Polarscope

POLARSCOPE

Antenna Radiation Pattern Visualizer

FAR-FIELD 3D · RF ENGINEERING TOOL

by Jack
        Mitchell — M7PXZ

About

Features

Controls

Links

Changelog

A real-time 3D antenna radiation pattern simulator built entirely in the browser. Visualise far-field patterns, compare antennas side-by-side, and explore wave propagation — all powered by physics-based electromagnetic models.

No installation required. No data leaves your device.

v1.0 · Powered By Physics · Built with Plotly.js

📡

Antenna Radiation Pattern Visualizer

by Jack Mitchell — M7PXZ

Far-Field 3D · RF Engineering Tool · Powered By Physics

f = λ=2.05m 2m

Window 1 Dipole

EDIT MODE

Azimuth°

Elevation°

Length

Units

ELEMENTS — type value + Enter or live as you type

Antenna Type

Parameters Hold ALT + drag for ×5 snap

Element Length (L)0.50λ

Element Diameter2.0mm / 0.0010λ

Feedpoint Gap0.0mm

Azimuth rotate0°

Elevation tilt0°

End-Fed

Half-angle (α)45°

ReflectorOff

Refl. spacing0.25λ

Refl. tilt0°

Radials (n)4

Radial droop°0°

Loading coil Enable

Matching

Directors (n)3

ReflectorYes

Refl. spacing0.20λ

Orientation Vertical

Units

Element shape

Boom cross-section

Boom diam (mm)20

Boom length0.32λ

Elem. mount

ReflectorYes

Refl. spacing0.25λ

Refl. tilt0°

Turns1

Elements (n)4

            Element Length = Circumference

Turns4

Pitch angle12°

Antenna Elements (NEC-2)

Vertical

Balun / Choke

Type

Display Mode

Colormap

Overlays

Radiation Lobe

Wireframe

Antenna Geometry

Current Distribution

Current Arcs

Feedpoints

Polar Slice Panel

Wave Propagation

SWR Graph

Take-Off Angle

Lobe opacity100%

Height Above Ground

Show ground

Height2.4λ

ConductivityMedium

Structure

Quick Presets

Computed Metrics

Peak Gain

—

HPBW

—

TOA

—

F/B ratio

—

Nulls θ

—

Physics Engine

Heuristic (Fast)

U(θ,φ) — Dipole · Total Gain

—

NEC‑2 SOLVING

SWR SWEEP

-Y

-X

-Z

ISO

Drag: orbit · CTRL+drag: pan · Scroll/ALT: zoom

Gain (dBi)

— — — — — —

dBi