RF Glossary: V | Terms Starting with V

V-Band — The frequency range from 40 to 75 GHz, used in point-to-point communications, automotive radar, and scientific instruments.

VCO (Voltage-Controlled Oscillator) — An oscillator whose output frequency varies as a function of an applied DC control voltage, used in PLLs and frequency synthesizers.

VNA (Vector Network Analyzer) — A precision measurement instrument that characterizes RF components by measuring complex S-parameters in both magnitude and phase.

VSWR (Voltage Standing Wave Ratio) — A measure of impedance matching quality, defined as the ratio of maximum to minimum voltage in a standing wave pattern on a transmission line.

VHF (Very High Frequency) — The frequency range from 30 MHz to 300 MHz, used in FM radio, television, air traffic control, and marine communications.

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