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Microwave Theory and Techniques, IRE Transactions on

Issue 3 • Date July 1957

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  • [Front cover - Jul. 1957 [T-MTT]]

    Publication Year: 1957 , Page(s): f1 - f2
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    Freely Available from IEEE
  • Table of contents (Jul. 1957 [T-MTT])

    Publication Year: 1957 , Page(s): 171
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  • Biography - Sergei Alexander Schelkunoff

    Publication Year: 1957 , Page(s): 172
    Request Permissions | Click to expandAbstract | PDF file iconPDF (228 KB)  

    Sergei Alexander Schelkunoff was born in Russia in 1897. In the early years of his primary and secondary education he was interested in almost everything except mathematics which he would not have passed at all if it were not for the kindness of his teachers. View full abstract»

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  • Microwaves and Mathematics

    Publication Year: 1957 , Page(s): 173
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (128 KB)  

    Mathematics and mathematicians play an essential role in the development of science and engineering. This is particularly conspicuous in the case of electromagnetic theory and microwave engineering. In the preface to his famous treatise, Maxwell refers to Gauss as the man who " . . . brought his powerful intellect to bear on the theory of magnetism, and on the methods of observing it, and [who] no... View full abstract»

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  • Well Done, Ted

    Publication Year: 1957 , Page(s): 174
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    We are all indebted to Ted Saad for his three years of tireless work as editor of our magazine. It does not take more than a brief glance through these pages to see what an exhausting time-consuming job it must be to both edit and coordinate the material for such a highly technical and valuable publication. View full abstract»

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  • A Modified Equal-Element Band-Pass Filter

    Publication Year: 1957 , Page(s): 175 - 176
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (160 KB)  

    A method is presented whereby considerable improvement in the frequency response of a five-stage, equal-element waveguide filter can be realized while preserving nearly all the structural simplicity of this realization. It is shown that by increasing the loaded Q of the center resonant element of a five-stage, equal-element filter, the pass band ripple can be appreciably reduced and the skirt sele... View full abstract»

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  • Application of Rayleigh-Ritz Method to Dielectric Steps in Waveguides

    Publication Year: 1957 , Page(s): 177 - 184
    Cited by:  Papers (8)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (669 KB)  

    The Rayleigh-Ritz method is applied to obtain approximations to the first N eigenfunctions and corresponding eigenvalues in an inhomogeneously filled rectangular waveguide. These approximate eigenfunctions are then used to obtain a solution for the reflection and transmission coefficients at the junction of an empty and partially filled waveguide. Theoretical and experimental results are given for... View full abstract»

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  • Coupling through an Aperture Containing an Anisotropic Ferrite

    Publication Year: 1957 , Page(s): 184 - 191
    Cited by:  Papers (5)
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    Coupling through an aperture containing anisotropic ferrites is investigated theoretically by a simple extension of Bethe's hole coupling theory to include the dipole moment of the body in the aperture. The magnetic dipole moment of the ferrite body is ordinarily a vector but becomes a tensor upon the application of a field. This new theory is applicable to any situation where Bethe's small-hole c... View full abstract»

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  • An Adjustable Sliding Termination for Rectangular Waveguide

    Publication Year: 1957 , Page(s): 192 - 194
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (553 KB)  

    A new adjustable sliding termination for rectangular waveguide has been developed. The termination is of simple design and can easily be adjusted to have reflection coefficients from zero to nearly unity in magnitude and any desired phase. In addition to the usual applications of adjustable sliding terminations for rectangular waveguide, it provides a suitable design for an adjustable transferor s... View full abstract»

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  • Field Displacement Isolators at 4,6,11, and 24 KMC

    Publication Year: 1957 , Page(s): 194 - 198
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (662 KB)  

    Performance of ferrite field displacement isolators at various frequency bands is described. Single and double-slab isolaton have been constructed in rectangular waveguide. Four single-slab isolators are reported in the following frequency bands: 3700-4200 mc; 5925-6425 mc; 10,700-11,700 mc and 23,500-24,470 mc; one double-slab isolator is described in the frequency range 10,700-11,700 mc. View full abstract»

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  • A Method of Producing Broad-Band Circular Polarization Employing an Anisotropic Dielectric

    Publication Year: 1957 , Page(s): 199 - 203
    Cited by:  Papers (15)  |  Patents (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (903 KB)  

    A procedure is described whereby it is possible to design circular polarizers for both waveguides and in window form to be used over a broad band of frequencies. The difference in phase constants for two mutually orthogonal E fields while propagating in an anisotropic dielectric is combined with the effect due to guide wall spacing to obtain a reasonably constant differential phase constant for th... View full abstract»

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  • Errors in a Magic-Tee Phase Changer

    Publication Year: 1957 , Page(s): 204 - 207
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (362 KB)  

    This paper recalls the basic properties of a magic-tee and how it can be used as a linear phase changer. An analysis of the symmetrical magic-tee phase changer is made, which shows that nonlinearities of the phase shift and amplitude modulation are second and higher order effects caused by small mismatches of the structure. Also, some qualitative comments are made on the errors of an asymmetrical ... View full abstract»

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  • Excess Noise in Microwave Crystal Diodes Used As Rectifiers and Harmonic Generators

    Publication Year: 1957 , Page(s): 208 - 212
    Cited by:  Papers (5)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (475 KB)  

    Excess noise produced by microwave excitation of silicon crystal diodes was studied for operation of the crystal as a detector and as a microwave harmonic generator. The noise appears at the detector terminals and also as noise sidebands of the microwave harmonic, thus degrading the spectral purity of the harmonic relative to that of the fundamental. Possible models of the processes involved are p... View full abstract»

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  • Exponential Transmission Lines as Resonators and Transformers

    Publication Year: 1957 , Page(s): 213 - 217
    Cited by:  Papers (20)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (338 KB)  

    An attempt has been made to analyze the theory of an exponential transmission line from its complex reflection coefficient's standpoint and to indicate how the characteristics of an exponential line can be completely represented for any frequency with the help of the Smith Chart. It is shown that the optimum design parameters of an exponential transmission line which maybe used as a transformer, w... View full abstract»

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  • Rectangular and Ridge Waveguide (Correction)

    Publication Year: 1957 , Page(s): 217
    Request Permissions | Click to expandAbstract | PDF file iconPDF (67 KB)  

    Tore N. Anderson, author of the paper "Rectangular and Ridge Waveguide," which appeared on pages 201-209 of the October, 1956 issue of these Transactions, regrets the omission of the following reference. View full abstract»

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  • The Advantages of Expressing Standing-Wave Ratio in Decibels (Correspondence)

    Publication Year: 1957 , Page(s): 218
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (59 KB)  

    It has been the practice at Wheeler Laboratories for the past ten years to express standing-wave ratio in decibels as opposed to a numerical ratio. So far as we are aware, this practice first evolved in the Bell Telephone Laboratories. View full abstract»

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  • Contributors (Jul. 1957 [T-MTT])

    Publication Year: 1957 , Page(s): 219 - 220
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1957 , Page(s): b1 - b2
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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