Theoretical and experimental investigation of a method for increasing the output power of a microwave tube based on the split-cavity oscillator

Journal Article · Sun May 15 04:00:00 EDT 1994 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.355698· OSTI ID:7283433

Lemke, R W; Clark, M C; Marder, B M ^[1]

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1. Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185 (United States)

The split-cavity oscillator (SCO) is a cavity resonator that can be used to produce a high degree of density modulation in an intense relativistic electron beam. The kinetic energy of electrons in the modulated beam can be converted into high-power microwaves. Aspects of the modulated beam that affect the process of converting beam power into microwave power are considered, and a technique is investigated for optimizing the conversion efficiency of a microwave tube based on the SCO. Using a combination of nonlinear theory, numerical simulation, and experiment, it is shown that the most efficient implementation of the SCO is as the modulating component of a klystronlike tube, in which the modulated beam is drifted a relatively short distance to maximize the rf current, which optimizes the efficiency of power extraction.

• DOE Contract Number: AC04-94AL85000
• OSTI ID: 7283433
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 75:10; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
BEAM INJECTION
BEAMS
CAVITY RESONATORS
ECONOMIC ANALYSIS
ECONOMICS
ELECTRON BEAMS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
INPUT-OUTPUT ANALYSIS
LEPTON BEAMS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
MODULATION
NONLINEAR PROBLEMS
PARTICLE BEAMS
RELATIVISTIC BEAM INJECTION
RESONATORS
SIMULATION