Antenna Radiation Pattern Visualizer

Explore patterns with presets and controls. View a 2D polar plot and a 3D-style dome preview. Share links only when you click Share.

How to Use

  1. Pick a preset (Dipole, Monopole, Loop, Patch-like) or start from Custom.
  2. Adjust controls (pattern sharpness, tilt, null depth, sidelobes) to shape the plot.
  3. Use “View” to switch Polar / Dome / Both and choose plane (E-plane/H-plane).
  4. Open “Show Work” to see the synthetic model and normalization details.
Pattern View
Normalized field magnitude (0–1). This is a visualizer model, not an EM solver.
Preset
—
Plane
—
Peak
—
Null
—
2D Polar Plot
Angle θ (0–360°). Radius = normalized magnitude.
3D-style Dome Preview
A quick dome visualization from the same normalized data.
Inputs & Settings
Adjust the synthetic pattern model. This tool is for intuition and visuals (not a full-field solver).
Optional (for reference labels). Pattern stays normalized.
Sets the starting radiation shape before modifiers.
Higher = narrower lobes. (Exponent shaping)
Rotates the pattern in the selected plane.
0 = none, 1 = deep nulls (suppresses certain angles).
Adds ripple to mimic sidelobes (visual intuition).
Quick Adjust
1.0
0°

Tip: Use sliders for fast “what-if” changes. Use inputs for precise values.

Show Work (model details)
—
This tool uses a synthetic pattern model for visualization and intuition. It is not a substitute for a full EM simulation or measured antenna patterns.

Reference

  • E-plane / H-plane: Common 2D slices through a 3D pattern (depends on antenna and coordinate choice).
  • Normalization: Often patterns are shown normalized to the peak value (0 dB at max).
  • dB scale: A log view makes sidelobes and nulls easier to see.
UB note: Visualizer is intended for education and fast intuition checks, not compliance-grade engineering.

FAQ

Is this an EM solver?

No. It uses a synthetic, adjustable model so you can visualize typical shapes quickly without heavy computation.

Why do patterns look “normalized”?

Many published plots set the maximum radiation to 1 (or 0 dB) so the overall shape is easy to compare.

What does dB scale do?

It converts magnitude to a log view (relative to peak), so weaker lobes and deep nulls are more visible.

Can I share what I’m seeing?

Yes. Use the Share button in the rail to generate a URL with your settings. The URL never changes while you interact.

Tool Info

Last updated:

Updates may include plot rendering improvements, more presets, and edge-case handling.