Antennas
Antenna Calculators
Antenna design calculators and interactive visualisers — from a simple dipole to a full 2D phased array. Gain, beamwidth, element dimensions and radiation patterns for every common antenna type.
Printed Antenna Layout Generator ★ NEW
Pick from 33 printed antennas: patches, slots, MIFA, arrays, dipoles, Yagi and more. SVG, DXF and Gerber export.
Dipole / Monopole
Half-wave dipole and quarter-wave monopole length for any frequency. Feed impedance, bandwidth and radiation resistance.
Patch Antenna
Rectangular microstrip patch — width, length, inset feed, bandwidth and gain. Substrate presets for FR4, Rogers RO4350B and Duroid.
Yagi-Uda Antenna
Element lengths and spacings for 3 to 16 element Yagi. Gain, front-to-back ratio, HPBW and polar pattern. Based on Viezbicke optimised design tables.
Horn Antenna
Pyramidal, E-plane and H-plane sectoral horns. Gain, HPBW, phase error, slant lengths and optimum horn finder for maximum gain. X, Ku and Ka-band presets.
Parabolic Dish
Dish diameter and frequency to gain, HPBW, aperture efficiency, focal length, f/D ratio and G/T. Presets for Ku VSAT, Ka-band and S-band radar.
Gain & Beamwidth Calculator ★ NEW
Shape-agnostic aperture calculator for circular, square and rectangular antennas. Solve forward for gain and beamwidth, or backward for the aperture size you need to hit a target.
Sparse & Faulty Array Simulator
Per-element amplitude, phase and active/failed control for linear and rectangular arrays up to 32 elements. Beam steering, amplitude tapering, failure injection and phase noise. Polar and Cartesian pattern with ideal vs actual comparison.
ULA / URA Array Patterns
Interactive beam pattern visualiser for linear and rectangular arrays. Beam scanning, amplitude tapering, grating lobe detection, HPBW and SLL metrics.
3D Pattern Visualizer
Rotate the full 3D radiation pattern for dipole, monopole, loop and patch antennas, then take theta/phi cuts as polar and rectangular plots. Built for teaching 3D-to-2D pattern visualisation.
Antenna Unit Converter & Field Calculator ★ NEW
dBi to dBd, antenna factor, effective aperture, EIRP and ERP, field strength in V/m and dBµV/m, power density, and the far-field distance of any antenna.
Monopole & Ground Plane Designer ★ NEW
Quarter-wave whip and radial lengths, feed impedance versus radial droop, ground loss and efficiency, plus the loading coil for a shortened whip.
Log-Periodic Dipole Array (LPDA) ★ NEW
Frequency range and target gain to scale factor, spacing factor, element count, full cut list and boom length using Carrel design equations.
Polarization Loss & Axial Ratio ★ NEW
Mismatch loss between linear, circular and elliptical antennas at any tilt, and axial ratio, tilt and sense from the field components.
Loop Antenna Calculator ★ NEW
Small, large and ferrite loops: radiation resistance, conductor loss, efficiency, inductance, tuning capacitor, Q and bandwidth.