Patent ID: 9252483
Filing Date: 2016-02-02
CPC Classification: H01Q

Claim Text:
1. Active antenna system comprising: a first antenna group which is provided for transmitting and receiving operation, a second antenna group provided for receiving operation, the two antenna groups being arranged so one of the antenna groups is above the other antenna group, each antenna group comprising at least two antenna subgroups, each antenna subgroup comprising at least one radiator, the first antenna subgroup being interconnected via a first supply network, the second antenna subgroups being interconnected via a second supply network different than the first supply network, the first and second supply networks providing phase shifters configured to provide frequency-dependent amplitudes distributions for the first and second antenna groups, respectively, the first and second antenna groups being connected to a shared transmitting and receiving unit, the first supply network of the first antenna group having an amplitude distribution which is dependent on a transmitting and a receiving frequency, the first supply network being constructed in such a way that the following amplitude distribution condition is met where A A Z is the number of antenna subgroups of the first antenna group.