📡 Antenna & RF Calculators — Chebyshev Arrays, Dipoles, Link Budget, VSWR
Design linear antenna arrays and estimate RF links. Array tools compute patterns numerically from the element weights, so beamwidth, sidelobe level and directivity are exact for isotropic elements.
No tools match your search.
- Dolph–Chebyshev Antenna Array CalculatorExcitation weights, beamwidth, directivity and sidelobe level of a Dolph–Chebyshev linear array with equal sidelobes. Supports beam steering.
- Uniform Linear Antenna Array CalculatorBeamwidth, directivity, sidelobe level, progressive phase and grating lobes of an N-element uniform linear array.
- Dipole Antenna Length CalculatorHalf-wave and quarter-wave dipole lengths for a frequency, including a velocity (end-effect) factor, plus gain and aperture.
- Parabolic Dish Antenna CalculatorGain, beamwidth, effective area and far-field distance of a parabolic reflector antenna.
- Free-Space Link Budget CalculatorFree-space path loss, EIRP and received power of a radio link from transmit power, antenna gains, frequency and distance.
- VSWR & Reflection Coefficient CalculatorReflection coefficient, VSWR, return loss, mismatch loss and input impedance of a transmission line with a complex load.