06801790 is referenced by 90 patents and cites 3 patents.

An antenna array comprising at least two groups of antennas where each group comprises at least two pairs of antennas. Each of the pairs in a group contains orthogonally polarized antennas and at least one antenna in a pair is similarly polarized to one antenna in at least another pair in the group. The antenna array further comprises circuitry coupled to the antenna groups to select and activate certain antennas in a group to enable the antenna array to operate in either a beam forming/steering mode, a diversity mode or a MIMO mode or any combination thereof. The antennas in the groups are activated based on the characteristics of the signals being transmitted or received by the antenna array.

Title
Structure for multiple antenna configurations
Application Number
9/764791
Publication Number
6801790 (B2)
Application Date
January 17, 2001
Publication Date
October 5, 2004
Inventor
Ashok N Rudrapatna
Basking Ridge
NJ, US
Agent
Stephen M Gurey
US
Assignee
Lucent Technologies
NJ, US
IPC
H04B 1/38
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