Antennas; microwave antennas; radio-frequency antennas; radar antennas; receiving antennas for satellite broadcasts; antennas as communication apparatus; antennas as components; radio wave transmission antennas; antennas for telecommunication networks; satellite antennas; high-frequency apparatus, namely, high frequency switches, high frequency mobile and sea-based communication antennas; measuring apparatus for antenna parameters; satellite navigation apparatus, namely, satellite-aided navig...