Beamforming - Cisco BWX 8305 Installation And Commissioning Manual

Beamforming

Figure 3-3
BWX 8305 Basestation Installation and Commissioning Guide
3-8
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
Concentrate the beam × 2 Concentrate the beam × 2 Concentrate the beam × 2
Concentrate the beam × 2 Concentrate the beam × 2 Concentrate the beam × 2
3 + 3 + 3 = 9 dB of gain
Concentrate the beam × 2 Concentrate the beam × 2 Concentrate the beam × 2
Chapter 3 Overview
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