3 edition of The non-linear characteristics of klystron amplifiers found in the catalog.
The non-linear characteristics of klystron amplifiers
David John Whythe
Published
1968
by British Broadcasting Corporation
.
Written in
Edition Notes
| Statement | by D.J. Whythe,J.L. Eaton. |
| Series | British Broadcasting Corporation. Engineering monographs, no.74 |
| The Physical Object | |
|---|---|
| Pagination | 28p.,ill.,28cm |
| Number of Pages | 28 |
| ID Numbers | |
| Open Library | OL15064594M |
| ISBN 10 | 0563074841 |
| OCLC/WorldCa | 30278018 |
accelerator and its 21 klystron amplifiers were built at the University’s Microwave Laboratory. The SLAC Klystron Department, dedicated to the design and production of increasingly more powerful microwave sources, has developed specialized techniques to achieve these purposes. This knowledge should be permanently documented. Consequently, we have. History of Klystron. The idea of a velocity modulated tube as microwave oscillator was first described by Agnessa Arsenjewa-Heil and Oskar Heil in a paper published in Germany.. William Webster Hansen, Associate Professor Physics at Stanford University, invented the microwave cavity resonator. He named his resonators “rumbatrons”. Using these “rumbatrons”, Russell and.
Multicavity Klystron Amplifier: The bunching process in a two-cavity klystron is by no means complete, since there are large numbers of out-of-phase electrons arriving at the catcher cavity between bunches. Consequently, more than two cavities are always employed in practical klystron amplifiers. Klystron amplification, power output, and efficiency can be greatly improved by the addition of intermediate cavities between the input and output cavities of the basic klystron. Additional cavities serve to velocity-modulate the electron beam and produce an increase in the energy available at the output. Since all intermediate cavities in a multicavity klystron operate in the same manner, a.
Featuring numerous illustrations and examples of real-world engineering applications, this book: Gives an overview of intermodulation and elaborates on the difference between linear and nonlinear amplifiers Describes the high-frequency model and transient characteristics of metal–oxide–semiconductor field-effect transistors Details active. @article{osti_, title = {Klystron beam-bunching lecture}, author = {Carlsten, B}, abstractNote = {Electron beam current modulation in a klystron is the key phenomenon that accounts for klystron gain and rf power generation. Current modulation results from the beams` interaction with the rf fields in a cavity, and in turn is responsible for driving modulation in the next rf cavity.
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A klystron is a specialized linear-beam vacuum tube, invented in by American electrical engineers Russell and Sigurd Varian, which is used as an amplifier for high radio frequencies, from UHF up into the microwave range.
Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television. The non-linear characteristics of klystron amplifiers.
A method is shown by which the two-cavity ballistic theory of klystrons may be extended to apply to four-cavity klystrons used for television. A closed integro-differential equation for a relativistic electron beam propagating through a klystron amplifier is obtained, assuming that the beam current is a function of time t and propagation distance udes of the energy and current modulation are determined in terms of the gap voltage, the cavity frequency, geometric configuration, the beam intensity and initial kinetic energy of Cited by: 4.
The klystron shown in Figure has an integral cavity, but demountable cavities are also possible, as with amplifier klystrons. The frequency of resonance is mechanically adjustable by any of the methods discussed in Sectionwith the adjustable screw, bellows or.
Multicavity Klystron. As shown in the given diagram. The multi cavity klystron consist of a glass envelope in which there is an electron gun composed of heater and cathode. After the electron gun there are two focusing electrodes used to keep the electron beam in the center around the glass envelope.
Klystron High Power Amplifiers for SATCOM Applications Communications & Power Industries (CPI), Satcom Division Palo Alto, CA A new family of C-band, Ku-band and direct broadcast satellite (DBS)-band compact GEN IV klystron power amplifiers (KPA) has been introduced.
The non-linear characteristics of klystron amplifiers book The new amplifiers incorporate a multistage depressed-collector (MSDC) klystron that allows. The effects of spatial nonuniformity of electron multibeam emission on the output characteristics of a coaxial multibeam Ka-band relativistic klystron amplifier (RKA) are investigated using particl.
Op-Amp or operational amplifier have a lot of applications in the modern era of integrated circuits. It can be used in its amplifier mode or switching mode, When the mode of op-amp changes its performance also changes.
with this mode change, reference voltage change, feed back change (positive or negative or maybe no feedback) and Continue reading ‘Linear and Nonlinear Applications of OP.
Reflex klystron amplifier, microwave klystron amplifier 1. REFLEX KLYSTRON Presented by: Presented to: Kamal Jeet Mr Rohit Giri (ECE) 3rd yr Dept.
of (ECE) 2. CONTENTS Introduction Construction Working Reflex Klystron oscillator Applications 3. BBC Monograph The Non-linear Characteristics of Klystron Amplifiers.
D.J. Whythe, J.L. Eaton. Klystron Amplifier Klystron amplifiers are high power microwave vacuum tubes They are used in some coherent radar transmitters as power amplifiers.
Klystrons make use of the transit-time effect by varying the velocity of an electron beam. A klystron uses special resonant cavities which modulate the. Relativistic klystron amplifiers for the linear collider usually used a iris loaded waveguides as an output circuit.
The behavior of electron and electromagnetic waves in traveling wave (TW. The klystron is used as the RF source in many LINAC-based radiation units, especially in units employing LINACs with electron-beam energy levels exceeding 10 MeV. It is used as an RF power amplifier that amplifies the input of a low-power RF signal which is generated by a low-power RF source commonly called a RF driver.
1,2 1. Klystron, thermionic electron tube that generates or amplifies microwaves by controlling the speed of a stream of electrons. The electrons are originally accelerated to high velocity by a potential of several hundred volts and enter a narrow gap that forms part of a cavity resonator system (see figure), where they are acted upon by a radio-frequency field, which causes a bunching-up effect.
Featuring numerous illustrations and examples of real-world engineering applications, this book: Provides an overview of intermodulation and elaborates on the difference between linear and nonlinear amplifiers. Describes the high-frequency model and transient characteristics of metal–oxide–semiconductor field-effect transistors.
The RF source is a klystron amplifier (see Section ) and it is usual to have a single HV power supply (∼60 kV) for several klystrons depending upon rating. As for EC, the development issues for the klystron relate mainly to the cooling of the structure.
Amplifiers; Klystron. Klystron (15 companies found) Compare and research Klystron companies and businesses online. Hybrid Electronics. Electronic component distributors, including hard to find parts. Hybrid Electronics, "the strongest link in your supply chain management!" write a review.
Gain compression is a reduction in "differential" or "slope" gain caused by nonlinearity of the transfer function of the amplifying device.
This nonlinearity may be caused by heat due to power dissipation or by overdriving the active device beyond its linear region.
It is a large-signal phenomenon of circuits. • The Klystron is a linear beam device; that is, the electron flow is in a straight line focused by an axial magnetic field. • The velocities of electrons emitted from the cathode are modulated to produce a density-modulated electron beam.
Construction of Two cavity Klystron 5. Two cavity Klystron Amplifier 6. Klystron. A klystron is basically a vacuum tube with input and output structures replaced with resonant cavities known as buncher cavity and catcher cavity. Normally it functions as amplifier.
The klystron with internal or external feedback built in its design can function as oscillator. which is really a kind of non-linear amplifier. The volume at first increases but as we get close to the stop of the knob (you may have to be a teenager to experience this fully), the output does not in-crease much and a great deal of noise can now be heard in the music.
This is saturation. The peak power is seen at the highest point of the curve.The culmination of the author's 50 years of industry experience, this authoritative resource offers you a thorough understanding of the operations and major classes of microwave tubes.
Minimizing the use of advanced mathematics, the book places emphasis on clear qualitative explanations of phenomena. Introduction to RF Power Amplifier Design and Simulation fills a gap in the existing literature by providing step-by-step guidance for the design of radio frequency (RF) power amplifiers, from analytical formulation to simulation, implementation, and measurement.
Featuring numerous illustrations and examples of real-world engineering applications, this book:Reviews: 1.
