AT&T Archives: Similiarities of Wave Behavior
Unterminated end reflects in-phase. Terminated end reflects phase inverted. https://www.youtube.com/watch?v=DovunOxlY1k
Unterminated end reflects in-phase. Terminated end reflects phase inverted. https://www.youtube.com/watch?v=DovunOxlY1k
Very good basic explanations, overview, animations. https://www.youtube.com/watch?v=LmvfphxyRuo Patch (square, half-wavelength) Parabola Yagi-Uda monopole, dipole Horn