By Topic

Proceedings of the IRE

Issue 12 • Date Dec. 1949

Filter Results

Displaying Results 1 - 25 of 31
  • Table of contents

    Publication Year: 1949 , Page(s): 1361
    Save to Project icon | Request Permissions | PDF file iconPDF (231 KB)  
    Freely Available from IEEE
  • Haraden Pratt, Secretary, 1943-1949

    Publication Year: 1949 , Page(s): 1362
    Save to Project icon | Request Permissions | PDF file iconPDF (1056 KB)  
    Freely Available from IEEE
  • IRE Standards Publication Policy

    Publication Year: 1949 , Page(s): 1363
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (176 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.
  • Standards on Radio Aids to Navigation: Definitions of Terms, 1949

    Publication Year: 1949 , Page(s): 1364 - 1371
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1656 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.
  • Standards on Railroad and Vehicular Communications: Methods of Testing, 1949

    Publication Year: 1949 , Page(s): 1372 - 1375
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (752 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.
  • Tests for Effects of Mistuning and for Downward Modulation, 1949: Supplement to Standards on Radio Receivers: Methods of Testing Frequency-Modulation Broadcast Receivers, 1947

    Publication Year: 1949 , Page(s): 1376 - 1377
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (216 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.
  • Standards on Piezoelectric Crystals, 1949

    Publication Year: 1949 , Page(s): 1378 - 1395
    Cited by:  Papers (113)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3024 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.
  • Response of Circuits to Steady-State Pulses

    Publication Year: 1949 , Page(s): 1396 - 1401
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2176 KB)  

    A method of calculating the steady-state response of circuits to repeated pulses is given using the method of the steady-state operational calculus. A short table of transforms which have been found useful in these calculations is also presented. The response of several basic circuits to these pulses is obtained and shown as calculated curves, and the calculated curves are then compared with curves obtained experimentally. These curves have been found to be very useful in adjusting circuits to be used with pulses. Several other possible applications are discussed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Diode Phase-Discriminators

    Publication Year: 1949 , Page(s): 1401 - 1404
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (760 KB)  

    Two sinusoidal phase-discriminators are analyzed and it is found that universal curves of their general phase characteristics can be plotted as a function of two parameters. From these curves it is concluded that the resistances in series with the tubes and also the tube resistances themselves are the most important factors in determining optimum performance. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Loading and Coupling Effects of Standing-Wave Detectors

    Publication Year: 1949 , Page(s): 1405 - 1409
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1104 KB)  

    When measuring impedances on transmission lines, insensitive standing-wave detectors have the effect of yielding lower standing-wave ratios than the true values. Double-hump distribution curves are shown to be the result of very tight coupling of the detector. Detectors than can be represented by a susceptance component may indicate unsymmetrical distribution curves. Sensitive detectors used on transmission lines having low power levels can introduce tight coupling effects. Conditions are given for a loosely coupled detector. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analogue Studies of Losses in Reflex Oscillator Cavities

    Publication Year: 1949 , Page(s): 1409 - 1418
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1856 KB)  

    An analysis is made which shows the method of applying the network analogue to the investigation of the effect of dielectric and wall losses on cavity-resonator behavior. The Q and shunt resistance of re-entrant cavities operating in the first- and second-order TM0type modes are investigated. The condition for a zero of shunt resistance is determined. Experimental resuilts are discussed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Beam-Loading Effects in Small Reflex Klystrons

    Publication Year: 1949 , Page(s): 1419 - 1423
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1064 KB)  

    Beam-loading effects im small reflex klystrons have been measured experimentally by the use of electronic tuning data. They are found to be far greater than predicted by published analyses and to vary more or less linearly with total oscillator load, a variation not previously predicted. An analysis of beam-loading effects produced by secondary electrons ejected into the intergrid space by the main electron stream is found to predict large loading and linear variation with load, and to allow the possibility of negative beam loading. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fluctuation Phenomena Arising in the Quantum Interaction of Electrons with High-Frequency Fields

    Publication Year: 1949 , Page(s): 1424 - 1426
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (544 KB)  

    On the basis of a quantum-mechanical analysis by Smith of the interaction of an electron beam with an oscillating resonant cavity, the fluctuations in energy flow in the beam have been analyzed. The expressions for the classical and quantal cases are compared and it is concluded that, under extreme limiting conditions of operation, a just perceptible difference might be observed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design Procedures for Pi-Network Antenna Couplers

    Publication Year: 1949 , Page(s): 1427 - 1432
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (856 KB)  

    The design of reactive pi-networks for transforming a wide range of complex load impedance into a fixed resistance shunted by a tuned circuit is subjected to a thorough investigation. A very significant result is the complete analogy which is established between the analysis and design of the pi-network and the equivalent manipulation of a group of simple geometrical figures. View full abstract»

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

    Publication Year: 1949 , Page(s): 1432
    Save to Project icon | Request Permissions | PDF file iconPDF (160 KB)  
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Application of IF Noise Sources to the Measurement of Over-all Noise Figure and Conversion Loss in Microwave Receivers

    Publication Year: 1949 , Page(s): 1433 - 1437
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1064 KB)  

    The "noise diode" technique is now well-established for the absolute measurement of receiver noise figure at frequencies up to about 300 Mc. A method is described of extending this technique to much higher frequencies, using a frequency changer to produce the required rf test signal from an if noise source. An experimental procedure has been developed which enables the signal level to be accurately evaluated, subject to such limitations as those of Dicke's reciprocity theorem which are of little practical significance for the applications so far considered. As in the low-frequency case, measurements are in general independent of receiver bandwidth, there is no stray radiation problem, and the receiver output indicating device may follow any law within wide limits. The necessary components are easy to construct and can be calibrated without the use of additional apparatus. The system is particularly well suited to mixer crystal measurements since both conversion loss and over-all noise figure can be measured with equal facility, and the latter is readily analyzed in terms of conversion loss and noise ratio. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Effect of Antenna Size and Height above Ground on Pointing for Maximum Signal

    Publication Year: 1949 , Page(s): 1438 - 1442
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1024 KB)  

    During April, 1947, the Electrical Engineering Research Laboratory of The University of Texas made measurements of the variation of signal strength and phase of 3.2-centimeter radio waves with heights up to 200 feet for a 27-mile desert path in Arizona. This paper presents the results of a study of the vertical angles-of-arrival which would be indicated by pointing antennas of various sizes and at various heights for maximum signal strength in three of these measured fields. A comparison is also made of the response of the antennas for various angles of tilt in these measured fields with the response of the antennas in an assumed field made up of two plane waves components. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of Tunable Resonant Cavities with Constant Bandwidth

    Publication Year: 1949 , Page(s): 1442
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (288 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.
  • Contributors to the Proceedings of the I.R.E.

    Publication Year: 1949 , Page(s): 1443 - 1444
    Save to Project icon | Request Permissions | PDF file iconPDF (2117 KB)  
    Freely Available from IEEE
  • Correspondence

    Publication Year: 1949 , Page(s): 1444 - 1447
    Save to Project icon | Request Permissions | PDF file iconPDF (2640 KB)  
    Freely Available from IEEE
  • Institute news and radio notes

    Publication Year: 1949 , Page(s): 1448 - 1452
    Save to Project icon | Request Permissions | PDF file iconPDF (1372 KB)  
    Freely Available from IEEE
  • Books

    Publication Year: 1949 , Page(s): 1452 - 1454
    Save to Project icon | Request Permissions | PDF file iconPDF (880 KB)  
    Freely Available from IEEE
  • Clarity in Technical Writing

    Publication Year: 1949 , Page(s): 1455 - 1456
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (672 KB)  

    Logical sequence of ideas and simplicity of literary style are the fundamental basis for clar ity in technical writing. If a paper follows the general form of Introduction, development, application, and conclusion, it should be readily understandable. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Engineer and Industry

    Publication Year: 1949 , Page(s): 1456 - 1458
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (920 KB)  

    This paper is directed to the engineer just beginning his career in an industrial firm. Information regarding the organization of such firms and how the engineer fits into it is covered. His typical reactions observed over the years are shown. The importance of co-operation, human relations, and trust in others is emphasized. The time required between the birth of an idea and a product is reviewed in narrative form. The importance of the engineer in society is given. There have been many discussions of the technical requirements of an engineer, but not enough has been said about the other parts of an organization into which an engineer must fit. This paper is intended to explain some of the reactions of an engineer in industry, and to present the views of both the management and the engineer. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Beginning a Career in Engineering

    Publication Year: 1949 , Page(s): 1459 - 1461
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1024 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.

Aims & Scope

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

Full Aims & Scope