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Microwave Theory and Techniques, IRE Transactions on

Issue 1 • Date January 1961

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  • [Front cover - Jan. 1961 [T-MTT]]

    Publication Year: 1961 , Page(s): f1 - f2
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    Freely Available from IEEE
  • Table of contents (Jan. 1961 [T-MTT])

    Publication Year: 1961 , Page(s): 1
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    Freely Available from IEEE
  • Microwave Prize

    Publication Year: 1961 , Page(s): 2
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    Freely Available from IEEE
  • UHF Strip Transmission Line Hybrid Junction

    Publication Year: 1961 , Page(s): 3 - 6
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (499 KB)  

    A hybrid junction has been developed using a symmetrical strip transmission line for application in the UHF range. It has a frequency band of +- 20 per cent where the input voltage standing-wave ratios at all ports are less than 1.26 (2 db), the power divisions are within 0.1 db, and the difference in power between the series input and parallel input ports is less than 0.3 db. The isolation is gre... View full abstract»

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  • Gallium-Arsenide Point-Contact Diodes

    Publication Year: 1961 , Page(s): 6 - 10
    Cited by:  Papers (29)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (511 KB)  

    This paper describes some of the work on gallium-arsenide point-contact diodes which is currently in progress at the Bell Telephone Laboratories, Holmdel, N. J. Gallium arsenide, one of the Group III-V intermetallic compounds, possesses properties which tend to make it superior to either silicon or germanium for many high-frequency diode applications. By controlling the resistivity of the gallium ... View full abstract»

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  • Characterization of Microwave Variable Capacitance Diodes

    Publication Year: 1961 , Page(s): 11 - 22
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1153 KB)  

    This paper will describe the electrical characterization of microwave variable capacitance diodes. The importance of some of the diode parameters is discussed from the application point of view, and suitable measurement techniques for these parameters are described, together with actual measurement data on some diodes. First, a general four-terminal transformation method is used, and some approxim... View full abstract»

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  • Scattering of a Plane Wave on a Ferrite Cylinder and Normal Incidence (Correction)

    Publication Year: 1961 , Page(s): 22
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (104 KB)  

    W. H. Eggiman, author of "Scattering of a Plane Wave on a Ferrite Cylinder and Normal Incidence," which appeared on pp. 441-445 of the July, 1960, issue of these Transactions, has brought the following to the attention of the Editor. View full abstract»

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  • A Study of the Optimum Design of Wide-Band Parametric Amplifiers and Up-Converters

    Publication Year: 1961 , Page(s): 23 - 38
    Cited by:  Papers (45)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1604 KB)  

    Single-diode parametric amplifiers or up-converters using multiple-resonator filters as coupling networks can be made to have considerably larger bandwidths than corresponding amplifiers having single-resonator coupling circuits. Data are presented from which the coupling-filter bandwidths required for given coupling network complexity, diode parameters, and required gain can be determined for bot... View full abstract»

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  • Impedances of an Elliptic Waveguide (For the eH1 Mode) (Correction)

    Publication Year: 1961 , Page(s): 38
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (102 KB)  

    G. R. Valenzuela, author of "Impedances of an Elliptic Waveguide (For the eH1 Mode)," which appeared on pp. 431-435 of the July, 1960, issue of these Transactions, has brought the following to the attention of the Editor. View full abstract»

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  • A Low-Noise X-Band Parametric Amplifier Using a Silicon Mesa Diode

    Publication Year: 1961 , Page(s): 39 - 43
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (792 KB)  

    This paper summarizes a cooperative effort to develop silicon mesa variable-capacitance diodes and to evaluate their potential for achieving low-noise amplification in the high microwave frequency range. Cutoff frequencies of about 70 kMc at zero-bias voltage (corresponding to 140 kMc at maximum reverse bias voltage) with a total permissible voltage swing in excess of 5 volts have been obtained. A... View full abstract»

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  • Design and Operation of Four-Frequency Parametric Up-Converters

    Publication Year: 1961 , Page(s): 44 - 52
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1278 KB)  

    A theoretical analysis of a four-frequency parametric-diode up-converter is presented, retaining both sum and difference frequencies generated by mixing of pump and signal. Upper and lower sideband up-converters are compared, and it is shown that the gain limitations of the former can be overcome by combination with the latter, without appreciable loss of stability. Three different parametric ampl... View full abstract»

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  • Ferrites with Planar Anisotropy at Microwave Frequencies

    Publication Year: 1961 , Page(s): 52 - 62
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (965 KB)  

    Materials with an easy plane of magnetization (planar anisotropy) have recently been discovered. The large anisotropy field that tends to keep the magnetization in the easy plane reduces the field required to cause ferromagnetic resonance, which makes the material promising for microwave applications. Equations are derived for the susceptibility, taking into account losses and a finite medium. Pro... View full abstract»

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  • Wide-Band Resonance Isolator

    Publication Year: 1961 , Page(s): 63 - 67
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (431 KB)  

    A parallel-plate transmission line loaded with capacitors or high dielectric constant material along a narrow strip has a circularly polarized RF magnetic field everywhere external to the loading over a very broad band. The magnetic resonance line of a narrow linewidth ferrite was inhomogeneously broadened by a very inhomogeneous magnetic field to provide resonance absorption over a wide frequency... View full abstract»

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  • Maser Operation at Signal Frequencies Higher than Pump Frequency

    Publication Year: 1961 , Page(s): 68 - 72
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (517 KB)  

    Methods using harmonic spin coupling for operating solid-state masers with signal frequencies higher than the pump frequency are discussed. Expressions for the population inversion ratios are presented, and the maximum signal-to-pump-frequency ratios are calculated. Experimental data is presented on a ruby maser which is operated using the symmetrical method. Amplification was obtained at signal f... View full abstract»

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  • A Solid-State Microwave Source from Reactance-Diode Harmonic Generators

    Publication Year: 1961 , Page(s): 73 - 78
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (895 KB)  

    The generation of harmonics with reasonable efficiencies has been made possible by the application of high Q nonlinear reactance diodes. An approximate solution for the conversion loss of harmonic generators utilizing these devices has been obtained and design curves relating conversion loss with harmonic number, diode Q, and voltage-capacitance coefficient are presented. Harmonic generators have ... View full abstract»

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  • Propagation of Waves in a Plasma in a Magnetic Field

    Publication Year: 1961 , Page(s): 79 - 82
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (301 KB)  

    The propagation of electromagnetic waves in a plasma in a magnetic field as given by the Appleton-Hartree theory is discussed in terms of the wave normal surfaces instead of the more conventional propagation vector plots, and the "ordinary" and "extraordinary" waves are defined in terms of their polarizations instead of using a continuity argument. This gives a different picture of "a wave" which ... View full abstract»

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  • Magnetoplasma Effects in Solids

    Publication Year: 1961 , Page(s): 83 - 89
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (737 KB)  

    Plasmas in solids show a more complex behavior than in gases since they reflect the symmetry properties of crystals. Since the carrier concentration has a wide range in semiconductors and metals, the plasma phenomena can be studied from microwaves to the ultraviolet. The effect of magnetic fields on the electromagnetic properties of plasmas has been experimentally investigated at microwave and inf... View full abstract»

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  • Coherent Excitation of Plasma Oscillations in Solids

    Publication Year: 1961 , Page(s): 89 - 92
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    Considerations are put forth concerning the feasibility of observing the coherent excitation of plasma oscillations in a two-component plasma of electrons and holes in semiconductors or semimetals. By coherent excitation k meant the onset of a high-frequency ("two-stream") instability arising from an appreciable drift of electrons vs holes under the action of an applied electric field. Conditions ... View full abstract»

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  • Pulsed Millimeter-Wave Generation Using Ferrites

    Publication Year: 1961 , Page(s): 92 - 94
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (476 KB)  

    A method is described for generating pulsed RF energy in the millimeter-wave spectrum. Low-loss garnets are used in the uniform precessional mode to store energy at S band and radiate at a higher frequency, which is controlled by the total magnetic field. Details are given of a K-band generator which operates at frequencies up to 32 kMc. View full abstract»

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  • Tuning Range of the Backward Traveling-Wave Parametric Amplifier (Correspondence)

    Publication Year: 1961 , Page(s): 95
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (118 KB)  

    Experimental results obtained with backward traveling-wave parametric amplifiers indicate that their tuning range is greater than that predicted when TEM propagation is assumed. An analytical and graphical examination of the possible tuning range when non-TEM transmission lines are considered is given below. This examination shows how the tuning range may be optimized, and indicates what the maxim... View full abstract»

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  • Size Effect in the Measurement of Microwave Permeability of Ferrites (Correspondence)

    Publication Year: 1961 , Page(s): 96
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (129 KB)  

    In the usual method of measuring the tensor permeability of ferrites at microwave frequencies, a small sample of the material is placed in a suitable cavity, and the change in resonant frequency and Q of the cavity, caused by the presence of the ferrite, are measured. The measured quantities are related to the quantities of interest-real and imaginary parts of permeability-by equations derived thr... View full abstract»

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  • Cutoff Variable Reactor (Correspondence)

    Publication Year: 1961 , Page(s): 96 - 97
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    When relatively high positive reactance is required for coaxial line circuits, the cutoff variable reactor can economize space. In Fig. 1, a schematic diagram of the cutoff variable reactor is shown. For z<0, there is the coaxial line; and for z>0, there is the cylindrical waveguide operated in cutoff region with the variable shorting plunger shorting the waveguide at the distance s. For sim... View full abstract»

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  • Single-Mode Cavity Maser at 2200 Mc (Correspondence)

    Publication Year: 1961 , Page(s): 97 - 98
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (238 KB)  

    Cavity masers which have been reported in the literature have utilized a dual-mode cavity resonant at the pump and signal fre-quencies, but Strandberg, et al., has reported an X-band cavity maser which can be operated with the cavity resonant only at the signal frequency. Siegmann has also reported a multiplicity of resonances in his cavity maser for the pump signal which might possibly be caused ... View full abstract»

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  • Higher-Order Evaluation of Dipole Moments of a Small Circular Disk for Arbitrary Incident Fields (Correspondence)

    Publication Year: 1961 , Page(s): 98
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (119 KB)  

    In a recent note the induced electric and magnetic dipole moments P and M due to the diffraction of a plane wave on a small circular disk were given. The expression for the electric dipole moment holds, however, only if the electric field vector is parallel to the plane of incidence. View full abstract»

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  • Capacitance Definitions for Parametric Operation (Correspondence)

    Publication Year: 1961 , Page(s): 98 - 99
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (249 KB)  

    The purpose of this note is to reconcile the various definitions of nonlinear or equivalent time-varying capacitance which appear in the literature concerned with parametric devices. The problem considered is one of a nonlinear reactive element, let us say a capacitance, which is pumped by strong pump source at frequency fp and which couples two circuit modes at frequencies f... 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