Direction-dependent gain of a half-wave dipole antenna (Equation 1) as compared to the ideal isotropic radiator: Between an angle of 0 • and 57.44 • the half-wave dipole's radiation is weaker than the one of an ideal isotropic radiator and higher between 57.44 • and 122.56 •. At 90 • the half-wave dipole reaches its maximum gain and radiates 1.67 times as much power as an equally supplied isotropic radiator would do.