Antenna Calculators
Antenna calculators are listed here.
Antenna ApertureAntenna Effective AreaAntenna GainBeam FactorCircular Antenna GainGain of An Antenna with LossesGain of Circular X-Band ApertureGain of Rectangular X-Band ApertureIrradiance of a surfaceParabolic Dish Antenna BeamwidthRadiant ExitanceRadius of the Rim (Paraboloidal Dish)Spectral Irradiance