By Topic

Transactions of the IRE Professional Group on Microwave Theory and Techniques

Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

  • Characteristic Impedance of the Shielded-Strip Transmission Line

    Publication Year: 1954, Page(s):52 - 57
    Cited by:  Papers (105)  |  Patents (2)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Theoretical Aspects of Microstrip Waveguides

    Publication Year: 1954, Page(s):100 - 102
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (209 KB)

    The Microstrip is a modification of the wire-above-ground system of transmission - the wire is replaced by a narrow strip printed on a dielectric sheet which is backed by a conductor. An exact theory for such a structure is difficult because the cross section is not homogeneous and has a geometry which does not lead to separation of variables. Furthermore it is an "open" structure where the energy... View full abstract»

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

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

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Coaxial Magic-T

    Publication Year: 1953, Page(s):17 - 23
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (546 KB)

    A coaxial hybrid junction is described whose performance is analogous to a waveguide magic-T. The design of three different types of coaxial magic-T is discussed. Standing-wave characteristics of an experimental model of each type are given. Experimental results indicate that standing-wave ratios less than 2 looking into any arm can be obtained easily over a frequency band of about 10 per cent. Ow... View full abstract»

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

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Compact Top-Wall Hybrid Junction

    Publication Year: 1953, Page(s):29 - 30
    Cited by:  Papers (8)
    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»

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

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Technique for Stabilizing Microwave Oscillators

    Publication Year: 1954, Page(s):16 - 25
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (615 KB)

    The stabilization of microwave oscillators whose short term deviations in frequency are in the order of one part in 108 is discussed in this article. The control system, which consists of a dual mode reference cavity and feedback amplifier, is applied to a reflex klystron oscillator. Circuit analysis and practical design considerations are presented. A practical method of measuring the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Microwave lnterferometer for Measuring the Time Displacement of a Projectile Within the Barrel of a Gun (Abstract)

    Publication Year: 1953, Page(s): 22
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (65 KB)

    This paper discusses the design and tests of a Microwave Interferometer, an instrument capable of measuring the time-displacement of a projectile within the barrel of a gun. A continuous record of the projectile time-displacement is obtained by using a CW-Doppler radar technique at K-band. A discussion is made of the effect of higher order modes within the gun barrel and of the effect of the leaka... View full abstract»

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

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

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Broad-Banding Circular Polarizing Transducers

    Publication Year: 1953, Page(s):24 - 29
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (393 KB)

    A problem frequently encountered in microwave and antenna work is that of obtaining elliptically polarized waves of low axial ratio over extremely broad frequency bands. In an effort to reach a more satisfactory solution to this problem than is possible with present techniques a theoretical study was conducted on several elliptically polarizing transducer configurations in circular waveguide. The ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Coaxial Line Filled with Two Non-Concentric Dielectrics

    Publication Year: 1954, Page(s):39 - 44
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    An analysis has been made of a coaxial transmission line composed of two coaxial cylindrical conductors. Two dielectrics fill different angular portions of the volume between the conductors. The propagation constants (primarily the guide wavelength) are determined by a resonant condition applied to the plane transverse to the direction of propagation. Experimental verification is given for near un... View full abstract»

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

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

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

Aims & Scope

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

Full Aims & Scope