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Proceedings of the IRE

Issue 1 • Date Jan. 1948

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Displaying Results 1 - 25 of 37
  • Information about the Society

    Publication Year: 1948, Page(s): i
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  • Table of contents

    Publication Year: 1948, Page(s): ii
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  • General information

    Publication Year: 1948, Page(s): ii
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  • Contents of Volume 36 - 1948

    Publication Year: 1948, Page(s):1 - 6
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  • Table of contents

    Publication Year: 1948, Page(s): [1]
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  • Benjamin E. Shackelford, President-Elect, 1948

    Publication Year: 1948, Page(s): 2
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  • Technical Journalism

    Publication Year: 1948, Page(s): 3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

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  • High-Frequency Plated Quartz Crystal Units

    Publication Year: 1948, Page(s):4 - 7
    Cited by:  Papers (7)
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    A description is given of the general problems relating to the development of high-frequency plated crystal units and of methods used for supporting the quartz blank and adjustment to frequency by the use of evaporated gold. View full abstract»

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  • The Ionospheric Eclipse of October 1, 1940

    Publication Year: 1948, Page(s):8 - 15
    Cited by:  Papers (1)
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    This discussion presents the variations in the critical frequencies of the various ionospheric layers over Queenstown, South Africa, during the total solar eclipse of October 1, 1940, and compares them with the normal-day data. It is shown that recombination and diffusion cannot completely explain the phenomena in the F2layer and that the cooling of the atmosphere by the eclipse may be ... View full abstract»

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  • Theory of Amplitude-Stabilized Oscillators

    Publication Year: 1948, Page(s):16 - 19
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    The performance of generalized amplitude-stabilized oscillators is analyzed in terms of an amplitude-stability parameter, or stability figure of merit. Theoretical possibilities of stabilization with ballast tubes, lamps of various types, and thermistors are described, together with a novel oscillator circuit. View full abstract»

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  • Application of Velocity-Modulation Tubes for Reception at U.H.F. and S.H.F.

    Publication Year: 1948, Page(s):19 - 23
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    Upon introduction of the notions of gain and noise figure, it appears that preamplifier stages using velocity-modulation tubes are unsuitable at u.h.f. and s.h.f. under operational conditions considered hitherto. A special arrangement, connected with such a tube and consisting of three electrode pairs spaced along the electron stream, is considered in this paper. The first pair is connected to a r... View full abstract»

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  • Phase and Amplitude Distortion in Linear Networks

    Publication Year: 1948, Page(s):24 - 36
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4616 KB)

    All practical communication networks exhibit distortions from the ideal linear phase and flat amplitude (all-pass) characteristics. When linear phase together with finite amplitude bandwidth prevail, the build-up time of the step transient response equals the reciprocal of twice the amplitude bandwidth. However, when phase distortion together with all-pass amplitude characteristics prevail, the fi... View full abstract»

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  • Design Principles of Amplitude-Modulated Subcarrier Telemeter Systems

    Publication Year: 1948, Page(s):36 - 41
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    Of the many multichannel radio telemeter systems that are being used for the instrumentation of airplanes and guided missiles, one of the simplest employs a separate amplitude-modulated audio subcarrier for each channel. In this paper a rational basis for the design of such systems is presented. The problems of multichannel overload, cross talk from adjacent channels, filter design criteria, and s... View full abstract»

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  • Trigonometric Components of a Frequency-Modulated Wave

    Publication Year: 1948, Page(s):42 - 49
    Cited by:  Papers (7)
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    The exact solution of the differential equation of a variable-capacitance (or variable-inductance) resonant circuit is given, in a form having a clear physical meaning, and allowing an accurate numerical computation. The explicit expression of the output voltage, as well as the expressions of the charge, and of the current, are written in terms of the two parameters of the nondissipative circuit. ... View full abstract»

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  • Class-A Push-Pull Amplifier Theory

    Publication Year: 1948, Page(s):50 - 52
    Cited by:  Papers (1)
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    Two tubes operating in push-pull, class-A1, will produce more than twice the power output of a single tube using the same operating voltages, and with optimum load values in each case. This is demonstrated analytically by means of an equivalent circuit. The change in load impedance seen by one tube due to the effect of coupling to the other tube is considered and used to explain the res... View full abstract»

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  • Methods of Tuning Multiple-Cavity Magnetrons

    Publication Year: 1948, Page(s):53 - 56
    Cited by:  Papers (1)  |  Patents (1)
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    Several methods have been developed for tuning multiple-cavity magnetron oscillators over wide frequency ranges. The most successful of these involves simultaneous variation of both the inductance and capacitance of all the resonant cavities by a single tuning motion. Tuning ranges of better than 1.4 to 1 have been obtained with good efficiency throughout. As an example, a magnetron is described w... View full abstract»

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  • Theory of the Circular Diffraction Antenna

    Publication Year: 1948, Page(s):56 - 60
    Cited by:  Papers (16)  |  Patents (2)
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    The object of this investigation is a study of the electromagnetic field produced by a diffraction antenna in the form of a circular gap made in a conducting plane. An e.m.f. is applied across the gap. The method of investigation is based on the classical diffraction theory by Fresnel and Kirchhoff. The expressions for E and H are obtained and applied to the calculation of electric field intensity... View full abstract»

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  • A New Type of Waveguide Directional Coupler

    Publication Year: 1948, Page(s):61 - 64
    Cited by:  Papers (15)  |  Patents (1)
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    A type of waveguide directional coupler is described which has been carefully measured over a 12 per cent wavelength band centered at 3.3 centimeters. It combines the advantages of high directivity, low input standing-wave ratio, ease of design, and universality of application. Sufficient theory is given to explain the principles of its operation, and to allow its performance to be duplicated at o... View full abstract»

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  • The Series Reactance in Coaxial Lines

    Publication Year: 1948, Page(s):65 - 69
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    An experimental investigation has been conducted to determine the effect of a reactance placed in series with the inner conductor of a coaxial line. It was found that capacitive reactances appear in parallel with the inserted series reactance, and in parallel with the resultant impedance of the line at the point where the series reactance is placed. These capacitances can be determined experimenta... View full abstract»

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  • Tracing of Electron Trajectories Using the Differential Analyzer: Introduction

    Publication Year: 1948, Page(s):69 - 70
    Cited by:  Papers (1)
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    The differential analyzer is used to give a graphical solution of electron paths in the magnetron and triode oscillators with d.c. and r.f. applied anode potential. A d.c. space charge is approximated in the magnetron; otherwise no space charge is included. The results are of interest in explaining experimental results. In particular, the magnetron paths show a marked tendency towards synchronism,... View full abstract»

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  • Tracing of Electron Trajectories Using the Differential Analyser: Part I-Differential Analyzer Representation

    Publication Year: 1948, Page(s):70 - 73
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  • Tracing of Electron Trajectories Using the Differential Analyzer: Part II-Electron Paths in Magnetrons

    Publication Year: 1948, Page(s):74 - 76
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  • Tracing of Electron Trajectories Using the Differential Analyzer: Part III-Study of Transit-Time Effects in Disk-Seal Power-Amplifier Triodes

    Publication Year: 1948, Page(s):76 - 83
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  • Discussion on "Harmonic-Amplifier Design" (Robert H. Brown)

    Publication Year: 1948, Page(s): 84
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  • Contributors to the Proceedings of the I.R.E.

    Publication Year: 1948, Page(s):84 - 87
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Aims & Scope

This Periodical ceased production in 1962. The current retitled publication is Proceedings of the IEEE.

Full Aims & Scope