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Proceedings of the IRE

Issue 1 • Jan. 1949

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Displaying Results 1 - 25 of 35
  • Information about the Society

    Publication Year: 1949, Page(s): 1
    Cited by:  Papers (1)
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  • Table of contents

    Publication Year: 1949, Page(s): 2
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  • General Information

    Publication Year: 1949, Page(s): 2
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  • Contents of Volume 37 - 1949

    Publication Year: 1949, Page(s):3 - 7
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  • Index to authors

    Publication Year: 1949, Page(s):8 - 9
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  • Index to book reviews

    Publication Year: 1949, Page(s): 9
    Cited by:  Papers (1)
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  • Index to subjects

    Publication Year: 1949, Page(s):10 - 19
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  • Nontechnical index

    Publication Year: 1949, Page(s):20 - 22
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  • Table of contents

    Publication Year: 1949, Page(s): [1]
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  • Stuart L. Bailey, President, 1949

    Publication Year: 1949, Page(s): 2
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  • The Place of the Proceedings

    Publication Year: 1949, Page(s): 3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    First Page of the Article
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  • The Electron-Wave Tube-A Novel Method of Generation and Amplification of Microwave Energy

    Publication Year: 1949, Page(s):4 - 10
    Cited by:  Papers (16)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2352 KB)

    A novel method of generation and amplification of microwave energy is described, based on space-charge interaction of electron streams of different velocities. The electron streams are generated within a common space which, in the presence of electrons, behaves as a unidirectional transmission medium having negative attenuation. The basic theory of the new method is developed, and formulas and cur... View full abstract»

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  • Communication in the Presence of Noise

    Publication Year: 1949, Page(s):10 - 21
    Cited by:  Papers (1909)  |  Patents (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2472 KB)

    A method is developed for representing any communication system geometrically. Messages and the corresponding signals are points in two "function spaces," and the modulation process is a mapping of one space into the other. Using this representation, a number of results in communication theory are deduced concerning expansion and compression of bandwidth and the threshold effect. Formulas are foun... View full abstract»

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  • Multiplex Employing Pulse-Time and Pulsed-Frequency Modulation

    Publication Year: 1949, Page(s):22 - 28
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    A microwave communication system giving two-channel voice transmission over a single carrier is described. Diplexing is accomplished by the use of two types of modulation, rather than by time or frequency division. One channel is transmitted by a form of pulse-time modulation using 1-microsecond pulses at a mean repetition rate of 10 kc, and the other channel by frequency modulation of the pulsed ... View full abstract»

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  • Theory of the Superregenerative Amplifier

    Publication Year: 1949, Page(s):29 - 33
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    A very general solution of a superregenerative circuit from which reception of almost any type of modulation can be analyzed is derived. Familiarity with this impedance method of analysis should result in a clear physical picture of superregenerator operation. Examples are worked out on the basis of an ideal control wave form, revealing the fundamental limitations inherent in a super-regenerative ... View full abstract»

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  • Some Slow-Wave Structures for Traveling-Wave Tubes

    Publication Year: 1949, Page(s):34 - 40
    Cited by:  Papers (20)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3016 KB)

    A comparison of four slow-wave propagating structures for traveling-wave tubes is made. Recent experimental performance of several types of tubes using two of these circuits is given. Amplifier performance of helix tubes at 10,000 Mc, and wide-tuned oscillator performance (1.5 to 1) with second-harmonic output around 20,000 Mc are described. The analysis, construction, and performance of a 10,000-... View full abstract»

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  • Correction

    Publication Year: 1949, Page(s): 40
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  • A Theory on Radar Reflections from the Lower Atmosphere

    Publication Year: 1949, Page(s):41 - 43
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    A theory is presented, supported by several sample sets of data, which indicate that the curious phenomenon dubbed "angels" (radar reflections from the lower atmosphere) may be attributed to sharp changes in the dielectric constant. The required magnitudes of the changes are computed from reflection theory and compared to sample meteorological data obtained from rapid-response instruments. The nea... View full abstract»

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  • Predicting Maximum Usable Frequency from Long-Distance Scatter

    Publication Year: 1949, Page(s):44 - 47
    Cited by:  Papers (3)
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    A method of predicting the maximum usable frequency by means of observation of long-distance (2F) scatter is presented. Thelocations of the scattering sources are fixed by comparison of experimental observation with theoretical calculations. View full abstract»

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  • Square-Wave Analysis of Compensated Amplifiers

    Publication Year: 1949, Page(s):48 - 58
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    A complete analysis of a single-stage compensated video-frequency amplifier is presented. In this amplifier high-frequency compensation is obtained by the use of a shunt peaking coil in series with the plate load resistance, and low-frequency compensation is obtained by using a resistance-capacitance network in series with the plate load resistance. Both square-wave and sine-wave input voltages to... View full abstract»

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  • Correction

    Publication Year: 1949, Page(s): 58
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  • Contributors to the Proceedings of the I.R.E.

    Publication Year: 1949, Page(s): 59
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  • Correspondence

    Publication Year: 1949, Page(s):60 - 61
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  • Institute news and radio notes

    Publication Year: 1949, Page(s):62 - 66
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  • Books

    Publication Year: 1949, Page(s): 66
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Aims & Scope

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

Full Aims & Scope