Dipoles, Yagis, patches, sectors, dishes, helicals, phased arrays, and MIMO — radiation pattern, gain, beamwidth, polarization, and the selection judgment that ties them together.
Every antenna family in this module is a different structural answer to the same question: how do you shape a radiation pattern to fit a specific coverage footprint or point-to-point link? This module works through gain, beamwidth, and polarization as the three numbers that actually drive selection, then covers the physical antenna types a working RF engineer specifies against those numbers — from a simple half-wave dipole through Yagis, patches, sector and omni panels, parabolic dishes and horns, helicals, and the phased array and MIMO structures behind modern 5G and satellite systems.
By the end of this module you should be able to explain why a cellular macro site uses three sector panels instead of one omni, why a satellite ground terminal uses a circularly polarized helical antenna instead of a dipole, and what a mounting drawing actually needs to specify beyond gain and frequency — details Module 14 (Drawings & Documentation) builds directly on.