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IRE Transactions on Microwave Theory and Techniques

Issue 2 • April 1958

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Displaying Results 1 - 25 of 27
  • [Front cover - Apr. 1958 [T-MTT]]

    Publication Year: 1958, Page(s):f1 - f2
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    Freely Available from IEEE
  • Table of contents (Apr. 1958 [T-MTT])

    Publication Year: 1958, Page(s): 129
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  • Biography - Nathan Marcuvitz

    Publication Year: 1958, Page(s): 130
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (201 KB)

    Nathan Marcuvitz was born on December 29, 1913, in New York, N. Y. In 1935 he received the Bachelor's degree in electrical engineering from the Polytechnic Institute of Brooklyn, where he remained as a graduate fellow until 1936. At this time, he joined the RCA Laboratories as a student engineer and subsequently did advanced development work on electron tubes, iconoscopes, and orthicons for televi... View full abstract»

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  • Academic Research Institutes in the Microwave Field

    Publication Year: 1958, Page(s):131 - 132
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    Since World War II, large research institutes have burgeoned forth on the campuses of many colleges and universities throughout the United States. Fulfilling at their inception a national need in time of crisis, they have continued in these less critical times to contribute importantly to the national research program. Their impact on academic curricula has been varied but no less important. The e... View full abstract»

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  • A wide-band double-vane torque-operated wattmeter for 3-cm microwaves

    Publication Year: 1958, Page(s):133 - 136
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (469 KB)

    First Page of the Article
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  • Traveling-Wave Resonators

    Publication Year: 1958, Page(s):136 - 143
    Cited by:  Papers (23)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (729 KB)

    In the first part of the paper, the principles are given which have led to the conception of the traveling-wave resonator, and the calculations enabling its operation to be understood are presented. The second part describes the apparatus in detail and examines it, bearing in mind its use as high-power testing equipment. View full abstract»

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  • Reflection Coefficient of E-Plane Tapered Waveguides

    Publication Year: 1958, Page(s):143 - 149
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (590 KB)

    This paper treats the reflection of linearly and sinusoidally tapered waveguides. In the first part, reflection coefficients of linearly tapered waveguides for dominant modes are calculated. Graphs of the vswr of tapers for different impedance ratios are plotted showing that the vswr does not go to unity at multiples of a half wavelength. In the second part, reflection coefficients of sinusoidally... View full abstract»

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  • Propagation in Ferrite-Filled Microstrip

    Publication Year: 1958, Page(s):150 - 155
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (542 KB)

    The propagation constant of a ferrite-filled microstrip is measured as a function of the longitudinal static magnetic field, The results agree with the analysis by Van Trier of the infinite parallel plane waveguide filled with gyromagnetic media. The analysis is extended to anisotropies greater than 0.5. A simple relationship between propagation constant and anisotropy for the quasi-TEM mode with ... View full abstract»

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  • An Improved Method for the Determination of Q of Cavity Resonators

    Publication Year: 1958, Page(s):155 - 160
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    The various Q factors and circuit efficiency of a cavity resonator can be evaluated from standing-wave measurements on a transmission line or waveguide coupled to the resonator. In the usual method, measurement errors near the half-power points have an unduly large influence on the result. This paper describes a method in which this type of error is avoided. In the new method, vswr and position of... View full abstract»

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  • Characteristic Impedances of the Slotted Coaxial Line

    Publication Year: 1958, Page(s):161 - 166
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (414 KB)

    The characteristic impedance for the two possible TEM modes is calculated for a slotted coaxial line whose outer walls have a zero thickness. Conformal mapping is used in the calculations. The characteristic impedance for a slotted coaxial line is calculated in an approximate way for outer wall thickness different from zero. View full abstract»

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  • Velocity Modulation of Electromagnetic Waves

    Publication Year: 1958, Page(s):167 - 172
    Cited by:  Papers (84)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    This paper deals with electromagnetic wave propagation through dielectric media whose propagation constants vary as a function of time. If the parameters of the medium cannot respond to changes in the electric and magnetic fields of the propagating wave, the fields within such media will be linear. Maxwell's equations are solved for cases in which the scalar permittivity and permeability vary inde... View full abstract»

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  • Heat Loss of Circular Electric Waves in Helix Waveguides

    Publication Year: 1958, Page(s):173 - 177
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (439 KB)

    This paper presents a theoretical calculation of the eddy current losses of circular electric waves in a closely-wound helix waveguide. The wire diameter is assumed large compared to the skin depth, but small compared to the guide diameter and the operating wavelength, so that the fields near the wire are quasistatic and may be determined by conformal mapping. When the wires are in contact, the wa... View full abstract»

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  • The Expansions of Electromagnetic Fields in Cavities

    Publication Year: 1958, Page(s):178 - 187
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (713 KB)

    In the theory of cavity resonators, the assumptions are frequently made that every irrotational function can be represented as the gradient of a scalar and that every divergenceless function can be represented as the rotation of a vector. These are, however, not necessarily correct. This paper corrects these misleading assumptions and describes "the theory of cavity resonators" which supplement th... View full abstract»

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  • Broad-Band Calorimeters for the Measurement of Low and Medium Level Microwave Power I. Analysis and Design

    Publication Year: 1958, Page(s):188 - 194
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    Design considerations for a group of broad-band calorimetric power meters, capable of accurately measuring low (zero to one milliwatt) and medium (zero to 100 milliwatts) power levels over a frequency range from zero to 75,000 mc, are presented. The power meters are of the nonadiabatic, twin, dry-load type and utilize the substitution of dc power. The conflicting requirements imposed upon the desi... View full abstract»

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  • Broad-Band Calorimeters for the Measurement of Low and Medium Level Microwave Power II.Construction and Performance

    Publication Year: 1958, Page(s):195 - 202
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1205 KB)

    The construction and performance of a series of rugged, broad-band twin-Joule calorimeters, using dry loads, are described.These calorimeters operate over the frequency range of 0 to 75,000mc. The over-all measurement error, computed as the rms value of the maximum individual errors from known independent sources, is shown to lie between 1 and 21/2 per cent for power levels between 1 and 100mw. Po... View full abstract»

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  • Amplitude Stabilization of a Microwave Signal Source

    Publication Year: 1958, Page(s):202 - 206
    Cited by:  Papers (39)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (479 KB)

    Recent developments in the microwave field have provided new tools for use in regulating the output amplitude of a microwave signal source. An amplitude or power stabilizer has been constructed at the National Bureau of Standards Boulder Laboratories, using the recently developed self-balancing dc bolometer bridge and a commercially available, electrically controlled, ferrite attenuator which achi... View full abstract»

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  • A Simple Artificial Anisotropic Dielectric Medium

    Publication Year: 1958, Page(s):206 - 209
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (330 KB)

    The anisotropic properties of an infinite stack of thin dielectric sheets separated by another set of thin sheets with a different dielectric constant is investigated. It is shown that the anisotropic properties are brought about because of the two distinct modes of propagation which can exist in such a stacked array of sheets. The limiting forms of the wave solutions and second-order results for ... View full abstract»

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  • Calculation and Measurement of the Noise Figure of a Maser Amplifier

    Publication Year: 1958, Page(s):210 - 214
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    The noise performance of regenerative amplifiers is reviewed and equations are obtained which serve to interpret a measurement of noise from an ammonia molecular beam maser amplifier. The measurement is accomplished by means of a double heterodyne system in which a detuned maser oscillator serves as second local oscillator. The measured noise figure is 3.5 +- 0.5 db, as predicted by theory for the... View full abstract»

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  • Propagation in Dielectric Slab Loaded Rectangular Waveguide

    Publication Year: 1958, Page(s):215 - 222
    Cited by:  Papers (69)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (717 KB)

    Propagation in dielectric loaded rectangular waveguide is investigated theoretically for varying slab thickness and dielectric constant. The slabs are placed across the center of the waveguide in the E plane. This geometry is found to offer bandwidths in excess of double that of rectangular waveguide for dielectrics having dielectric constants of approximately 18. Power handling capacities which a... View full abstract»

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  • Parallel-Coupled Transmission-Line-Resonator Filters

    Publication Year: 1958, Page(s):223 - 231
    Cited by:  Papers (357)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (900 KB)

    This paper describes the synthesis of band-pass transmission-line filters consisting of series of half-wavelength resonant conductors such as strips. The design differs from the usual end-coupled strip configuration in that successive strips are parallel coupled along a distance of a quarter-wavelength. The resulting coupling between resonators is partly electric and partly magnetic. Several impor... View full abstract»

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  • A New Class of Broad-Band Microwave 90-Degree Phase Shifters

    Publication Year: 1958, Page(s):232 - 237
    Cited by:  Papers (221)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (507 KB)

    In the type of circuits considered here, the input power is divided equally between two channels whose outputs are caused to have a very nearly 90° phase difference over a broad frequency range. Networks suitable for application at low frequencies which perform the above function have been widely investigated. This report describes a new type of 90° differential phase shifter which has a... View full abstract»

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  • Analysis of the variable-ratio microwave power divider (Correspondence)

    Publication Year: 1958, Page(s):238 - 239
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (139 KB)

    It has been shown experimentally that a variable-ratio microwave power divider is easily assembled from two identical 3-db directional couplers and a phase changer. The scattering matrix of this structure is readily obtained from the flow graph showing the interconnections between the couplers. The following shows that the whole structure is still a directional coupler, derives the conditions to o... View full abstract»

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  • Fourier Transforms and Directional Couplers (Correspondence)

    Publication Year: 1958, Page(s): 238
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (102 KB)

    The excellent review of Bolinder on the applications of Fourier transforms in wave theory, particularly the section on "Coupling of Waves," suggested that the readers of these Transactions might also be interested in some related work performed by this writer some time ago. A report on this work contains a section on the use of Fourier integral and series methods for directional coupler design. In... View full abstract»

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  • Call for Papers - 1958 WESCON Convention (Apr. 1958 [T-MTT])

    Publication Year: 1958, Page(s): 239
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    Freely Available from IEEE
  • 1958 PGMTT National Symposium (Announcement) (Apr. 1958 [T-MTT])

    Publication Year: 1958, Page(s):240 - 241
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (179 KB)

    The 1958 PGMTT National Symposium, sponsored by the IRE Professional Group on Microwave Theory and Techniques and hosted by the IRE San Francisco Section, will be held at Cubberley Auditorium, Stanford University, Stanford, Calif. May 5-7. 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