Transactions of the IRE Professional Group on Circuit Theory

Volume CT-1 Issue 2 • June 1954

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Displaying Results 1 - 8 of 8
  • Simultaneous Oscillations in Oscillators

    Publication Year: 1954, Page(s):2 - 8
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (597 KB)

    An oscillator with two degrees of freedom can, under certain conditions, oscillate simultaneously at two different frequencies. The ratio of the two frequencies may be rational (synchronous oscillations) or irrational (asynchronous oscillations). The conditions necessary for 'simultaneous oscillations are discussed for these two cases. The problem is essentially non-linear and cannot be solved by ... View full abstract»

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  • Synthesis of Transfer Functions by Active RC Networks

    Publication Year: 1954, Page(s):8 - 17
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (964 KB)

    The paper considers the synthesis of arbitrary passive transfer functions using stable active RC networks. The work undertaken is oriented toward discussing general methods of synthesis rather than specific design procedures. The structures used consist of single unidirectional feedback loops. These methods, although by no means providing the most general procedure for the synthesis of active netw... View full abstract»

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  • Reciprocity Relations in Active 3-Terminal Elements

    Publication Year: 1954, Page(s):17 - 20
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (386 KB)

    A vacuum-tube or a transistor, operating linearly under small-signal conditions, may be represented as a resistive (i.e., non-reactive) 3-terminal network element. Such an element may be considered as composed of a tri-angle of resistors and a 3-terminal gyrator. If the element is active, at least one of the resistors is negative. The activity or passivity of the element is shown to be dependent o... View full abstract»

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  • Power Gain in Feedback Amplifier

    Publication Year: 1954, Page(s):20 - 25
    Cited by:  Papers (165)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (519 KB)

    A linear three-terminal deviceZis imbedded in a lossless passive network N and the properties of the complete system, as measured at two specified terminal pairs, are described by the open-circuit impedancesZ_{11}, Z_{12}, Z_{21},andZ_22. A search for properties ofZwhich are invariant under the transformation N leads to the quantityU = \frac{|Z_{21}... View full abstract»

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  • Spectra of Waves with Periodic Modulation

    Publication Year: 1954, Page(s):26 - 31
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (417 KB)

    The harmonic analysis of a wave with amplitudea(t)and angle modulating function\psi (t)is simplified for cases in whicha(t)and\psi (t)are periodic and their periods are rationally related. Further simplifications are made when these functions have symmetrical properties. Examples are given to illustrate the procedure. View full abstract»

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  • Network Synthesis and the Moment Problem

    Publication Year: 1954, Page(s):32 - 33
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  • Comments on "What is Nature's Error Criterion?

    Publication Year: 1954, Page(s): 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (105 KB)

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  • The Champions

    Publication Year: 1954, Page(s): 33
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