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finds exact gain, directivity and input impedance of Yagi or log-periodic antennas (planar symmetric array of cylindrical dipoles, many driven elements) for a range of specified frequencies, integrates 2D for segments on the same element, moment method
Lunessaphir Mini Beam Simulator is a simulator of antenna propagation.You can see easily the spacial radiation patterns of array antenna like a thermogram, depending on amplification and phase of each antenna element.