By Topic

IRE Transactions on Microwave Theory and Techniques

Issue 4 • Date October 1958

Filter Results

Displaying Results 1 - 25 of 30
  • [Front cover - Oct. 1958 [T-MTT]]

    Publication Year: 1958, Page(s):f1 - f2
    Request permission for commercial reuse | PDF file iconPDF (115 KB)
    Freely Available from IEEE
  • Index, IRE Transactions on Microwave Theory and Techniques, Volume MTT-6, 1958

    Publication Year: 1958, Page(s):i - v
    Request permission for commercial reuse | PDF file iconPDF (456 KB)
    Freely Available from IEEE
  • Table of contents (Oct. 1958 [T-MTT])

    Publication Year: 1958, Page(s): 339
    Request permission for commercial reuse | PDF file iconPDF (82 KB)
    Freely Available from IEEE
  • Biography - Eugene G. Fubini

    Publication Year: 1958, Page(s): 340
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (210 KB)

    Eugene G. Fubini (A'36-SM'46-F'54) was born on April 19, 1913 in Turin, Italy. He received the Ph.D. degree from the University of Rome, Italy, in 1933. Associated with the National Electric Institute of Italy from 1936 to 1938, he also worked prior to World War I, in the Short-Wave Division, General Engineering Department, of the Columbia Broadcasting System. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Plea for Simplification

    Publication Year: 1958, Page(s):341 - 342
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (179 KB)

    Handbook engineering is becoming more and more common in our laboratories and the distance is increasing between the engineer faced with the practical problem and the professional theoretical man. The widening of the practice-theory gap seems to be universal throughout our industry: our efficiency is reduced and progress made more difficult. The people who are compelled to the steady use of hand-b... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microwave Prize (Oct. 1958 [T-MTT])

    Publication Year: 1958, Page(s): 343
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (150 KB)

    The Professional Group on Micvowave Theory and Techniques has established the microwave Prize to recognize annually a significant paper which appeared in the IRE Transactions on Microwave Theory and Techniques. In selecting the paper, consideration is given primarily to the subject of the contribution and secondarily to its presentation. All members and afiliates of PGMTT are eligible for the awar... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • General Treatment of Klystron Resonant Cavities

    Publication Year: 1958, Page(s):344 - 358
    Cited by:  Papers (21)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (931 KB)

    Klystron resonant cavities are treated for general cases and their equivalent circuits are theoretically determined, which allows a fairly accurate estimate of resonant properties. It is shown that a reentrant cavity is expressed as a low-frequency series LCRse circuit or a shunt LCRsh circuit, taking L as the inductance of a toroidal coil with one turn and with a cross secti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Unified Discussion of High-Q Waveguide Filter Design Theory

    Publication Year: 1958, Page(s):359 - 368
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (899 KB)

    For the general design of conventional, high-Q, direct-coupled waveguide filters to be based on the frequency behavior of a classical ladder network prototype, it is necessary and sufficient that the reflecting elements of the filter be replaceable by admittance inverters and that the lengths of transmission line be replaceable by resonant elements. The error due to the latter assumption is of the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Analysis of a Broad-Band Coaxial Hybrid Ring

    Publication Year: 1958, Page(s):369 - 373
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    This paper describes a broad-band coaxial hybrid ring which has excellent isolation and balance characteristics. The ring differs from the conventional hybrid in that the fourth arm has a series-type balun feed and is positioned so that a plane of symmetry exists through two of the arms. Isolation between these arms and balance between the output arms are theoretically independent of frequency. Th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some Notes on the Optimum Design of Stepped Transmission-Line Transformers

    Publication Year: 1958, Page(s):374 - 378
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    This paper describes an optimum design of monotonic stepped transmission-line transformers when the reflection coefficient and the bandwidth ratio are prescribed. For the analysis, discontinuity capacitances and reflection interactions are neglected and the validity of the conclusions is therefore restricted to small steps. The analysis is applicable to a multistep transmission line of which the q... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microwave Semiconductor Switching Techniques

    Publication Year: 1958, Page(s):378 - 383
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (702 KB)

    This paper describes new microwave techniques employing the properties of N-type germanium diode switches. For applications requiring very high isolations, multiple switches are added in tandem. With proper spacing, they form antiresonant cavity circuits. In this case the isolations and insertion losses in db are directly additive. A switch is described which is normally ON and is pulsed OFF. Fina... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microwave Q Measurements in the Presence of Coupling Losses

    Publication Year: 1958, Page(s):383 - 389
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (630 KB)

    In the use of the impedance (Q-circle) method of measuring the cavity Q values, the presence of losses in the coupling network (between the cavity and the available external terminals) is usually neglected. If appreciable losses are present this simplification is not justitied, and its use can lead to significant errors. The losses in any coupling network can be described by means of an equivalent... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Excitation of a Dielectric Rod by a Cylindrical Waveguide

    Publication Year: 1958, Page(s):389 - 393
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (395 KB)

    This paper is a theoretical analysis of the excitation of the lowest circular symmetric TM surface wave along an infinite circular dielectric rod by a metallic cylindrical waveguide coaxial with the rod. The asymptotic expressions for all the fields are obtained by means of the Wiener-Hopf method. The expressions for the total average power transmitted to the surface wave, the total average power ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Investigation of the Properties of Germanium Mixer Crystals at Low Temperatures

    Publication Year: 1958, Page(s):393 - 398
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    Experimental determinations of the noise temperature ratio, IF resistance, and conversion loss of 1N263 germanium mixer diodes operated in an X-band receiver are presented as a function of mixer temperature for the range -196°C to 27°C. No improvement in receiver noise factor was obtained by cooling the mixer to -196°C; however an improvement of 0.3 to 0.6 db was observed by cooling... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Multiple Branch Waveguide Coupler

    Publication Year: 1958, Page(s):398 - 403
    Cited by:  Papers (37)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    A multiple branch directional coupler is discussed for rectangular waveguide applications for series junctions. A design method is developed which is valid for any coupling ratio and any number of branch lines with perfect match and directivity. The frequency response of this type coupler is calculated with the aid of a digital computer. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Coupled-Transmission-Line Directional Couplers

    Publication Year: 1958, Page(s):403 - 410
    Cited by:  Papers (33)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1278 KB)

    Formulas are presented for the design of coupled-transmission-line directional couplers that are rigorous for any value of coupling. Two basic types are treated in detail; the simplest is one-quarter wavelength long at the center of its frequency band, while the other is three-quarter wavelength long. The quarter-wavelength type can be used over an octave of frequencies with approximately consista... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of a Full Waveguide Bandwidth High-Power Isolator

    Publication Year: 1958, Page(s):411 - 414
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    An analysis of the microwave fields in rectangular waveguide indicates that circular polarization of the H-vector components exists at two planes only and the location of these planes is frequency dependent. Also, an examination of Kittel's theory reveals that resonance in ferrites can be made to occur at different frequencies for a constant value of dc magnetic biasing field provided the ferrites... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Simple Artificial Anisotropic Dielectric Medium (Correction)

    Publication Year: 1958, Page(s): 414
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (103 KB)

    Robert E. Collin, author of "A Simple Artificial Anisotropic Dielectric Medium", which appeared on pages 206-209 of the April, 1958 issue of these Transactions, wishes to make the following correction to his paper. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Wide-Band Microwave Transmission Measuring System

    Publication Year: 1958, Page(s):415 - 418
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (414 KB)

    A relatively broad-band balanced microwave measurement system has been built using a traveling-wave tube amplifier which permits automatic phase and amplitude transmission measurements to be made simultaneously as a function of frequency over the frequency range 8.7 kmc-9.6 kmc. A phase accuracy of +-1 degree can be achieved for a change of attenuation in the unknown of 24 db. Loss measurements ca... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Method for Measuring the Directivity of Directional Couplers

    Publication Year: 1958, Page(s):419 - 422
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (306 KB)

    This method of measuring directivity requires the measurement of the ratio of powers delivered to the side arm when the normal input arm is connected alternately to an adjustable sliding termination and a sliding short circuit. The short circuit is phased to yield maximum and minimum responses and the amplitudes are averaged. Two techniques of adjusting the termination may be used, One procedure r... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development of a High-Power L-Band Resonance Isolator

    Publication Year: 1958, Page(s):423 - 428
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (778 KB)

    Waveguide resonance absorption isolators have been developed for use under high peak and average power conditions at L band. Two ferrite materials, one a nickel aluminate ferrite, the other a nickel cobalt ferrite, were developed for this purpose. The characteristics of isolators using these two materials are described. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • High-Power Microwave Filters

    Publication Year: 1958, Page(s):429 - 439
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1110 KB)

    In order to obtain filters capable of handling very high power, the use of radial lines and uniform line discontinuities was investigated as the most promising approach. In this connection, it was necessary to consider the equivalent circuit and interaction for H-type radial line mated at each end to uniform TE10 waveguide for taper angles of 45°. It was found that the equivalent c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Method of Calculating the Characteristic Impedance of a Strip Transmission Line to a Given Degree of Accuracy

    Publication Year: 1958, Page(s):440 - 446
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (671 KB)

    The calculation of the characteristic impedance of the strip transmission line TEM-mode can be reduced to the solution of a two-dimensional potential equation with the strip cross section determining the boundary conditions. Usually this potential equation is solved by conformal mapping, but only the most simple shapes permit exact mapping. Approximations may require considerable work and their ac... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Ferrite Line Width Measurements in a Cross-Guide Coupler

    Publication Year: 1958, Page(s):446 - 450
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    Theoretical and experimental results are presented to show that the line width and the g factor of a spherical ferrite sample can be measured in a cross-guide coupler. The method is much easier to instrument than the usual cavity method and the measurements are much easier to perform. Experimental verification with a cavity perturbation system indicates that the measured quantities are sufficientl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Applications of Directional Filters for Multiplexing Systems

    Publication Year: 1958, Page(s):450 - 453
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    The design of microwave multiplexing systems for frequency channelization of a broad-band microwave spectrum is complicated by problems such as off-resonance mismatch and mutual interaction between adjacent filters. By employing directional filters as basic building blocks, it is possible to construct multiplexing filters with a perfect input match since the input VSWR of a directional filter is t... View full abstract»

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

Aims & Scope

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

Full Aims & Scope