An electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation. Klystrons provided the microwave energy used by the radar systems. More information. Back to
A microwave tube which uses the interaction between an electron beam and the RF energy on microwave cavities to provide signal amplification. The klystron operates on principles of velocity modulation very similar to those in a TWT except that klystron interaction takes place at discrete locations along the electron beam. Common types of klystrons are the reflex klystron (an oscillator having only one cavity), two-cavity klystron amplifiers and oscillators, and multi-cavity klystron amplifiers.
power amplifier tube used to amplify weak microwave energy (provided by a radio- frequency exciter) to a high power level for a radar transmitter. A klystron is characterized by high power, large size, high stability, high gain, and high operating voltages. Electrons are formed into a beam that is velocity modulated by the input waveform to produce microwave energy. A klystron is sometimes referred to as a linear beam tube because the direction of the electric field that accelerates the electron beam coincides with the axis of the magnetic field, in contrast to a crossed-field tube such as a magnetron. Klystrons provide a coherent transmitted signal appropriate for Doppler radar and pulse-compression applications. They are used in many operational radars, for example, NEXRAD (Next Generation Weather Radar) and TDWR ( Terminal Doppler Weather Radar). Compare magnetron.
The Klystron is an electron tube that makes use of velocity modulation in order to amplify or create ultra high frequency waves. As well as being instrumental in the advent of Doppler radar (which was, in fact, the invention that lead to the defeat of the Axis powers in World War Two) the Klystron was instrumental in the development of high frequency broadcasting, which made large-scale broadcast television possible.
A klystron is a specialized vacuum tube (evacuated electron tube) called a linear-beam tube. The pseudo-Greek word klystron comes from the stem form ÎºÎ»Ï…Ïƒ- (klys) of a Greek verb referring to the action of waves breaking against a shore, and the end of the word electron.