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Transactions of the IRE Professional Group on Microwave Theory and Techniques

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  • Characteristic Impedance of the Shielded-Strip Transmission Line

    Publication Year: 1954, Page(s):52 - 57
    Cited by:  Papers (105)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (454 KB)

    Simple formulas are given for the characteristic impedance of a transmission line consisting of a conducting strip of rectangular cross section centered between parallel conducting plates at ground potential. The formulas agree to within 1.2 per cent with an exact formula for a zero thickness strip. In the case of finite thickness up to a quarter of the plate spacing, the formulas are expected to ... View full abstract»

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  • 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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  • Some Coupled-Wave Theory and Application to Waveguides (Abstract)

    Publication Year: 1953, Page(s): 14
    Cited by:  Papers (114)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (98 KB)

    Coupled transmission lines have been employed as transducers for selectively coupling between a single-mode waveguide and one mode of a multi-mode waveguide. Theoretical relations describing the characteristics of such devices and some results of experiments are to be presented. View full abstract»

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  • Microwave Radio Relay Link for Military Use

    Publication Year: 1954, Page(s):84 - 88
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (606 KB)

    Radio set AN/TRC-29 is the nomenclature for a frequency-modulated microwave radio link equipment designed for military use. It transmits in the band from 1700 to 2400 megacycles and will accept input signals between 30 cycles and 4.5 megacycles. In most cases, It will probably be used in conjunction with Multiplexer Set AN/TCC-13. This latter unit, which will also be described, is a pulse-position... View full abstract»

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  • Graphical Filter Analysis

    Publication Year: 1955, Page(s):15 - 21
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (987 KB)

    Some well known principles of filters and transmission lines are recalled and used to develop graphical methods of analyzing Iossless transmission line filters consisting of a series of symmetrical and identical sections. The results of this development are used to construct a special filter analysis chart by means of which a filter may be completely analyzed from a Smith Chart plot of the input i... View full abstract»

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  • A Method of Measuring Dissipative Four-Poles Based on a Modified Wheeler Network

    Publication Year: 1955, Page(s):30 - 36
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (702 KB)

    A method of abstracting the parameters of dissipative four-poles from measured data is presented here. This semi-precision method is applicable to symmetric four-poles and results directly in a conveniently symmetric network representation. It is based on the modified Wheeler representation, a new and completely general network, which is introduced in this paper. In addition to the derivation of t... View full abstract»

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  • A Turnstile Polarizer for Rain Cancellation

    Publication Year: 1955, Page(s):10 - 15
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2315 KB)

    This paper describes a rain canceller using a turnstile junction to provide the necessary polarization of the fields. It discusses the system from the point of view of adapting an existing radar feed system to one that will permit the reduction of rain return. The turnstile junction is described, and it is shown to have properties that meet the requirements for obtaining circular or elliptical pol... View full abstract»

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  • Intrinsic Insertion Loss of a Mismatched Microwave Network

    Publication Year: 1955, Page(s):40 - 45
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (605 KB)

    A brief review is presented of the absolute minimum loss of a two-port, mismatched lossy microwave network. This minimum loss, called the "intrinsic insertion loss" can be attained by adding suitable susceptances at the ports that will yield simultaneous bilateral network match. A measurement procedure is described and convenient graphs are presented. View full abstract»

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  • Compact Top-Wall Hybrid Junction

    Publication Year: 1953, Page(s):29 - 30
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (165 KB)

    Very often in working with a waveguide transmission systems, it is necessary or desirable to couple off from the system a specified amount of the energy for various purposes. A common and practical method of accomplishing this is through the use of directional couplers and waveguide hybrid junctions. The hybrid junction, as used in this discussion, refers to a specialized waveguide directional cou... View full abstract»

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  • Ho1 Mode Circular Waveguide Components

    Publication Year: 1954, Page(s):45 - 51
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (523 KB)

    A convenient method of launching the Ho1 mode in round waveguide is described. Four resonant slots are employed in a compact end-feed transition design. Construction details and performance curves are given. Also described is a developmental bend which avoids the Ho1-E11 mode degeneracy problem by employing a superimposed pair of "E" and "H" plane rectangular waveg... 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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  • X-Band Rotary Joint

    Publication Year: 1953, Page(s):23 - 24
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (143 KB)

    In view of the important part played by rotary joints in many radar systems, it is surprising that little or nothing has been published on this subject since the appearance of the discussion by Niemann, Ehlers and Worrell, in which they give the war time status of this component. In spite of the excellent work already done on this project, however, there remained a need for a high power rotary joi... View full abstract»

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  • A Practical Method of Locating Waveguide Discontinuities (Correspondence)

    Publication Year: 1955, Page(s):45 - 46
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    In the maintenance of ultra-high frequency equipments utilizing waveguide, one of the more difficult troubles to diagnose and correct is that of the high standing wave ratio. The question always arises as to whether the antenna or the waveguide is at fault. Sometimes a visual inspection of the transmission system will disclose the difficulty. Too often, however, the physical layout of the system m... View full abstract»

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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