forward lobe and creates a null to the rear.
Why gain and beam width trade against each other as you add elements.

What it reports

Gain in dBiTake-off angleFront-to-back ratio3 dB beam widthSWR curve

Controls

Antenna typeFrequencyElement lengthHeight above groundGround type

Performance and access

The 3D library loads only on this page, never on the home page or the reference pages. If WebGL is unavailable the tool falls back to a static reference drawing with the same parameters. On a small screen the static view is shown first, with a button to load the interactive version. Reduced-motion preferences stop automatic rotation and animation.

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Transceivers & Antennas Feedline & Connectors Power & Grounding Test Equipment Operating & Logging

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