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Microwave Theory and Techniques, IEEE Transactions on

Issue 9 • Date Sept 1986

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Displaying Results 1 - 16 of 16
  • [Front cover - Sep. 1986]

    Publication Year: 1986 , Page(s): f1 - f2
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  • Temperature-Variable Characteristics and Noise in Metal - Semiconductor Junctions

    Publication Year: 1986 , Page(s): 913 - 922
    Cited by:  Papers (14)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (934 KB)  

    Although metal-semiconductor junctions were first explored a hundred years ago, some important aspects of the transport mechanism of electrons across the metal-semiconductor barrier have not yet been fully explained. In this paper, we report on a new model and supporting experimental results which explain deviations observed from the ideal exponential current-voltage characteristic. The model and ... View full abstract»

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  • Patent Abstracts (Sep. 1986 [T-MTT])

    Publication Year: 1986 , Page(s): 986 - 989
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    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1986 , Page(s): 990
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  • Getting The Picture [advertisement]

    Publication Year: 1986 , Page(s): 991
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  • [Back cover - Sep. 1986 [T-MTT]]

    Publication Year: 1986 , Page(s): b1 - b2
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  • Modeling of a Coaxial-Waveguide Power-Combining Structure

    Publication Year: 1986 , Page(s): 937 - 942
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (568 KB)  

    The modeling of the Kurokawa-Magalhaes power-combiner mounting structure is presented. The combiner is regarded as a four-port network with the ports created at the coaxial-waveguide apertures. By using a radial-modal wave approach, the admittance matrix for this network is determined. The theory is verified through an alternative approach based on the equivalence between a coaxial-waveguide junct... View full abstract»

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  • Transient Analysis of Single and Coupled Lines with Capacitively-Loaded Junctions

    Publication Year: 1986 , Page(s): 952 - 964
    Cited by:  Papers (21)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (984 KB)  

    Transient processes are studied for a single line or a pair of coupled lines consisting of line sections with different characteristic admittances and with capacitances loaded at the junctions of line sections. Equations for the Laplace transform of the reflection and transmission coefficients of single and coupled lines are derived for the general case. When the capacitances are loaded at regular... View full abstract»

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  • Mode Analytical Study of Cylindrical Cavity Power Combiners

    Publication Year: 1986 , Page(s): 943 - 951
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (784 KB)  

    A mode analytical treatment of cylindrical cavity power combiners is presented to discuss power-combining capability and the method for attaining stable desired mode operation. Both the conventional coaxial-probe output type and the window output type are treated, based on a circuit model which can support TM010, TM020, and TMm10 modes (1<=m<=N, N being the n... View full abstract»

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  • Field Theory Design of Rectangular Waveguide Broad-Wall Metal-Insert Slot Couplers for Millimeter-Wave Applications (Correction)

    Publication Year: 1986 , Page(s): 985
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (35 KB)  

    In the above paper, the designation of the columns "Slot Lengths (mm)" of Tables I-IV should have read "Half Slot Lengths (mm)," as is indicated correctly in Fig. 1 of the paper, by z = l1, z = 2l1, respectively, for the first slot. S1, S2,· · ·, in the figure of Table I, therefore, should have read 2S1, 2S2,· &#... View full abstract»

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  • Traveling-Wave IMPATT Amplifiers and Oscillators

    Publication Year: 1986 , Page(s): 965 - 971
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (728 KB)  

    Traveling-wave IMPATT oscillators and amplifiers are analyzed using a Iarge-signal transmission-line model. A specific case for a GaAs structure at 33.7 GHz is examined in detail. General equations relating to the design and expected power output from these devices are also developed. It is concluded that more RF power can he generated by traveling-wave structures than is obtainable from discrete ... View full abstract»

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  • A New Method for Measuring Dielectric Constant Using the Resonant Frequency of a Patch Antenna

    Publication Year: 1986 , Page(s): 923 - 931
    Cited by:  Papers (13)  |  Patents (11)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (648 KB)  

    An analytical expression is given for the resonant frequency of a rectangular patch antenna. It shows explicitly the dependence of the resonant frequency on the characteristic parameters of a patch antenna. Based on this result, a new method is developed for the measurement of the dielectric constant of a thin slab substrate. Basically, the test equipment consists of a rectangular microstrip anten... View full abstract»

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  • A Direct-Coupled Lambda/4-Coaxial Resonator Bandpass Filter for Land Mobile Communications

    Publication Year: 1986 , Page(s): 972 - 976
    Cited by:  Papers (10)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (528 KB)  

    A bandpass filter operating at 870 MHz was constructed using lambda/4-coaxial resonators. The resonators were made of metallized high- Q dielectric ceramic (Q>=10 000, epsilonr = 37), and were directly coupled to each other through apertures which were formed on the outer side surface of the resonators. In order to couple the input and output resonators to the external circuit, a rec... View full abstract»

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  • Complex Dielectric Constants for Selected Near-Millimeter-Wave Materials at 245 GHz

    Publication Year: 1986 , Page(s): 932 - 936
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (608 KB)  

    A double-beam instrument developed in this laboratory has been used to measure the complex dielectric constant of selected materials at 245 GHz. We report here the results for crystalline quartz, fused silica (Spectrosil WF and Dynasil 4000), beryllia (iso-pressed),boron nitride (hot-pressed), and a nickel ferrite (Trans-Tech 2-111). Results are compared with the data obtained by other researchers... View full abstract»

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  • Characteristic Impedance of Integrated Circuit Bond Wires (Short Paper)

    Publication Year: 1986 , Page(s): 982 - 984
    Cited by:  Papers (29)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (264 KB)  

    In microwave circuit analysis, bond wires are frequently modeled as lumped elements or sections of microstrip. These models are insufficient since part of the wire is suspended above the substrate. This paper shows numerical results that provide the line impedance and effective dielectric constant for a round wire above a grounded dielectric substrate. View full abstract»

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  • The Effect of Fringing Fields on the Resistance of a Conducting Film

    Publication Year: 1986 , Page(s): 977 - 981
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (536 KB)  

    We have calculated the effect of fringing fields on the measured resistance of a conducting film between two circular disks, using two complementary approaches, for a wide range of disk separations. The problem is cast as the numerical solution of a dual integral equation and a straightforward relaxation procedure for the isomorphic problem of the fringing effects on the capacitance of a circular ... View full abstract»

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Aims & Scope

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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