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IEEE Transactions on Microwave Theory and Techniques

Issue 7 • Date Jul. 1977

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Displaying Results 1 - 19 of 19
  • [Front cover - Jul. 1977]

    Publication Year: 1977, Page(s):f1 - f2
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  • Comment on "Experimental and Theoretical Studies on Electromagnetic Fields Induced Inside Finite Biological Bodies" [Letters]

    Publication Year: 1977, Page(s):623 - 624
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The above paper states unequivocally: "When a probe is immersed in a finite biological body to measure the induced electric field, the output of the probe becomes Iocation dependent, especially at the edge of the body." This statement is only true for an electrically large dipole antenna with a relatively low impedance detector as a load. We have developed a set of probe design criteria for implan... View full abstract»

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  • Comment on "On the Design of Dielectric Loaded Waveguides" [Letters]

    Publication Year: 1977, Page(s):624 - 625
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    In the above paper, the authors show that, by loading a rectangular waveguide with an E-plane dielectric slab, its theoretical power-handling capacity can be significantly increased. Their conclusion may come as a surprise to experimenters designing high-power E-plane devices such as ferrite isolators or phase shifters. It is a well-known fact that such structures tend to exhibit breakdown at powe... View full abstract»

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  • Discussion of "The Resonant Frequency and Tuning Characteristics of a Narrow-Gap Reentrant Cylindrical Cavity" (Letters)

    Publication Year: 1977, Page(s): 625
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (103 KB)

    After programming the working equations given in the Appendix to this paper, and finding that I could not reproduce the numerical results given in Table I, I have corresponded directly with the author. He informs me that there are four errors in the equation given on p. 187. View full abstract»

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  • Contributors, Jul. 1977

    Publication Year: 1977, Page(s):626 - 627
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  • New from the IEEE Press, Turning Points in American Electrical History

    Publication Year: 1977, Page(s): 628
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  • A cordial invitation to apply for IEEE membership ... [advertisement]

    Publication Year: 1977, Page(s): 629
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  • [Back cover]

    Publication Year: 1977, Page(s):b1 - b2
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  • Modes and Cutoff Frequencies of Crossed Rectangular Waveguides

    Publication Year: 1977, Page(s):585 - 588
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    One complete solution is presented for determining the electromagnetic field of a generalized crossed rectangular waveguide. The method adopted is that of partial regions. Cutoff frequencies of symmetrical crossed waveguides are presented as an example. The results, even for low-order approximations, correspond well with the only experimental results available in the literature. View full abstract»

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  • Theory and Applications of Coupled Optical Waveguides Involving Anisotropic or Gyrotropic Materials

    Publication Year: 1977, Page(s):567 - 572
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    Coupled optical waveguides consisting of two isotropic dielectric slab waveguides coupled through anisotropic or gyrotropic materials inserted between them, are treated theoretically in detail. The properties of reciprocal and nonreciprocal TE-TM mode conversion and a nonreciprocal phase shift for TM modes are shown. As an example of application of this type of coupled waveguide, a nonreciprocal o... View full abstract»

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  • Linear Power Responses of an Optical Fiber

    Publication Year: 1977, Page(s):572 - 576
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    It is known that an optical fiber behaves linearly in terms of power when the modulation frequency is smaller than the spectrum width of the light source. In order to calculate the impulse or frequency power responses with a modal calculation, it is shown that the powers carried by the different modes are independent in usual cases. Different formulas are proposed for the linear responses when the... View full abstract»

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  • Resonant Frequency and Q of an Open-Ended Rectangular Cavity

    Publication Year: 1977, Page(s):589 - 593
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    A field analysis of the TE 10m resonant mode in an open-ended rectangular cavity is presented. The cavity geometry consists of rectangular waveguide with thick H-plane bifurcations for the terminations at each end. The bifurcation problem is solved by the method of modal analysis and a resonance criterion is established. Expressions for the cavity fields are written and used to compute ... View full abstract»

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  • Interdependence of Gain and Idler Conversion Loss in Parametric Amplifiers (Letters)

    Publication Year: 1977, Page(s):621 - 622
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    lnterdependence of gain and idler conversion has been experimentally investigated in parametric amplifiers having, single diode circuit configuration. The results indicate that for high gain amplifiers, the inherent idler rejection is inadequate, and larger lengths of pump waveguide, designed to be below cutoff at idler frequency, are to be used for reducing the effect of pump sideband noise on th... View full abstract»

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  • Rank Reduction of Ill-Conditioned Matrices in Waveguide Junction Problems

    Publication Year: 1977, Page(s):613 - 619
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    A new low-rank spectral expansion technique for solving the ordinarily intractable matrix equations obtained from waveguide field equivalence theorem decompositions is described. The method facilitates the analysis of waveguide discontinuity problems that resist ordinary methods of solution. The technique is illustrated for the problem of scattering at a slant interface in a rectangular waveguide. View full abstract»

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  • On Microwave-Induced Hearing Sensation

    Publication Year: 1977, Page(s):605 - 613
    Cited by:  Papers (18)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB)

    When a human subject is exposed to pulsed microwave radiation, an audible sound occurs which appears to originate from within or immediately behind the head. Laboratory studies have also indicated that evoked auditory activities may be recorded from cats, chinchillas, and guinea pigs. Using a spherical model of the head, this paper analyzes a process by which microwave energy may cause the observe... View full abstract»

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  • Numerical Solution of the Coupled-Power Equation in Step-Index Optical Fibers

    Publication Year: 1977, Page(s):577 - 585
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    By use of the finite-difference method of numerical analysis, a simple numerical solution is obtained for the coupled-power equation in optical fibers. For a specified arbitrary coupling coefficient and launching condition, the solution yields all the quantities of interest in the interior of the fiber: power distribution, attenuation, and far-field radiation pattern as functions of length. Result... View full abstract»

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  • The New Similarity Rules Applied to Argon Microwave Noise Sources

    Publication Year: 1977, Page(s):619 - 621
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    It is shown that when the noise temperatures of argon plasma noise generators, operated at fixed current/radius ratios, are plotted as 1/TN versus In (pr), the experimental data form a straight line. View full abstract»

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  • Energy Analysis for the Amplification Phenomena of Magnetostatic Surface Waves in a YIG-Semiconductor Coupled System

    Publication Year: 1977, Page(s):600 - 605
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    Amplification phenomena of magnetostatic surface wages (MSSW's) in a ferrite-semiconductor system are analyzed in detail for the first time from an energy view point. For the interactions between MSSW's containing a backward branch and carrier streams in a semiconductor, the dispersion relations are given and the energy conservation law is applied to the system. The results in terms of energy quan... View full abstract»

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  • Ferrite Planar Circuits in Microwave Integrated Circuits

    Publication Year: 1977, Page(s):593 - 600
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1896 KB)

    The ferrite planar circuit to be discussed in this paper is a general planar circuit using ferrite substrates magnetized perpendicular to the ground conductors. The main subject of this paper is the analysis of an arbitrarily shaped triplate ferrite planar circuit. In particular, the circuit parameters of the equivalent multiport are determined. To analyze ferrite planar circuits in general, two a... View full abstract»

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The IEEE Transactions on Microwave Theory and Techniques focuses on that part of engineering and theory associated with microwave/millimeter-wave components, devices, circuits, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, and industrial, activities. Microwave theory and techniques relates to electromagnetic waves usually in the frequency region between a few MHz and a THz; other spectral regions and wave types are included within the scope of the Society whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design..

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