How an Antenna Works — very good, general
Very good basic explanations, overview, animations. https://www.youtube.com/watch?v=LmvfphxyRuo Patch (square, half-wavelength) Parabola Yagi-Uda monopole, dipole Horn The Yagi-Uda antenna, commonly referred to as the Yagi antenna, is a directional antenna design widely used in radio communication and broadcasting. It was invented in 1926 by Japanese engineers Hidetsugu Yagi and Shintaro … Read more