By Topic

Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

  • On Nonuniform Sampling of Bandwidth-Limited Signals

    Publication Year: 1956, Page(s):251 - 257
    Cited by:  Papers (288)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    The purpose of this investigation is to examine four special nonuniform sampling processes in detail, and to deduce some interesting properties of bandwidth-limited signals. The main results are contained in four generalized sampling theorems. These theorems not only contain the nature of determination (unique-specification, over-specification, and underspecification) of signals but also include e... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A practical method of designing RC active filters

    Publication Year: 1955, Page(s):74 - 85
    Cited by:  Papers (139)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    IN THE FREQUENCY range below about 30 cps, the dissipation factors of available inductors are generally too large to permit the practical design of inductance-capacitance (LC) or resistance-inductance-capacitance (RLC) filter networks. The circuits described in the following pages were developed and collected to provide an alternative method of realizing sharp cut-off filters at very low frequenci... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Stability and Power-Gain Invariants of Linear Twoports

    Publication Year: 1962, Page(s):29 - 32
    Cited by:  Papers (198)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    It is shown that the stability of a linear twoport is invariant under arbitrary lossless terminations, under interchange of input and output, and under "immittance substitution," a transformation group involving the arbitrary interchanging of impedance and admittance formulations at both ports. The quantityk = frac {2 Re (gamma_{11}) Re (gamma_{22}) - Re(gamma_{12} gamma_{21})} {|gamme_{12} g... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Design of Filters by Synthesis

    Publication Year: 1958, Page(s):284 - 327
    Cited by:  Papers (47)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4333 KB)

    Following an introduction to the methods and significance of filter design, this paper deals with definitions and filter synthesis according to prescribed attenuation requirements. It shows how the characteristic function for cases of practical importance can be calculated, particularly for the special cases 1) where this function is a power term in the frequency variable (maximally flat), 2) wher... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Theoretical Limitations on the Broad-Band Matching of Arbitrary Impedances

    Publication Year: 1961, Page(s): 165
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 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.
  • Weighted Least-Squares Smoothing Filters

    Publication Year: 1953, Page(s):197 - 203
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (723 KB)

    This paper differs from many others on least square filtering, in that no explicit note has been taken of the noise spectrum, at least no more than is taken when one fits a curve of least squares to a set of data. The concept of a least weighted error, not new in curve fitting, has, to the author's knowledge, never before been applied to a filter-- other workers have uniformly weighted their signa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bounded Real Scattering Matrices and the Foundations of Linear Passive Network Theory

    Publication Year: 1959, Page(s):102 - 124
    Cited by:  Papers (104)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2312 KB)

    In this paper the most general linear, passive, time-invariantn-port (e.g., networks which may be both distributed and non-reciprocal) is studied from an axiomatic point of view, and a completely rigorous theory is constructed by the systematic use of theorems of Bochner and Wiener. Ann-portPhiis defined to be an operator inH_n, the space of all... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Scattering Matrix in Network Theory

    Publication Year: 1956, Page(s):88 - 97
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1192 KB)

    This paper gives an introductory treatment of the concept and uses of scattering methods in network problems. The scattering parameter description for linear networks is defined and the utility of this formalism for problems involving power flow in terminated networks is discussed. Examples of scattering computations for transformer 4-ports, transformerless impedance matching networks and transduc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Nonlinear control systems with random inputs

    Publication Year: 1954, Page(s):9 - 18
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (643 KB)

    The describing-function method for the analysis of nonlinear systems with sinusoidal inputs is interpreted as a mean-square quasi-linearization technique and is generalized to apply to random signals. An amplitude-sensitive (or zero-memory) nonlinearity is interpreted as being approximately equivalent to a linear frequency-insensitive device, and a formula is derived for its equivalent gain. A sim... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Kirchhoff's 'Third and Fourth Laws'

    Publication Year: 1958, Page(s):8 - 30
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2816 KB)

    The epoch-marking publication of Kirchhoff in 1847 is considered in this paper. The rule given by Kirchhoff deserves to be understood by almost all engineers, for it shows how to determine in a simple and straightforward way the system functions of any passive network that contains no transformers. Preliminary to the consideration of the rule and its dual, the basic concepts of combinatorial topol... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Flow-Graph Solutions of Linear Algebraic Equations

    Publication Year: 1959, Page(s):170 - 187
    Cited by:  Papers (88)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1848 KB)

    A weighted, oriented topological structure, denoted byGand called a flow graph, is associated with a set ofmequations innvariables, denoted byKX = 0, such thatKis a connection matrix andXa vertex weight matrix of the associated graph. This same set of equations can be written asA_{-v:}^{-} C(A+)'X = 0where... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Elementary Applications of the Scattering Formalism in Network Design

    Publication Year: 1956, Page(s):97 - 104
    Cited by:  Papers (39)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    The purpose of this paper is to show the considerable simplification introduced by the scattering formalism in the derivation of many theorems of elementary network theory, and to illustrate how often this concept discloses new aspects of known results, or new connections between apparently unrelated properties. The examples chosen are somewhat unrelated, but they have been selected to emphasize t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Survey of Network Realization Techniques

    Publication Year: 1955, Page(s):291 - 297
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    This paper is a brief survey of network realization techniques, from a general point of view. By realization techniques is meant methods of finding explicit networks (configurations and element values) from prescribed characteristics (such as impedance functions) which can be realized exactly. The statement of conditions under which prescribed characteristics are realizable is included in the defi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Noise in Negative-Resistance Amplifiers

    Publication Year: 1960, Page(s):166 - 170
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (503 KB)

    Negative-resistance amplifiers that consist of a noisy negative resistance imbedded in a lossless three-terminal-pair linear network to make a two-port amplifier are analyzed. It is shown that Haus and Adler's noise measureM_{e}, is not constrained to lie between two eigenvalues of a noise matrix, as is the case for bona fide two-port amplifiers. Instead, it is always equal to its optim... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Solution of the Equations Obtained from the Investigation of the Linear Distribution of Galvanic Currents

    Publication Year: 1958, Page(s):4 - 7
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    An English translation is given of Kirchhoff's classic paper: "Ueber die Auflösung der Gleichungen, auf welche man bei der Untersuchung der linearen Vertheilung Galvanischer Ströme geführt wird," Annalen der Physik und Chemie, vol. 72, pp. 497-508, 1847. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • RC Active Networks Using Current Inversion Type Negative Impedance Converters

    Publication Year: 1957, Page(s):140 - 144
    Cited by:  Papers (57)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The RC active filter, which has been established by J. G. Linvill, has a circuit configuration of a negative impedance converter sandwiched between two RC networks. This paper deals with a new circuit also using two RC networks and a converter, but its configuration is based on the parallel or series connection and the converter must be a current-inversion type. The main results obtained here are ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some Topological Considerations in Network Theory

    Publication Year: 1958, Page(s):30 - 42
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1544 KB)

    Elements of the theory of linear graphs which are readily applicable to communication theories are reviewed. These concepts are used to examine the geometrical significance of Kirchhoff's laws. Topological rules are discussed and illustrated which aid not only in formulating solutions for the resistive networks considered by Kirchhoff but also apply to RLC networks, switching networks, and probabi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Emitter-Coupled Differential Amplifier

    Publication Year: 1956, Page(s):51 - 53
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (599 KB)

    The transistor emitter-coupled differential amplifier is analogous to the cathode-coupled differential amplifier and gives promise of excellent utility in transistorized circuitry. Expressions are given for 1) the circuit voltage gain, current gain, and input impedance, 2) the common-mode rejection when the circuit is used as a differencing amplifier, and 3) the signal unbalance when the circuit i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Unsymmetrical Square Wave Power Oscillator

    Publication Year: 1956, Page(s):64 - 65
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 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.
  • Synthesis of Tchebycheff Impedance-Matching Networks, Filters, and Interstages

    Publication Year: 1956, Page(s):163 - 172
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1061 KB)

    Work of R. M. Fano on the theoretical limitations of broad-band impedance-matching is utilized to give a straightforward procedure for synthesis of optimum, lossless, Tchebycheff, wide-band impedance-matching networks for various classes of loads. The loads which are treated consist of an inductance, capacitance, and a resistance (all of arbitrary size) connected in series, parallel, or any of a v... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Matrix Analysis of Oscillators and Transistor Applications

    Publication Year: 1958, Page(s):181 - 188
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    The use of matrix techniques leads to the classification of feedback, harmonic oscillators into four basic types. The oscillator is considered to be made up of two two-port networks: one contains the active element; the other, the feedback network. The equations for oscillation are expressed in terms of the two-port parameters. The method is applied specifically to the Hartley and Colpitts oscilla... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Definitions of 'Bandwidth' and 'Time Duration' of Signals Which Are Connected by an Identity

    Publication Year: 1956, Page(s):286 - 288
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (249 KB)

    In this paper we give definitions of "equivalent time duration"Deltatauand "equivalent bandwidth"Delta fand show that they are connected by a simple reciprocal identity. An example is given and it is shown that the same concepts can be applied in antenna theory to give useful definitions of "equivalent aperture distribution width" and "equivalent angular spectrum." View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two-Stroke Oscillators

    Publication Year: 1960, Page(s):387 - 398
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1408 KB)

    A four-stroke oscillator, whether symmetrical or moderately dissymmetrical, is one in which the linear, conservative elements receive energy from the source two times per period; such are typically a Class A vacuum tube oscillator, a Class C push-pull oscillator, or a clock with anchor escapement. This paper presents a number of nonlinear, second-order differential equations which correspond to tw... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Exact Design of Transistor RC Band-Pass Filters with Pre-scribed Active Parameter Insensitivity

    Publication Year: 1960, Page(s):313 - 320
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    The design of low-frequency band-pass filters by means of RC rejection networks in the feedback path of active elements has long been known. The advent of the transistor has renewed interest in this field and has necessitated a more exact synthesis procedure. The reason for this is that in the classical design, the active element is assumed to be an ideal voltage amplifier with infinite input impe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Synthesis of Band-Pass Ladder Network

    Publication Year: 1958, Page(s):256 - 264
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1032 KB)

    The synthesis of frequency-asymmetrical band-pass filters which do not depend on the reactance-transformation from low-pass filters presents an important problem from the theoretical and practical points of view. In this paper, sufficient conditions are derived for realizing a nondissipative general "band-pass" filter by means of a reactive ladder network which excludes mutual inductance, except f... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Normalized Design of 90° Phase-Difference Networks

    Publication Year: 1960, Page(s):128 - 136
    Cited by:  Papers (40)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB)

    The theoretical background exists for the design of 90° phase-difference networks. Continued interest in the design of such wide-band networks for single-sideband and other applications indicates the need for methods to ease the computational difficulties inherent in network design involving elliptic functions. Concise design data are given in the form of equations, curves and tables which si... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Q Factors of a Transmission Line Cavity

    Publication Year: 1957, Page(s):3 - 5
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (279 KB)

    On investigating the properties of a transmission line cavity, new expressions for theQfactor and logarithmic decrementdeltawere derived, and were compared with the expressions for a single shunt or series LCR circuit. It was expected that the expressions forQand{pi}/{delta}would be very similar, if not the same, as is the case with LCR circuits. That th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Synthesis of a Class of Strip-Line Filters

    Publication Year: 1958, Page(s):104 - 109
    Cited by:  Papers (78)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    This paper describes a design theory for a class of strip-line filters on an insertion loss basis. The important part of the paper is the equivalent transformations showing the close correspondence between lumped and coupled-line distributed parameter circuits. An introduction is provided for clarification. Line type, low-pass ladder, high-pass ladder, and band-pass ladder type filters are realize... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Problem of Phase Equalization

    Publication Year: 1959, Page(s):272 - 277
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    The equalization of the insertion-phase vs frequency characteristics of low-pass filters and low-pass like networks is considered in the article. A method is described for maximally-flat equalization by minimum-pass or all-pass equalizers. The method can be readily extended to a nearly equal-ripple approximation by using Darlington's method of Tchebycheff polynomial series. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • High-Frequency High-Power Operation of Tunnel Diodes

    Publication Year: 1961, Page(s):416 - 425
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1120 KB)

    The operation of oscillators using high-current tunnel diodes above their self-resonant frequency is presented. General stability conditions of the tunnel diode, including external circuits (lumped and distributed), are discussed. Based on a nonlinear analysis of a tunnel-diode oscillator, the power generated by the diode, the power dissipated within the diode and the power delivered to an externa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An N-Stage series Transistor Circuit

    Publication Year: 1956, Page(s):44 - 51
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1056 KB)

    A description is given of some of the characteristics of a circuit wherein a number of transistors are connected so that the sum of their collector to emitter voltages appears across a common load. This circuit permits large output voltage swings to be obtained and provides a means for adding the power outputs of a number of traits. The circuit is analyzed as a cascade of common base stages with a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • First-Order Estimation and Precorrection of Parasitic Loss Effects in Ladder Filters

    Publication Year: 1962, Page(s):385 - 399
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1424 KB)

    A method of estimation and approximate precompensation for the effects of element losses in resistance-terminated LC circuits is presented. Some new theorems are utilized for the special case of ladder networks. The process is valid for a nonuniform distribution of losses; there is, however, a limit to the amount of loss that can be compensated for. The procedure is based on a simple expression gi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 'Complementary' Signals and Orthogonalized Exponentials

    Publication Year: 1962, Page(s):362 - 370
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (919 KB)

    When a signal is approximated by a finite set of component signals which span a subspacePhi, the least-square approximation may be interpreted geometrically in signal space as the projection of the true signal vector upon this finite dimensional subspace. In case the component signals are one-sided exponentials, the projection operators may be realized by simple physical filters followi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On Limitations of Broad-Band Impedance Matching without Transformers

    Publication Year: 1962, Page(s):125 - 132
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (910 KB)

    The basic work of Fano on the limitations for the synthesis of broad-band matching networks is extended to include some relations for determining resistance transformation ratio possible in the band-pass case. Fano's results are used to determine the load (or source) reactance possible and then to synthesize an optimum network. The relationships between the reflection coefficient, order of approxi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Negative-Impedance Converters

    Publication Year: 1957, Page(s):124 - 131
    Cited by:  Papers (40)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    The conditions under which an active device exhibits an input impedance at one terminal pair which is exactly the negative of the load impedance connected to the other terminal pair are discussed. There are an infinite number of ways by which such a device, which is called a negative-impedance converter (NIC), can be made. One of the limits of this set is represented by a transistor circuit which ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • About Such Things as Unistors, Flow Graphs, Probability, Partial Factoring, and Matrices

    Publication Year: 1957, Page(s):90 - 97
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB)

    The purpose here is to point out three things. 1) Topological circuit analysis, in which we look for trees, and topological flow-graph analysis, in which we look for loops, are intimately related, since both have to do with simultaneous linear algebraic equations. The intimate relationship becomes an indentity when we deal with Markoff probability diagrams, for which the circuit model of the probl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Study of Rough Amplitude Quantization by Means of Nyquist Sampling Theory

    Publication Year: 1956, Page(s):266 - 276
    Cited by:  Papers (138)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    Quantization is an operation that takes place when a physical quantity is represented numerically. It is the assignment of an integral value to a physical quantity corresponding to the nearest number of units contained in it. Quantization is like "sampling-in-amplitude," which should be distinguished from the usual "sampling-in-time." The probability density distribution of the signal is sampled i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Nonlinear Distortion in Feedback Amplifiers

    Publication Year: 1962, Page(s):2 - 6
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (535 KB)

    Consider a feedback amplifierFwith a nonlinear output deviceT_0and an open-loop amplifier A having the same gain and the same output deviceT_0. If the gains of the forward amplifieruand feedback networkbetaare independent of frequency, it is well known that under the usual conditions the nonlinear distortionzetaofFdue to... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Numerical Determination of Cascaded LC Network Elements from Return Loss Coefficients

    Publication Year: 1958, Page(s):356 - 359
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (435 KB)

    The data for describing the behavior of a lossless network and for synthesizing a network which exhibits that behavior can be presented in many ways. One of the lesser used descriptions is the Taylor series expansion insof the return loss about a transmission zero. As is well known, a return loss is the natural logarithm of the reciprocal of the reflection coefficient as measured betwee... View full abstract»

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

    Publication Year: 1960, Page(s):50 - 68
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1520 KB)

    The main objective of this paper is to present a brief survey of the theory of linear, passive, time-invariant n-ports both from an axiomatic standpoint and a synthesis point of view. hthe first approach the n-port is defined in terms of its behaviour in real-time and its steady-state behaviour is deduced as a logical consequence. In the second approach the network is restricted, apriori, to be of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Positive Real Functions of Several Variables and Their Applications to Variable Networks

    Publication Year: 1960, Page(s):251 - 260
    Cited by:  Papers (56)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (984 KB)

    This paper is concerned with networks containing variable parameters. The concepts of multivariable positive real function, multivariable reactance function, and multivariable positive real matrix are introduced, and it is shown that these concepts are useful for dealing with a wide class of variable parameter networks. Several theorems on these functions are established. Extensions of several con... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Identification Problem

    Publication Year: 1956, Page(s):277 - 281
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (554 KB)

    The identification problem involves the determination of the identity of a black box from the observation of its responses to a set of input signals. In this paper attention is focused on the identification of zero-memory multipoles and two-poles of classn_1. The test signals are sine waves of different amplitudes and frequencies, and the measured quanity is the describing function of t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Equivalent Distributed RC Networks of Transmission Lines

    Publication Year: 1962, Page(s):247 - 251
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (470 KB)

    There are any number of pairs of resistance and capacitance density functions, i.e.,r(x)andc(x), which can provide the same electrical performance as a given distributed RC laddernetwork. In general these equivalent networks will have different lengths. A criterion for equivalence of density functions is expressed in the following: Networks with the samerto... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two-Terminal Analysis and Synthesis of Junction Transistor Multivibrators

    Publication Year: 1956, Page(s):26 - 38
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1408 KB)

    The basic junction-transistor multivibrator circuit is analyzed from the point of view of a circuit designer who Wishes to know: (a) how to predict the performance of a particular configuration, and (b) how to synthesize a multivibrator circuit, which may be either astable, bistable, or monostable, from a given set of specifications. The analytical method consists of breaking the multivibrator cir... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Riccati's and Bernoulli's Equations for Nonuniform Transmission Lines

    Publication Year: 1961, Page(s):359 - 360
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 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.
  • Theoretical Limitations on the Gain-Bandwidth Product of Three-Terminal Networks

    Publication Year: 1959, Page(s):224 - 228
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Wherever parasitic impedances are found shunting the terminals of a network, certain limitations on the electrical behavior of this network can be found. Typically, these parasitic impedances might represent a transistor, vacuum tube, or some other loading effect. In this paper, theoretical limitations are derived for the gain-bandwidth product of passive linear three-terminal networks (not necess... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of Mellin and Hankel Transforms to Networks with Time-Varying Parameters

    Publication Year: 1959, Page(s):197 - 208
    Cited by:  Papers (18)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    Integral transform techniques for solving linear integro-differential equations can provide insight and flexibility in solving physical problems, especially network problems. The type of differential equation which describes the physical system will dictate the transform that should be applied to simplify the solution and this paper deals with two transforms, namely, the Mellin transform and the H... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Unified Approach to Two-Terminal Network Synthesis

    Publication Year: 1961, Page(s):153 - 164
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    The problem of two-terminal immittance function realization is considered in terms of the reflection coefficient. A conceptually basic method of synthesis is developed which has important implications in exact and approximate synthesis techniques. Consideration of the practical shortcomings of this method lead directly to the standard methods of exact synthesis which are demonstrated to be all app... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of Periodic Filters with Stationary Random Inputs

    Publication Year: 1959, Page(s):330 - 334
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (447 KB)

    A periodic filter is one whose frequency characteristic is periodic in frequency. Examples are delay-line cancellers for moving-target indication and delay-line sweep integrators.Z-transform techniques have proved useful in the analysis and synthesis of these filters when determinate inputs are involved. The determination of the mean square output and other statistical properties with r... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On Networks without Ideal Transformers

    Publication Year: 1956, Page(s):179 - 182
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (479 KB)

    In the above paper necessary conditions for a matrix to be an impedance or admittance matrix of pure resistancenports are given. The results are then applied to RLC networks for real positive values of the complex frequency, and to the most general linear reciprocal networks without ideal transformers at zero frequency. Some properties of the matrices fulfilling the above conditions are... View full abstract»

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