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IEEE Transactions on Electron Devices

Issue 1 • Date Jan. 1977

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Displaying Results 1 - 14 of 14
  • [Front cover and table of contents]

    Publication Year: 1977, Page(s): c1
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    Freely Available from IEEE
  • Editorial

    Publication Year: 1977, Page(s):1 - 2
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  • A large-signal analysis of broad-band klystrons with design applications

    Publication Year: 1977, Page(s):3 - 12
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (952 KB)

    For the design of a high-performance broad-band klystron, an accurate large-signal analysis is made. By a one-dimensional analysis program using a disk model of the electron stream, the interaction between a bunched electron beam and the electric field in each cavity gap is studied, taking into consideration space-charge forces, relativistic effects, and electric field distributions in ungridded g... View full abstract»

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  • Broad-band injected-beam crossed-field amplifiers

    Publication Year: 1977, Page(s):13 - 21
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    The design and operation of injected-beam-crossed-field amplifiers, which provide efficient amplification over octave frequency bands with grid control in compact PM Focused format, are described. Dielectric supported meander lines, which are used to provide the low-dispersion and high-interaction impedance required to achieve octave bandwidth, are detailed. Relationships between space charge, gai... View full abstract»

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  • Starting in the cold cathode distributed emission crossed field amplifier

    Publication Year: 1977, Page(s):22 - 26
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The role of back bombarding electrons in the "starting" process of distributed emission crossed-field amplifiers is examined in this paper. Simple closed-form expressions are derived which show how the various parameters of the crossed-field amplifier affect the back bombardment potential and phase shift of the electrons in the initial (space-charge-free) current build-up region. A comparison of t... View full abstract»

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  • A contribution to computer analysis of coupled-cavity traveling wave tubes

    Publication Year: 1977, Page(s):27 - 31
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    A flexible accurate large-signal computer program has been developed for the design of coupled-cavity traveling wave tubes. The program is written for a TSS-360 time sharing system. The beam is described by a disk model and the slow wave structure by a sequence of cavities or cells. The computational approach is arranged so that each cavity may have different geometrical or electrical parameters t... View full abstract»

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  • Analysis of spent beam refocusing to achieve optimum collector efficiency

    Publication Year: 1977, Page(s):32 - 36
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    A reasonable criterion for evaluating the effectiveness of spent beam refocusing is the reduction of spent beam turbulence. The rms deviation of particle angles where the angles are calculated from the ratio of radial velocity to axial velocity is one measure of beam turbulence. It is demonstrated that the angular deviation can be reduced by almost half in some magnetic field configurations. Exper... View full abstract»

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  • Small-size 81- to 83.5-percent efficient 2- and 4-stage depressed collectors for octave-bandwidth high-performance TWT's

    Publication Year: 1977, Page(s):36 - 44
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1024 KB)

    In a joint USAF-NASA Program, Lewis Research Center is carrying out an efficiency improvement program on traveling wave tubes (TWT) for use in electronic counter measures (ECM) by applying multistage depressed collector (MDC) and spent beam refocusing techniques developed at Lewis. In the analytic part of the effort, three-dimensional electron trajectories are computed throughout the TWT. Trajecto... View full abstract»

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  • A novel electrostatic-focusing depressed collector for linear beam tubes

    Publication Year: 1977, Page(s):45 - 52
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    In a theoretical study, various types of retarding electrostatic fields are compared with respect to their usefulness in a depressed collector. Without space charge, fields having focusing properties lead to higher collector efficiencies ηcollthan defocusing fields. For a special case, the hyperbolic field, ηcollis given as a function of the angular beam spread, bea... View full abstract»

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  • A 2-kW average power X-band receiver protector

    Publication Year: 1977, Page(s):53 - 55
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    A 2-kW average power receiver protector with a 5000-h operating life has been developed. The design is of the gas plasma diode hybrid type which heretofore could provide only one-tenth the power handling for equivalent operating life. Predicted life is based on experimentally obtained molecular sorption coefficients performed at 2-kW average power in X band. The... View full abstract»

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  • Use of auger spectroscopy in the evaluation of thermionic cathodes

    Publication Year: 1977, Page(s):56 - 61
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    The ability of Auger spectroscopy to identify chemical species existing on a surface has been used to evaluate the properties of "good" and "poor" impregnated tungsten cathodes used in high-power microwave wave tubes. The surfaces of "good" and "poor" cathodes were studied by means of Auger spectroscopy and work function measurements and the results interpreted to analyze failure modes in cathodes... View full abstract»

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  • The role of ceramic voids and fracture propagation in shelf life failure of tubes

    Publication Year: 1977, Page(s):62 - 66
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    Small tubes having an internal volume of 0.1 cm3were found to become gassy during shelf life and subsequently to arc when turned on. Quadrupole mass analysis and Auger electron spectroscopy were used to identify internal gasses and deposits on electrodes of gassy tubes. Gasses released during ceramic fracture propagation were also studied. The results indicate that for the tubes investi... View full abstract»

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  • Electron trajectories in the PPM-focused coupled-cavity TWT

    Publication Year: 1977, Page(s):67 - 68
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    Trajectories of electrons in a coupled-cavity TWT with ppm focusing are plotted in both r-z and x-y views. Plots are given for magnetic fields from 1.0 to 1.9 times the Brillouin field, and for small signal and saturated RF conditions. It is shown that a suitably programmed field can control the beam entry problem and m... View full abstract»

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  • [Back cover]

    Publication Year: 1977, Page(s): c4
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    Freely Available from IEEE

Aims & Scope

IEEE Transactions on Electron Devices publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects.

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief

Giovanni Ghione
Politecnico di Torino,
10129 Torino, Italy

Phone +39 011 090 4064
email giovanni.ghione@polito.it