In the iterative method for producing maximally-flat response for the multicavity klystron amplifier, a choice must be made in allocating poles to cavities. In this thesis, a method is described for selecting the tuning pattern which will give flat response with maximum gain for a specific multicavity klystron. The iterative method for multicavity klystron amplifiers is extended, to tubes with up to six cavities. It is shown that the optimum tuning pattern has an appreciable advantage in gain over the alternative choices. The practice of allocating the highest-frequency pole to the penultimate cavity is justified, at least for relatively short tubes. Illustrative numerical tuning designs for four-, five- and six-cavity klystron amplifiers with different tuning patterns are given to verify the method. The restrictions of small-signal fundamental-mode theory apply throughout the thesis. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

This thesis describes the theoretical adjustment of the tuning of multicavity klystron amplifiers for prescribed frequency response. The method used is an iterative process developed at Stanford University in 1952. The purpose of the investigation was to test the applicability of the iterative method to the design of microwave amplifiers. The rational function representation of klystron amplifier response is described and it is shown that for physical realizability the zeros of transmission must be dependent on the poles of transmission. An iterative numerical method is developed for simultaneously fulfilling the prescribed response conditions and the physical realizability condition. Illustrative numerical designs of four- and five cavity klystron amplifier tuning are given which verify the method. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

A multistable composite volt-ampere characteristic can be realized using a number of tunnel diodes. A maximum of 2ⁿ stable states can be obtained using n suitably chosen tunnel diodes connected in series. The main purpose of this study is to investigate the static and dynamic characteristics of such a circuit. Preliminary work deals with the switching behaviour of a single tunnel diode and the dependence of the switching time on the figure of merit and the current overdrive. This work serves as a background to the study of the multistate circuit. The study of the static characteristics of the composite device determines the conditions necessary for the generation of the required number of stable states. Additional conditions necessary to ensure proper operation are derived from the study of dynamic characteristics of a two tunnel diode multistate circuit. The dynamic conditions derived involve the tunnel diode capacitances and their ratio. The temperature dependence of the circuit is also investigated. Experimental results are presented showing an operating speed of 12.5 ns for a four state circuit using available tunnel diodes. The versatility of the composite characteristic obtained, and the inherent high speed of the tunnel diodes combine to make the multistate device useful in high-speed digital applications such as: binary addition, analog-to-digital conversion .and counting. These applications are discussed briefly. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

The theory of the magnetic amplifier and other carrier amplifiers is put on a general mixer basis. The amplifiers are compared from this common basis and paths of further development indicated. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

No description available.

Thesis (M.S.)--University of Wisconsin--Madison, 1965. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 66-68.

The purpose of this study has been to construct two accelerating tubes with small beam apertures for the Van de Graaff, modifying the prototype tube designed and tested by Wiley (20), to design and construct a vacuum system for evacuating the tubes, and to determine the characteristics of the tube under operating conditions while installed in the generator.

No description available.

This thesis describes the design of two particular types of conventional distributed amplifiers and treats a proposed split-band amplifier. The method used for the conventional designs is an iterative synthesis process developed at Stanford University in 1952. The objective was to investigate the possibility of producing distributed amplifiers of superior performance. Only amplifiers with a flat amplitude response were considered since the calculating equipment available was inadequate for the computations involved in producing amplifiers with other types of response characteristics. Three designs of one form of conventional distributed amplifier were carried out. These were amplifiers with ladder networks for delay lines and with both delay lines identical except for a possible difference in impedance level. None of the three amplifiers had theoretical characteristics which justified an attempt to construct them. The other conventional amplifier was one employing ladder-like networks for the delay lines with each of the lines symmetrical about the mid-point of its length and with both lines identical except for a possible difference in impedance level. An attempt to design one of these amplifiers produced new information beyond that reported in the original work at Stanford University. Furthermore, when using the iterative technique to design this amplifier, there seemed to be reasonable doubt as to whether or not the process was always convergent. No definite opinion on the matter was formulated since it would have required that the calculations be continued through more cycles of iteration than could reasonably be carried out with the computing equipment at hand. Finally, a proposed split-band amplifier was investigated and its theoretical gain-bandwidth characteristics were compared with those of a conventional distributed amplifier. It showed a slight advantage, but this was far outweighed by certain serious inherent disadvantages and the project was discontinued. The investigation has shown that it is impractical to carry out the calculations involved in the iterative prodecure when using a hand calculator. Also, some doubt as to the general convergence of the iterative synthesis process has been raised. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

The purpose of this study has been to design a prototype accelerating tube, to determine the correct point shape and spacing needed to produce corona current along the tube for the case of negative-point-to-positive-plane discharge, and to study the voltage-gradient characteristics of short sections of the tube when they were evacuated to a low internal pressure.