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IRE Transactions on Microwave Theory and Techniques

Issue 4 • July 1961

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  • [Front cover - Jul. 1961 [T-MTT]]

    Publication Year: 1961, Page(s):f1 - f2
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    Freely Available from IEEE
  • Table of contents (Jul. 1961 [T-MTT])

    Publication Year: 1961, Page(s): 277
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    Freely Available from IEEE
  • Report of Advances in Microwave Theory and Techniques-1960

    Publication Year: 1961, Page(s):278 - 290
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1880 KB)

    This is a compendium of the principal advances in the microwave area for the calendar year 1960; only United States journals are included in this report which is not a catalog of all published papers, but rather, is intended to be a semicritical review of the major accomplishments in the field. The report is divided into four major sections which cover, respectively, tube sources, electromagnetic ... View full abstract»

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  • The Short Pulse Behavior of Lossy Tapered Transmission Lines

    Publication Year: 1961, Page(s):290 - 296
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (577 KB)

    An analytic method is given which allows the design engineer to assess rapidly the short pulse characteristics of any given tapered-transmission-line type of pulse transformer. The method allows inclusion of both skin-effect losses and losses which are independent of frequency. The effects of mismatching at either end are shown to be as important as the taper function of the line itself. The resul... View full abstract»

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  • A Waveguide Quadruplexer System

    Publication Year: 1961, Page(s):297 - 306
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1002 KB)

    Practical design considerations are presented for a relatively simple four-channel wave guide branching system. The most important electrical characteristic of this system is an extremely low pass-band reflection coefficient (better than 1.5 per cent in 30-Mc band) which has only very small variations with the environmental conditions. View full abstract»

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  • Some Recent Findings in Microwave Storage

    Publication Year: 1961, Page(s):306 - 312
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1347 KB)

    This paper describes an experimental investigation of frequency memory in a recirculating amplifier storage device. The objective of the investigation was to determine what mechanism caused injected energy to shift to preferred storage frequencies. Using fast-acting crystal switches, the output energy was selectively viewed, and it was found that the energy in any circulation when viewed separatel... View full abstract»

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  • Excess Noise in Microwave Detector Diodes

    Publication Year: 1961, Page(s):312 - 314
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (278 KB)

    The dependence of available excess noise in type microwave crystal-diode rectifiers on applied microwave power was measured. This may be approximated by a power law with stants characteristic of the particular crystal. As a consequence of the dependence of both excess noise and dc rectified power on power level, there is a level which minimizes the ratio of these tities. Similarly, in the case of ... View full abstract»

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  • Quantum Fluctuations in Microwave Radiometry

    Publication Year: 1961, Page(s):315 - 321
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (778 KB)

    This paper assesses the possible significance of the quantum nature of electromagnetic radiation in limiting the measurement accuracy attainable with a microwave radiometer. Analogies are shown to exist between the form of a formula describing fluctuations in the radiometer output, and both a formula describing the radiometer input signal, and also, a formula describing the output of a photocell d... View full abstract»

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  • On the Resolution of a Class of Waveguide Discontinuity Problems by the Use of Singular Integral Equations

    Publication Year: 1961, Page(s):321 - 332
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1027 KB)

    It is shown that a considerable number of solutions of rectangular waveguide problems appearing in the literature are all special cases of a general treatment focused around the known solution of a singular integral equation. In terms of this a number of typical results are re-examined. The method is then applied to four new configurations, and the range of application and the limitations are exam... View full abstract»

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  • A Dielectric Surface-Wave Structure: The V-Line

    Publication Year: 1961, Page(s):332 - 337
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (617 KB)

    Properties of the V-line, a wedge-shaped surface-wave structure comprising a cylindrical dielectric binding medium of sectorial cross section supported by two conducting plates, are considered in terms of its higher-order hybrid modes of propagation. Practical modifications of the ideal structure are emphasized. Design curves and equations are presented to determine various propagation parameters ... View full abstract»

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  • Wave Propagation in a Medium with a Progressive Sinusoidal Disturbance

    Publication Year: 1961, Page(s):337 - 343
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (621 KB)

    A recent paper by Simon derives approximate results, employing only three space harmonics, for the propagation characteristics of an electromagnetic wave traveling in a medium possessing a progressive sinusoidal disturbance. A rigorous result is presented here for this same problem, taking into account all of the space harmonics; also, a sufficiency condition for the convergence of this solution i... View full abstract»

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  • A New Broad-Band Absorption Modulator for Rapid Switching of Microwave Power

    Publication Year: 1961, Page(s):343 - 349
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    This paper describes a new technique for obtaining a broad-band absorption modulator for high-speed switching or amplitude modulation of microwave power. This ferrite modulator, an outgrowth of the longitudinal-field rectangular-waveguide phase shifter, has electrical characteristics particularly desirable in a microwave switch. These include a zero-field insertion loss of approximately 0.5 db in ... View full abstract»

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  • Rectangular Waveguide Theoretical CW Average Power Rating

    Publication Year: 1961, Page(s):349 - 357
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    A theoretical CW average power rating, limitation imposed by a temperature rise resulting from power dissipation within the rectangular waveguide walls, can be determined by predicting the rise in temperature. Formulas for the evaluation of the CW average power rating have been developed and are presented here, and the power rating curves are given for the WR-2300 wave-guide (320 Mc) through the W... View full abstract»

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  • Wave Propagation in Coaxial-Cylindrical Slow-Wave Systems (Correspondence)

    Publication Year: 1961, Page(s): 358
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (275 KB)

    Recent interest in E-type traveling-wave tubes, in which a ribbon-shaped electron beam is caused to follow a circular path by balancing the centrifugal force of the particle against a steady radial electric tield force, has led to an investigation of wave propagation in azimuthally reentrant and nonreentrant coaxial-cylindrical slow-wave structures. The study is facilitated by the simplifying appr... View full abstract»

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  • Ring Network Filter (Correspondence)

    Publication Year: 1961, Page(s):359 - 360
    Cited by:  Patents (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (301 KB)

    A filter circuit comprising two ring networks which are connected by two quarter-wavelength lines is described. This circuit has one output with a relatively wide pass band and a second output with a sharp rejection band. A printed microstrip version designed for 1-Gc operation is shown in Fig. 1. Input is at terminal 1, band-pass output at terminal 3, and rejection band output at terminal 2. View full abstract»

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  • A Technique for Obtaining DC Isolation in Coaxial Cable RF Transmission Lines (Correspondence)

    Publication Year: 1961, Page(s): 360
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (161 KB)

    In many applications involving microwave tubes it is desirable to monitor the voltages and currents of the various tube elements. This is particularly true of experimental tubes. The situation may be illustrated by a high voltage pulsed traveling-wave tube in which the. collector and body are operated at or near ground level with the cathode at a negative potential. In order to observe current pul... View full abstract»

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  • Push-Pull Tunnel Diodes (Correspondence)

    Publication Year: 1961, Page(s): 361
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (135 KB)

    Presented in this note is a discussion of the advantages of using a pair of tunnel diodes arranged parallel to the signal and in series to the dc power supply. Large improvements are shown to exist in both dynamic range and large signal stability. View full abstract»

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  • Effects of Ferrite Strip Mounting Positions on Millimeter Wave Isolator Characteristics (Correspondence)

    Publication Year: 1961, Page(s): 362
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (131 KB)

    The position of the ferrite strip in a field displacement type isolator is an important problem. If x and L are defined as the mounting position of the ferrite strip and the width of the rectangular waveguide, respectively, as shown in Fig. 1, then, according to Soohoo, Lax, Fox, et al., and Button, the optimum value of x ranges from 0.095L to 0.27L. The sign of the directivity (backward to forwar... View full abstract»

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  • An L-Band Loop-Type Coupler (Correspondence)

    Publication Year: 1961, Page(s):362 - 363
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (315 KB)

    The design of loop couplers for various loop length has been reported by Lombardini, Schwartz and Kelly. This device is useful for many applications as the over-all length can be held to about 6 inches, whereas a com-parable multihole coupler must be on the order of several feet long. The loop-type device couples a TE10 waveguide mode from a RG-69/U to a TEM mode in a 3/8-inch coaxial l... View full abstract»

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  • The Cutoff Wavelengths of Composite Waveguides (Correspondence)

    Publication Year: 1961, Page(s):363 - 364
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    When electromagnetic waves propagate in waveguides of nonsimple cross section, no exact solution can be obtained by the conventional method of solving the wave equation by separation of variables. In such cases approximations are available such as perturbation methods, variational methods, etc. View full abstract»

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  • A Mechanical Waveguide Hybrid Phase Shifter (Correspondence)

    Publication Year: 1961, Page(s):364 - 365
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    Some interesting results have been obtained on a waveguide-hybrid phase shifter under development for use in an S-band radio-astronomy interferometer antenna. View full abstract»

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  • Rectangular Waveguide Switches (Correspondence)

    Publication Year: 1961, Page(s):365 - 366
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (214 KB)

    Since the first disclosure by Reggia and Spencer of the rectangular waveguide phase shifter, a number of investigators have presented qualitative analyses describing ob-served performances. In general, these authors agree on two phenomena that occur. First, upon application of a longitudinal magnetic field to the ferrite (phase-shifter geometry shown in Fig. 1), there is a "trapping" process where... View full abstract»

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  • Stepped Transformers for Partially-Filled Transmission Lines (Comments)

    Publication Year: 1961, Page(s):366 - 367
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    The use of a lumped equivalent circuit for the transverse section of a waveguide has been used to determine the cutoff frequency of ridged guide. In essence, the transverse section of the guide is equated to an LC tank and the resonant frequency of the tank is determined by the usual formula. Sullivan and Parkes have extended this method to the analysis of a ridged guide partially loaded with diel... View full abstract»

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  • Contributors

    Publication Year: 1961, Page(s):368 - 370
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    Freely Available from IEEE
  • PGMTT News (Jul. 1961 [T-MTT])

    Publication Year: 1961, Page(s): 371
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    There are a few extra copies of the "Digest of Technical Papers" of the 1961 National Symposium still available at $3.00 per copy. These Digests were a PGMTT Symposium "first" and were described as excellent by those who attended. View full abstract»

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Aims & Scope

This Transactions ceased publication in 1962. The current retitled publication is IEEE Transactions on Microwave Theory and Techniques.

Full Aims & Scope