| Antenna Briefs 7 - Radio Wave Reflections in Propagation and Antenna Design MegawattKS |
| Antenna Briefs 7 - Radio Wave Reflections in Propagation and Antenna Design - Part 1 This episode covers reflection of radio waves and how it is important in both propagation, and in the design and construction of directional antennas. Part 1 overviews both, as well as introducing related effects including refraction, diffraction, absorption, and scattering. The main focus is at frequencies of VHF and above, including cellular, but a brief mention of HF propagation is also made. Part 2 will provide an overview of how EM fields are reflected (and/or absorbed) by materials including metal and wood, and show real-world measurements of reflection and absorption (attenuation) for some typical materials found in residential and commercial buildings. https://youtu.be/gKNsVSUiS9I |