IRE Transactions on Microwave Theory and Techniques

Issue 2 • March 1962

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  • [Front cover - March 1962]

    Publication Year: 1962, Page(s):f1 - f2
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  • Table of contents - March 1962

    Publication Year: 1962, Page(s): 97
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  • A Microwave Ferrite Single-Sideband Modulator

    Publication Year: 1962, Page(s):98 - 102
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (548 KB)

    A microwave single-sideband modulator has been designed utilizing two reflection types of Faraday rotation ferrite-balanced modulators. Power is fed to the two balanced modulators by means of a 3-db quadrature hybrid such that each modulator has equal incident power with a 90-degree phase difference. The output power of the balanced modulators is combined by means of a magic tee sum and difference... View full abstract»

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  • A Nondegenerate Traveling-Wave Parametric Amplifier

    Publication Year: 1962, Page(s):103 - 107
    Cited by:  Papers (1)
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    The traveliig-wave parametric amplifiers reported to date are not sufficiently competitive to ensure their use in advanced RADAR systems. The major hindrance is the relatively high-RADAR noise figure which is due to the fact that the signal and idler frequencies are about equal; i.e., the amplifier is degenerate. Initial experiments directed toward obtaining a nondegenerate microwave traveling-wav... View full abstract»

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  • Line Width and Bandwidth of Millimeter-Wave Resonance Isolators

    Publication Year: 1962, Page(s):108 - 113
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (445 KB)

    A theoretical derivation is made of bandwidth as a function of resonant frequency of a single crystal ferrite resonance isolator at millimeter wavelengths. The derivation takes into account the ferrite isolator as a bounded system. Using the derived relation of bandwidth and resonant frequency, and Kittel's relation between resonant frequency and applied field, equations are derived which relate l... View full abstract»

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  • Some Characteristics of Microwave Balanced Modulators

    Publication Year: 1962, Page(s):114 - 117
    Cited by:  Papers (5)
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    Microwave modulator characteristics pertinent to two state balanced modulation are discussed. An equivalence between balanced modulation and phase modulation is shown for rectangular modulation waveforms and experimental results are described. The characteristics of a tuned hybrid tee, untuned hybrid tee and novel circulator type of balanced modulator are compared. X-band measurements show that a ... View full abstract»

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  • Symmetric Strip Transmission Line Tee Junction

    Publication Year: 1962, Page(s):118 - 124
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (717 KB)

    Several different network forms have been employed previously to characterize the symmetrical strip-line tee junction and the parameters of these networks have been obtained by various means. In this paper the available theoretical and experimental results are systematically correlated. A choice, based on design convenience, is made of the most appropriate network form, and recommendations are giv... View full abstract»

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  • The Use of Exponential Transmission Lines In Microwave Components

    Publication Year: 1962, Page(s):124 - 132
    Cited by:  Papers (47)  |  Patents (3)
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    This paper describes some techniques for utilizing exponential transmission lines in microwave components in order to reduce element lengths, and hence size and weight, and to significantly increase the operating frequency range. Formulas are developed which relate line length to the frequency and rate of taper for transmission line resonators, and a nomogram is included for easy determination of ... View full abstract»

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  • Eigenvalues for a Centrally Loaded Circular Cylindrical Cavity

    Publication Year: 1962, Page(s):133 - 138
    Cited by:  Papers (10)
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    The general availability of large high-speed computers has made the use of series expansions in complicated field theory problems feasible even when these series do not converge rapidly. This paper outlines the method and illustrates its application to the solution of a problem in cylindrical coordinates. At the same time, the errors inherent in this method of solution are indicated and estimates ... View full abstract»

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  • A Graphical Method for Transforming Impedances and Reflectances Through a Lossy Twoport

    Publication Year: 1962, Page(s):139 - 141
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (232 KB)

    In this paper a simple projective geometric construction is applied to the problem of finding the input impedance of a linear lossy twoport junction for a given output port termination. The method, an extension of Bracewell's transducer diagram, is presented in both the impedance and reflectance planes. View full abstract»

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  • VHF Slow-Wave Slotted Line (Correspondence)

    Publication Year: 1962, Page(s): 142
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (264 KB)

    A slotted line is generally used for voltage-standing-wave-ratio and impedance measurements in the microwave region. Because a slotted line operable down to 25 Mc would be from 10 to 15 feet long, it is impractical for general laboratory use, and is difficult and expensive to construct with the necessary mechanical tolerances. View full abstract»

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  • Miniature Strip-Line to Waveguide Slot Adapter--Co-Linear (Correspondence)

    Publication Year: 1962, Page(s):142 - 143
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (477 KB)

    An inline adapter from miniature air dielectric strip transmission line with a ground plane spacing of 0.130 in to half height X-band waveguide has been developed by the Microwave Design Group at Hycon Manufacturing Company, Monrovia, Calif. The upper wall of the waveguide was used as the lower ground plane for the strip-line. Unity coupling was accomplished through a transverse slot in the common... View full abstract»

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  • Addendum to "Discontinuities in the Center Conductor of Symmetric Strip Transmission Line" (Correspondence)

    Publication Year: 1962, Page(s): 143
    Cited by:  Papers (37)
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    It has been pointed out to the authors that the formulas contained in their paper refer only to air-filled and not to dielectric-filled strip transmission lines. This is indeed the case and constitutes an omission which is now rectified by sketching the simple extension to the dielectric-filled case. View full abstract»

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  • A Simple Method for Measuring the Phase Shift and Attenuation through Active Microwave Networks (Correspondence)

    Publication Year: 1962, Page(s): 143
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (218 KB)

    Most methods used to measure the phase shift and attenuation through a microwave network require that the network be matched to the waveguide or the VSWR must be measured. In passive networks, these are simple and straightforward operations. However, in some active networks, principally networks which are time/temperature dependent, these operations become very tedious and time cousuming, the meth... View full abstract»

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  • Design of Interstage Coupling Apertures for Narrow-Band Tunable Coaxial Band-Pass Filters (Correspondence)

    Publication Year: 1962, Page(s):143 - 144
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (418 KB)

    The design technique to be described in this note is applicable to tunable coaxial baud-pass filters having narrow bandwidths (i.e., less than 10 percent). In the frequeucy range of 1500 Mc to about 10,000 Mc, coaxial band-pass filters usually employ coupled λ/4 resonant cavities. Unlike direct coupled waveguide band-pass filters which are often amenable to a complete paper design, these co... View full abstract»

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  • Pass-Band VSWR of Maximally Flat Band-Pass Filters (Correspondence)

    Publication Year: 1962, Page(s): 145
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (161 KB)

    Microwave band-pass filters using high-Q cavity resonators can often be designed for almost negligible midband dissipation losses (i.e., <1/2 db). If these filters are designed for a maximally flat amplitude response, the insertion loss within the pass band is approximately equal to the reflection loss within the pass band. Then R = 10 log (1 + X2n), where R = reflection loss in db X... View full abstract»

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  • An Approximate Method of Finding the Order of a Combination Bessel-Function Equation (Correspondence)

    Publication Year: 1962, Page(s):145 - 146
    Cited by:  Papers (1)
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    Assume a transverse electric wave,TE mode, propagated in a waveguide with a circular boundary. The radial boundary condition gives a combination Bessel function equation. View full abstract»

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  • A Source of Error in the Use of Slope Detection for Perturbation Measurements (Correspondence)

    Publication Year: 1962, Page(s):146 - 147
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    In a typical laboratory measurement of the field-intensity distribution in a resonant cavity, the resonant frequency of the position of a small metal or dielectric bead. The field distribution itself is then deduced directly from the frequency change. View full abstract»

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  • A New Microwave Mixer Suitable for Use with Very High Intermediate Frequencies (Correspondence)

    Publication Year: 1962, Page(s):147 - 148
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (446 KB)

    In the conventional microwave mixer it is generally necessary to provide a low-pass filter or some similar network in the intermediate-frequency output circuit. This filter usually takes the form of a capacitance or choke, which is arranged to present, as nearly as possible, a short circuit to the signal and local oscillator frequencies. For a microwave mixer with an IF of less than 100 Mc chokes ... View full abstract»

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  • A High-Power S-Band Filter (Correspondence)

    Publication Year: 1962, Page(s):148 - 149
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (411 KB)

    This note describes the measured performance of a high-power S-band "waffleiron" filter. Techniques for designing varying-impedance corrugated waveguide filters in rectangular waveguide have been available for some time [1 ]. If propagation is restricted to the dominant TE10 mode, these filters have wide well-matched pass bands and wide high-attenuation stop bands. Unfortunately, the fi... View full abstract»

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  • Contributors

    Publication Year: 1962, Page(s):149 - 150
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    Freely Available from IEEE

Aims & Scope

This Transactions ceased publication in 1962. The current retitled publication is IEEE Transactions on Microwave Theory and Techniques.

Full Aims & Scope