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Reflex klystron amplifier pdf

 
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MessagePosté le: Mer 7 Mar - 08:56 (2018)    Sujet du message: Reflex klystron amplifier pdf Répondre en citant

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Klystron amplifiers are high power microwave vacuum tubes. Klystrons are velocity-modulated tubes that are used in some radar equipments as amplifiers. Repeller Klystron. Figure 2: Cavity of a repeller klystron. Another tube based on velocity modulation, and used to generate microwave energy, is the reflex klystron
a klystron, however, the electron gun is merely the source of an electronbeam and the radio-frequency por- tion of the klystron is independent of the electron source. Fig. 2-Circuit diagram for a reflex oscillator and power supply. The beam travels along the axis of the tube beyond the anode plane with a uniform velocity
Consider a klystron consisting of two cavities, a. “buncher” and a “catcher,” both gridded. (Fig.1). Let a beam of electrons, which has been accelerated by a potential Vo to a velocity uo, traverse the first pair of grids, where it is acted upon by an rf voltage V1sin?t, reduced by a “coupling coefficient” M. The latter modifies the
A reflex klystron consists of an electron gun, a cavity with a pair of grids and a repeller plate as shown in the above diagram. ? In this klystron, a single pair of grids does the functions of both the buncher and the catcher grids. ? The main difference between two cavity reflex klystron amplifier and reflex klystron is that the
gap” between vacuum-tube electrodes of the high-frequency circuit; the interaction of electrons and electromagnetic fields is basic, the col- lection of electrons .. of reflector voltage or spacing. The general construction of the reflex klystron oscillator and a two- resonator klystron amplifier is indicated schematically in Fig. 1.4.
repels the beam (“repeller”). This type of klystron oscillator is called a reflex klystron because of the reflex action of the electron beam. Figure 2: Wiring with a repeller klystron, and an example given low power repeller klystron tube. Repeller klystrons are often used in older radar sets as local oscillators or as oscillators in.
A reflex klystron consists of an electron gun, a cavity with a pair of grids and a repeller plate as shown in the above diagram. ? In this klystron, a single pair of grids does the functions of both the buncher and the catcher grids. ? The main difference between two cavity reflex klystron amplifier and reflex klystron is that the
There are two basic configurations of klystron tubes; 1. Reflex Klystron used as a low-power Microwave oscillator; 2. Multi cavity klystron used as low-power microwave amplifier. REFLEX KLYSTRON. REFLEX KLYSTRON. REFLEX KLYSTRON. Single Re-entrant cavity as a resonator. The electron beam emitted from the
In a linear-beam tube, as the name implies, the electron beam and the circuit elements with which it interacts are .. The reflex klystron may be used as a local oscillator, low-power FM transmitter, or test signal source. Similar in design to the two-cavity oscillator, the two-cavity klystron amplifier pro- vides limited power
9 Feb 2015 present are the linear-beam tubes (O type) tabulated in Table 9-0-1. The paramount. 0-type tube is the two-cavity klystron, and it is followed by the reflex klystron. The helix traveling-wave tube (TWT), the coupled-cavity TWT, the forward-wave am- plifier (FWA), and the backward-wave amplifier and oscillator

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MessagePosté le: Mer 7 Mar - 08:56 (2018)    Sujet du message: Publicité

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