By Topic

Proceedings of the IRE

Issue 12 • Date Dec. 1957

Filter Results

Displaying Results 1 - 25 of 32
  • Contents

    Publication Year: 1957 , Page(s): 1583 - 1584
    Request Permissions | PDF file iconPDF (1058 KB)  
    Freely Available from IEEE
  • Poles and Zeros

    Publication Year: 1957 , Page(s): 1585
    Cited by:  Papers (2)
    Request Permissions | PDF file iconPDF (215 KB)  
    Freely Available from IEEE
  • Howard R. Hegbar, Director, 1957-1958

    Publication Year: 1957 , Page(s): 1586
    Request Permissions | PDF file iconPDF (839 KB)  
    Freely Available from IEEE
  • Scanning the issue

    Publication Year: 1957 , Page(s): 1587
    Request Permissions | PDF file iconPDF (319 KB)  
    Freely Available from IEEE
  • On the Nature of the Electron

    Publication Year: 1957 , Page(s): 1588 - 1598
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3299 KB)  

    In this paper the concept of the electron as a fundamental particle of modern physics is discussed in relation to Pauli's exclusion principle, wave mechanics, the uncertainty principle, and relativity. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Thin Cathode-Ray Tube

    Publication Year: 1957 , Page(s): 1599 - 1604
    Cited by:  Papers (9)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2276 KB)  

    A new type of cathode-ray tube typically only a few inches thick is described. The beam is injected parallel to one edge of the thin tube and caused to pass through two right-angle deflections: the first sends the beam into the region between the front and back tube surfaces, and the second turns it into the phosphor-coated front surface. A brief analysis of the deflection-focusing action is prese... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New Microwave Repeater System Using a Single Traveling-Wave Tube as Both Amplifier and Local Oscillator

    Publication Year: 1957 , Page(s): 1604 - 1611
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3556 KB)  

    This paper describes a new microwave repeater system using one traveling-wave tube as both amplifier and local oscillator. The new system uses a minimum number of vacuum tubes and requires no afc because of the inherent stability of the local oscillator frequency due to the use of a high-Q cavity resonator in the feedback circuit of the traveling-wave tube. The result is marked simplicity in the o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • IRE Standards on Graphical Symbols for Semiconductor Devices, 1957

    Publication Year: 1957 , Page(s): 1612 - 1617
    Request Permissions | Click to expandAbstract | PDF file iconPDF (453 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The 1959 International Radio Conference

    Publication Year: 1957 , Page(s): 1618 - 1621
    Request Permissions | PDF file iconPDF (900 KB)  
    Freely Available from IEEE
  • The International Radio Consultative Committee

    Publication Year: 1957 , Page(s): 1622 - 1628
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1583 KB)  

    The International Radio Consultative Committee (CCIR) will hold its Ninth Plenary Assembly in the United States beginning April 1, 1959. The Eighth Plenary Assembly was held in Warsaw, Poland, from August 9 through September 13, 1956. It was attended by approximately 400 delegates, representatives, experts, and observers from some forty countries that are members of the International Telecommunica... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A New Wide-Band Balun

    Publication Year: 1957 , Page(s): 1628 - 1631
    Cited by:  Papers (67)  |  Patents (10)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (862 KB)  

    This paper describes a form of balun which is useful for matching a balanced circuit to an unbalanced circuit of nearly the same impedance over a wide frequency range. The bandwidth increase is obtained by the use of a quarter-wave transmission line section which is placed inside one of the balanced arms, thereby minimizing the over-all physical length. It is shown that a practical balun of this t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Correction

    Publication Year: 1957 , Page(s): 1631
    Request Permissions | PDF file iconPDF (128 KB)  
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Synthesis of Lumped Parameter Precision Delay Line

    Publication Year: 1957 , Page(s): 1632 - 1642
    Cited by:  Papers (13)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1538 KB)  

    In the design of delay lines one can break down the problem into two parts, namely: 1) to provide the required time delay and bandwidth with a least complicated network and 2) to have a good time response. This paper presents such a design technique for precision time domain applications. The network obtained is a tandem connection of a low-pass ladder which provides the shape of time response and... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Principles of JANET-A Meteor-Burst Communication System

    Publication Year: 1957 , Page(s): 1642 - 1657
    Cited by:  Papers (31)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5405 KB)  

    The JANET system of long-range communication employs VHF radio signals which are forward-scattered by the ionized trails of individual meteors. The propagation characteristics and design considerations of such a system are surveyed in this paper, and preliminary operating experience is summarized. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bandwidth Considerations in a JANET System

    Publication Year: 1957 , Page(s): 1658 - 1660
    Cited by:  Papers (17)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (691 KB)  

    Some of the considerations which influence the choice of transmission bandwidth in a JANET system are discussed in this paper. It is shown that the mean rate of transfer of information increases with bandwidth, for bandwidths in the range currently contemplated, in spite of the consequent decrease in the duty cycle. A system designed to maintain a constant snr by varying the bandwidth with receive... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Storage Capacity in Burst-Type Communication Systems

    Publication Year: 1957 , Page(s): 1661 - 1666
    Cited by:  Papers (5)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1176 KB)  

    The relationship between storage capacity and mean rate of transfer of information is derived for a burst communication system of the JANET type. Specific probability distributions are then assumed for the durations of signals and the intervals between signals. An explicit formula for the mean rate as a function of storage capacity is calculated for these probability distributions. The specific di... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Canadian JANET System

    Publication Year: 1957 , Page(s): 1666 - 1678
    Cited by:  Papers (12)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4644 KB)  

    JANET is a point-to-point communication system based on the forward scattering of radio waves from meteor trails. The properties of the transmission medium are such that special methods are required to take full advantage of them. Factors influencing system design have been discussed elsewhere; it is the purpose of this paper to desdribe a data handling equipment which has been designed for use on... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Intermittent Communication with a Fluctuating Signal

    Publication Year: 1957 , Page(s): 1678 - 1684
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1367 KB)  

    Intermittent transmission is proposed as a method to combat the effects of signal fading. Message error and average transmission rate are functions of operating bandwidth and threshold signal-to-noise ratio. The method is evaluated for Rayleigh-fading signals, using binary frequency modulation and phase modulation. One variable-bandwidth system is examined. The theoretical advantage (power gain>40... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Utility of Meteor Bursts for Intermittent Radio Communication

    Publication Year: 1957 , Page(s): 1684 - 1693
    Cited by:  Papers (7)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2144 KB)  

    It has been suggested that the transient vhf signal produced by meteor ionization be used for communication, and several groups have been investigating this possibility. Analysis of the meteor bursts measured on the 49.8-mc transmissions from Cedar Rapids, Iowa, to Sterling, Va., implies that useful intermittent communication can be achieved. Transmission experiments in a 100-kc band have not real... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Meteor-Burst System for Extended Range VHF Communications

    Publication Year: 1957 , Page(s): 1693 - 1700
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4698 KB)  

    A low-power burst communication system has been designed and tested, utilizing the intermittent propagation path provided by ionized meteor trails. A test circuit has been installed between Bozeman, Mont. (Montana State College), and Palo Alto, Calif. Details of the burst control techniques and storage devices used to handle the intermittent information flow are discussed along with the over-all s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of Oblique Path Meteor-Propagation Data from the Communications Viewpoint

    Publication Year: 1957 , Page(s): 1701 - 1707
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3882 KB)  

    The characteristics of signals reflected from meteor trails have been extensively measured and analyzed to determine their usefulness in communications. The random nature of meteor sizes, radiants, velocities, time of striking the upper atmosphere, showers, etc., make precise determination of the various desirable propagation parameters difficult; however, gross characteristics such as duration, i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Investigation of Storage Capacity Required for a Meteor-Burst Communications System

    Publication Year: 1957 , Page(s): 1707 - 1709
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (555 KB)  

    The storage capacity requirement of a burst-type communications system is analyzed. Two main categories of storage devices, which correspond to the magnetic tape and magnetic core type units currently in use on burst circuits, are considered. Storage units used in the present Stanford Research Institute meteor-burst system are analyzed to determine the loss in over-all systems efficiency imposed b... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Wavelength Dependence of the Information Capacity of Meteor-Burst Propagation

    Publication Year: 1957 , Page(s): 1710 - 1714
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1395 KB)  

    The discontinuous vhf signal, propagated over ranges up to 2000 km by reflections from meteor ionization trails, makes possible an important new technique for radio communication. With this technique, the required transmitter power and antenna sizes are considerably less than for communication by the continuous vhf scatter signal supported by smaller meteors and other scattering sources in the low... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Directional Characteristics of Meteor Propagation Derived from Radar Measurements

    Publication Year: 1957 , Page(s): 1715 - 1723
    Cited by:  Papers (18)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2139 KB)  

    The directivity of radio reflections from meteor trails and the distribution of trail orientations (radiants) control the directional properties of meteor propagation. Because of the geometrical correspondence between radar and oblique path detection of meteors, the directional properties of meteor propagation can be determined from the range and azimuth distributions of the echoes detected by a r... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Influence of Meteor-Radiant Distributions in Meteor-Scatter Communication

    Publication Year: 1957 , Page(s): 1724 - 1733
    Cited by:  Papers (8)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2426 KB)  

    The relative effectiveness of various regions of the atmosphere in furnishing usable meteor trails is examined on the basis of several distributions of meteor radiants. An idealized distribution in which the radiants lie near the ecliptic is analyzed and the results compared with previous calculations for a uniform radiant distribution. Experimental data on a 250-km link between Knoxville, Tenn., ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

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

Full Aims & Scope