A waveguide is a structure that guides waves by restricting the direction of transmission of energy. Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct electromagnetic waves other than visible, or near visible, light, like radio waves.
A waveguide is a structure that guides waves by restricting the direction of transmission of energy. Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct electromagnetic waves other than visible, or near visible, light, like radio waves.
Source: Wikipedia "Waveguide" · CC BY-SA 4.0
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