klystron

/'klistrɔn/

Thân thiện

A scientist adjusts a klystron tube in a laboratory.

Definition

1. Noun:
   • A specialized vacuum tube for microwave generation or amplification: A klystron is an electronic device that produces or increases the power of electromagnetic waves in the microwave frequency range. It operates by controlling the speed (velocity modulation) of a beam of electrons.

Examples of Usage

• Noun:
  • The radar system relies on a powerful klystron to generate its microwave signals.
  • Scientists used a klystron to amplify the weak microwave signal for the experiment.

Advanced Usage

• "Reflex klystron": A specific type of klystron where the electron beam is reflected back through a single cavity, often used as a low-power microwave oscillator.
  • The local oscillator in the older receiver was a reflex klystron.

Variants and Related Words

• Klystrons (n): The standard plural form.
  • The laboratory housed several different klystrons for testing.

Synonyms

• Microwave tube: A general term for vacuum tubes that operate at microwave frequencies.
• Velocity-modulated tube: A technical term describing the operating principle shared by devices like the klystron.

Related Terms (Not Phrasal Verbs)

• Cavity resonator: A key component within a klystron where the microwave energy is built up.
• Electron beam: The stream of electrons that is controlled within the tube.
• Velocity modulation: The core process of varying the speed of electrons to create bunches, which then transfer energy to the microwave field.

Học thuật

Noun

1. an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation