Fixed Radio Systems - Point to Multipoint Antennas; Antennas for point-to-multipoint fixed radio systems in the 11 GHz to 60 GHz band - Part 3: Multipoint Multimedia Wireless system in 40,5 GHz to 43,5 GHz (Endorsement of the English version EN 301215-3 V 1.1.1 (2001-08) as German Standard)