RF Glossary: W | Terms Starting with W

W-Band — The frequency range from 75 to 110 GHz, used in advanced radar, imaging, and high-data-rate point-to-point links.

Waveguide — A hollow metallic tube that guides electromagnetic waves by confining them within its structure, used at microwave and millimeter wave frequencies.

Wavelength (Lambda) — The distance between successive identical points on a wave, inversely proportional to frequency: lambda = c/f.

Wilkinson Divider — A three-port power divider that provides matched ports, equal power split, and isolation between output ports using quarter-wave transformers.

Window (Atmospheric Window) — A frequency range where atmospheric absorption is low, allowing efficient free-space radio propagation for terrestrial and satellite links.

WR Designation — The standard waveguide size numbering system where the number represents the broad wall dimension in hundredths of an inch.

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