Installation Manual Part 1

PRELIMINARY
3-7
BWX 8415 Basestation Installation and Commissioning Guide
OL-19519-01
Chapter 3 Overview
3.5 Beamforming
Figure 3-3 Beamforming
 The phase of the individual elements is
controlled so that their contributions to the
EM field add up constructively (thus
concentrating the power of the beam) in a
particular direction
 Doubling
the number of elements doubles
the concentration of the beam
 Our antennas have 2 × 2 × 2 = 8 elements
3 + 3 + 3 = 9 dB of gain
Concentrate the beam × 2
Concentrate the beam × 2 Concent rate the beam × 2
Concentrate the beam × 2Concentrate the beam × 2
Concentrate the beam × 2 Concent rate the beam × 2Concentrate the beam × 2 Concent rate the beam × 2