Patent ID: 9049083
Filing Date: 2015-06-02
Classification: H01Q,H04B,H04L

Abstract:
1. A base station antenna, comprising a transceiver (TRX) array, a first-level vector synthesis network, a second-level phase shifter array, a second-level vector synthesis network, and an antenna unit array, wherein: the TRX array comprises N TRXs, which are configured to output N vector signals, wherein N is a natural number greater than or equal to 2; the first-level vector synthesis network is configured to implement vector synthesis for the N vector signals to generate M vector signals, wherein M is a natural number and M is greater than N; the second-level phase shifter array is configured to receive the M vector signals output by the first-level vector synthesis network, change phases of the M vector signals, and output M phase-shifted vector signals, wherein phase shift amounts of the M vector signals after passing through the second-level phase shifter array are an arithmetic progression; the second-level vector synthesis network is configured to receive the M phase-shifted vector signals, divide the M vector signals into P vector signals, implement vector synthesis for Q vector signals in the P vector signals and output Q synthesized vector signals, and directly output a vector signal except the Q vector signals in the P vector signals, wherein P is a natural number and P is greater than M, and Q is a natural number and less than or equal to P; and the antenna unit array is configured to receive the P vector signals output by the second-level vector synthesis network and convert the P vector signals into electromagnetic waves for radiating.