Transactions of the IRE Professional Group on Microwave Theory and Techniques

Issue 3 • September 1954

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Displaying Results 1 - 13 of 13
  • [Front cover and table of contents - Sep. 1954]

    Publication Year: 1954, Page(s):f1 - f2
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    Freely Available from IEEE
  • Optical Methods for the Measurement of Complex Dielectric and Magnetic Constants at Centimeter and Millimeter Wavelengths

    Publication Year: 1954, Page(s):1 - 12
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1183 KB)

    A method is described which permits the determination of the complex dielectric constant, epsilon* = epsilonoke(l-j tan deltae), and the complex permeability, µ* = µokm (l-j tan deltam), using free space transmission and reflection from a plane sheet of the sample dielectric. The procedure represents an extension of that u... View full abstract»

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  • Millimeter Wave Spectroscopic Components

    Publication Year: 1954, Page(s):13 - 16
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The very rapid development of the field of microwave electronics from the late 1930's to the present has opened up the region of the electromagnetic spectrum lying between the "radio" region and the infrared region. It is not generally realized, however, that these recent developments were by no means the earliest work in the field of centimeter and millimeter waves --- for example, Heinrich Hertz... View full abstract»

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  • Harmonics at Millimeter Wavelengths

    Publication Year: 1954, Page(s):17 - 20
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (342 KB)

    Two techniques for obtaining millimeter waves with sufficient power to make physical measurements have been investigated at the Columbia Radiation Laboratory. The first in point of time was to use the harmonics of the fundamental frequency directly emitted by a magnetron when it is in oscillation. Harmonics up to wavelengths of 1.25 mm have been observed. The only advantage of the magnetron is in ... View full abstract»

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  • Millimeter Wave Generation by Cerenkov Radiation

    Publication Year: 1954, Page(s):21 - 22
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (203 KB)

    As a part of the Columbia University Radiation Laboratory program for the generation of millimeter waves the Cerenkov effect is being used to produce microwave radiation. The frequency range of interest in this project is in the submillimeter region in as much as the longer wavelengths can be generated by conventional methods. I shall first describe briefly the properties of Cerenkov radiation and... View full abstract»

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  • Stabilization of Reflex Klystrons by High-Q External Cavities

    Publication Year: 1954, Page(s):23 - 26
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (261 KB)

    The frequency stability of the local oscillator is often the most important factor in determining the IF bandwidth of superheterodyne receivers. The inherent frequency stability of the local oscillator, which in the case of millimeter reflex klystrons is quite poor, can be improved by electronic means with the use of some forms of microwave discriminator. An alternate method is to increase the eff... View full abstract»

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  • Superheterodyne Receiver for the 100 to 150 kMc Region

    Publication Year: 1954, Page(s):27 - 32
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (538 KB)

    In our work in the region from 100 to 300 kMc we are continually searching for more sensitive receiving systems and have recently been investigating superheterodyne detection in this region. View full abstract»

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  • Magnetron Research at Columbia Radiation Laboratory

    Publication Year: 1954, Page(s):33 - 37
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    Current magnetron research and development at Columbia Radiation Laboratory is principally directed towards the production of the shortest wavelengths in the millimeter region; the development of high power in the millimeter region; the development of wide range tunable tubes; and the investigation of low field magnetron operation. View full abstract»

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  • Low Loss Dielectric Waveguides

    Publication Year: 1954, Page(s):38 - 47
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    The history of dielectric waveguides begins back in 1910 with the publication of a theoretical paper by Hondros and Debye, who gave a mathematical treatment of transverse magnetic mode propagation in lossless dielectric guide. In the 1930's Southworth began experimental work on these modes while Carson, Mead, and Schelkunoff developed a general theory which showed the existence of TE, TM, and hybr... View full abstract»

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  • A Calorimeter for Power Measurements at Millimeter Wavelengths

    Publication Year: 1954, Page(s):45 - 47
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (383 KB)

    A calorimeter for measuring low-level power at millimeter wavelengths is described. This is a broadband device capable of measuring power levels of the order of one milliwatt with an estimated accuracy of plus or minus 1/4 db. The calorimeter utilizes the substitution principle by matching the temperature rises of two identical power absorbers, in one of which is dissipated the unknown high freque... View full abstract»

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  • An Experimental Broad-Band Helix Traveling-Wave Amplifier for Millimeter Wavelengths

    Publication Year: 1954, Page(s):48 - 53
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (745 KB)

    This paper considers a number of problems which have been encountered and solved in the design and construction of an experimental millimeter-wave amplifier using a microscopic helix only 0.015" in diameter. Amplifications of as much as 19 db have been obtained at a wavelength of 6 millimeters, and amplifications of 9 db have been measured at wavelengths as short as 5.2 millimeters. View full abstract»

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  • The Use of Flat Waveguide in the Millimeter Range

    Publication Year: 1954, Page(s): 54
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (51 KB)

    The use of flat waveguide in the millimeter range has the advantage of increased power handling ability and lower attenuation as compared to the ordinary single mode guide. These advantages are gained at the expense of possible multi-mode propagation. Various flat guide components are described which are designed to operate over a 4:1 frequency band with minimum higher mode excitation. In addition... View full abstract»

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  • [Back cover - Sep. 1954 (T-MTT)]

    Publication Year: 1954, Page(s):b1 - b2
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Aims & Scope

This Transactions ceased publication in 1955. The current retitled publication is IEEE Transactions on Microwave Theory and Techniques.

Full Aims & Scope