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IRE Transactions on Microwave Theory and Techniques

Issue 6 • Date November 1961

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Displaying Results 1 - 25 of 35
  • [Front cover - Nov. 1961 [T-MTT]]

    Publication Year: 1961, Page(s):f1 - f2
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    Freely Available from IEEE
  • Index, IRE Transactions on Microwave Theory and Techniques, Volume MTT-9, 1961

    Publication Year: 1961, Page(s):i - v
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    Freely Available from IEEE
  • Table of contents (Nov. 1961 [T-MTT])

    Publication Year: 1961, Page(s): 457
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  • Microwave Prize

    Publication Year: 1961, Page(s): 458
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  • Passive Phase-Distortionless Parametric Limiting with Varactor Diodes

    Publication Year: 1961, Page(s):459 - 472
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1920 KB)

    The theory of passive parametric limiting with a varactor diode as the nonlinear element is developed and verified experimentally. The limiting is found to be flat and phase-distortionless. Expressions are given for threshold level, dynamic range, bandwidth, and power dissipation. The transient phenomena, comprising leading- and trailing-edge leakage spikes, are studied theoretically and experimen... View full abstract»

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  • Solid-State X-Band Power Limiter

    Publication Year: 1961, Page(s):472 - 480
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    An X-band solid-state power limiter has been designed and built to protect receiver crystals from high-power microwave pulses in the kilowatt region. This passive and reliable crystal protection has been achieved by utilizing the nonlinear properties of both ferrites and semiconductor diodes. An understanding of the ferrite nonlinear mechanism, which gives rise to the characteristically large leak... View full abstract»

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  • On Spurious Outputs from High-Power Pulsed Microwave Tubes and Their Control

    Publication Year: 1961, Page(s):480 - 484
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    Excessive spurious outputs from high-power pulsed magnetrons, klystrons and traveling-wave tubes can cause intolerable interference and deleterious effects in a high-power microwave system. The harmonic output from a klystron may vary appreciably with changes in operating conditions. Harmonic outputs from tubes cannot be eliminated but their radiation can be significantly reduced by using filters.... View full abstract»

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  • Practical Design and Performance of Nearly Optimum Wide-Band Degenerate Parametric Amplifiers (Nov. 1961 [T-MTT])

    Publication Year: 1961, Page(s):484 - 490
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (877 KB)

    The design of a two-resonator single-diode degenerate parametric amplifier is described, which incorporates features that give it nearly optimum wide-band performance. These features include the use of almost lumped circuit elements, a separate pump resonator which is very lightly coupled to the diode and pump circuits, and a diode resonated in series rather than in shunt, from which several advan... View full abstract»

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  • Transmission-Phase Relations of Four-Frequency Parametric Devices

    Publication Year: 1961, Page(s):491 - 498
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    The gain, bandwidth, and excess noise temperature properties of parametric amplifiers are generally known. However, a knowledge of their transmission-phase properties is also essential for the effective application of parametric amplifiers to angular detection systems, such as monopulse radars and interferometers. These angle detection systems derive even, odd, and quadrupolar spatial components o... View full abstract»

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  • A Plasma Guide Microwave Selective Coupler (Nov. 1961 [T-MTT])

    Publication Year: 1961, Page(s):499 - 506
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    A new type of microwave coupler has been investigated in the X-band and S-band ranges. In this coupler, a gas discharge tube passes through two rectangular waveguides that are separated by some distance. A metal cylinder surrounds the discharge tube in the separation space. The coupling of microwave power via this plasma guide coupler can be varied electronically over a range greater than 30 db. P... View full abstract»

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  • High-Power Duplexers

    Publication Year: 1961, Page(s):506 - 512
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (785 KB)

    The various circuit arrangements used in duplexers are analyzed in terms of their power-handling ability in two situations: first, where the bandwidth is narrow so that insertion loss determines maximum Q, and second, where large bandwidths are required and the maximum Q is determined by available Q band-width products. In both cases the ATR duplexer has an advantage. Arc loss was measured for fol... View full abstract»

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  • Quasi-Optical Surface Waveguide and Other Components for the 100- to 300-Gc Region

    Publication Year: 1961, Page(s):512 - 518
    Cited by:  Papers (20)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (946 KB)

    Components and techniques for the generation, transmission, and detection of energy in the 100- to 300-Gc frequency region were investigated theoretically and experimentally. The design and construction of fundamental components, such as harmonic generators and detectors, were necessary since many items are not available commercially. A detailed theoretical analysis was performed for the propagati... View full abstract»

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  • Broad-Band Isolators and Variable Attenuators for Millimeter Wavelengths

    Publication Year: 1961, Page(s):519 - 523
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (650 KB)

    A longitudinally magnetized rod of ferrite has been used as a dielectric waveguide which provides Faraday rotation independent of frequency in the band from 50 to 60 kMc. This rotator has been incorporated into broad-band isolators with forward losses of 1 db and reverse losses greater than 30 db with return losses of approximately 20 db over the band. It has also been used in a variable attenuato... View full abstract»

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  • A New High-Precision Method for the Measurement of the VSWR of Coaxial Connectors

    Publication Year: 1961, Page(s):524 - 528
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (507 KB)

    A substitution method of measuring the very small reflections due to a pair of precision coaxial connectors has been developed. The connectors under test are mounted on a section of precision air line which serves as the impedance reference standard. The electrical length of this line, including connectors, is a multiple of one-half wavelength at the frequency of measurement. A slotted line and a ... View full abstract»

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  • Hybrid-Ring Directional Coupler for Arbitrary Power Divisions

    Publication Year: 1961, Page(s):529 - 535
    Cited by:  Papers (58)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (447 KB)

    A directional coupler in the form of a hybrid ring is described in this paper. A theoretical analysis using the scattering matrix has been carried out and experimental verification of the theoretical result has been achieved in a stripline network. Simple design equations which enable one to design a directional coupler with any degree of coupling have been derived. This coupler differs from the c... View full abstract»

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  • A coupled strip-line configuration using printed-circuit construction that allows very close coupling

    Publication Year: 1961, Page(s):535 - 544
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1532 KB)

    A new strip-line configuration is presented, applicable to printed-circuit construction, that allows very close coupling to be achieved without resorting to very small coupling gaps and excessively critical dimensions. Graphs of even- and odd-mode fringing capacitances are given. These graphs can be used with simple formulas, which also are given, to determine the dimensions of the configuration t... View full abstract»

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  • The Measurement of Conductivity and Permittivity of Semiconductor Spheres by an Extension of the Cavity Perturbation Method

    Publication Year: 1961, Page(s):545 - 551
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (870 KB)

    A technique based on cavity perturbation theory is described with which one can determine the microwave conductivity and dielectric permittivity of a small sphere of completely arbitrary conductivity. These properties follow from the measured frequency shift and quality change occurring when the sample is inserted into a region of maximum electric field in a cavity resonator. The range of validity... View full abstract»

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  • The Dominant Cutoff Wavelength of a Lunar Line

    Publication Year: 1961, Page(s):552 - 556
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (489 KB)

    A method is presented for calculating the lowest cutoff wavelength of a new microwave transmission line, the "lunar line," which is formed by two eccentric circular metal tubes connected with a metal bar or tangential to each other. The lunar-shaped cross section is approximated by introducing a series of steps in the outer guide wall and by dividing the cross section into m fan-shape regions. Thu... View full abstract»

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  • The Negative-Conductance Slot Amplifier

    Publication Year: 1961, Page(s):557 - 566
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1018 KB)

    It has been suggested that the incorporation of active solid-state devices into the elements of an antenna may lead to the simplification of the over-all microwave system and at the same time to a reduction in size, power and weight requirements. This paper will discuss several approaches to a study of the microwave properties of a slotted antenna element shunted by a tunnel diode biased into its ... View full abstract»

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  • Measurement of the Conversion Conductance of Esaki Mixer Diodes (Correspondence)

    Publication Year: 1961, Page(s):567 - 568
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (299 KB)

    In order to compare the theoretically predicted and the experimentally observed behavior of frequency converters using Esaki diodes, it is necessary to evaluate various mixer parameters, in particular, the conductance elements of the conversion matrix. It is well known, these conductance elements are certain Fourier coefficients of the periodic series representing the incremental time-varying diod... View full abstract»

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  • A Versatile Phase Measurement Method for Transmission-Line Networks (Correspondence)

    Publication Year: 1961, Page(s):568 - 569
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (254 KB)

    Current phase-measurement methods for transmission-line circuits fall into two general categories. The first is the comparison method, where the path under measurement is compared with another calibrated, variable one. The phase shift through the variable path is adjusted to equal that of the unknown path, and this condition is shown by a null detector. Null indication by both phase and amplitude ... View full abstract»

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  • A VHF High-Power Y-Circulator (Correspondence)

    Publication Year: 1961, Page(s):569 - 570
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (249 KB)

    A number of articles on the theory, design and application of three-port circulators may be found in the literature. Specific devices of this kind are commercially available for low signal power levels. In this letter a high-power version of a three-port or V-circulator k presented. The charcteristics measured at high power are compared with measurements performed at low power. View full abstract»

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  • N-Terminal Power Divider (Correspondence)

    Publication Year: 1961, Page(s): 571
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (86 KB)

    Recently Wilkinson has described an N-way hybrid power divider which decouples the outputs. View full abstract»

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  • 10-DB XL Cross Guide Coupler (Correspondence)

    Publication Year: 1961, Page(s): 571
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (86 KB)

    Two interesting points were noted while working with half-height cross guide couplers. The first was that if the same size coupling holes were used as in the full size waveguide, coupling was increased approximately 3 db. The second, and more important, was that the value of coupling was much more constant over a given frequency band, with essentially no change in directivity. View full abstract»

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  • Design Note on an L-Band Strip-Line Circulator (Correspondence)

    Publication Year: 1961, Page(s):571 - 572
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    The technique of using magnetized yttrium-iron-garnet slabs in dielectrically-loaded strip transmission Iine as the reciprocal elements in a UHF and low-microwave frequency, 4-port circulator has been demonstrated most effectively by Arams, et al. This communication reports the results of an independent and concurrent development program at our laboratory which led to a similar L-band circulator u... 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