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IEEE Transactions on Microwave Theory and Techniques

Issue 1 • Date Jan 1987

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Displaying Results 1 - 22 of 22
  • [Front cover - Jan. 1987 [T-MTT]]

    Publication Year: 1987, Page(s):f1 - f2
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  • Patent abstracts

    Publication Year: 1987, Page(s):78 - 82
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    These patent abstracts of recently issued patents of interest to microwave engineers are intended to provide the minimum information necessary for readers to detennine if they are interested in examining the patent in more detail. Complete copies of patents are available for a small fee by writing: U.S. Patent and Trademark Office, Box 9, Washington, DC, USA. View full abstract»

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  • Call for papers - focused section on anthropomorphism in mechatronic systems

    Publication Year: 1987, Page(s): 83
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  • [Advertisement]

    Publication Year: 1987, Page(s): 84
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  • IEEE copyright form

    Publication Year: 1987, Page(s):87 - 88
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  • [Back cover - Jan.1987 [T-MTT]]

    Publication Year: 1987, Page(s):b1 - b2
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  • On the Relationship Between TLM and Finite-Difference Methods for Maxwell's Equations (Short Paper)

    Publication Year: 1987, Page(s):60 - 61
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    It is shown that if the expanded node three-dimensional TLM method is operated in a certain way, then it can be numerically equivalent to a finite-difference method. Some comments are made on comparisons between the two approaches. View full abstract»

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  • Polynomial Approximations for the Transverse Magnetic Polarizabilities of Some Small Apertures

    Publication Year: 1987, Page(s):20 - 23
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    Polynomial approximations are given for the magnetic polarizabilities of some small apertures of various shapes, as functions of the aperture width to length ratios, for the case where the applied magnetic field is across the narrower dimension of the aperture. The shapes considered are the rectangle, diamond, rounded end slot, and ellipse, of which only the last has an exact solution. View full abstract»

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  • On the Numerical Inversion of the Schwarz-Christoffel Conformal Transformation

    Publication Year: 1987, Page(s):35 - 40
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    Considering the numerical optimization approach for the inversion of the Schwarz-Christoffel conformal transformation formula, some improvements in integration procedures and some topics in optimization methods are discussed. Predictor-corrector techniques are introduced in order to map internal lines after the polygonal boundary is transformed these are applied to the dielectric interface in inho... View full abstract»

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  • A Multifilament Method-of-Moments Solution for the Input Impedance of a Probe-Excited Semi-Infinite Waveguide

    Publication Year: 1987, Page(s):14 - 19
    Cited by:  Papers (42)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    The input impedance and surface currents of a probe-excited, short-circuited semi-infinite waveguide are determined by the method of moments. Expressions are given for the impressed electric field used to excite the probe from the coaxial source input using a semi-infinite-waveguide Green's function, and expressions are given for a free-space approximate impressed electric field which arises from ... View full abstract»

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  • Design Curves for -3-dB Branchline Couplers (Corrections)

    Publication Year: 1987, Page(s): 77
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (21 KB)

    In the above paper, the following corrections should be made. View full abstract»

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  • Pulse Dispersion and Shaping in Microstrip Lines

    Publication Year: 1987, Page(s):41 - 46
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (880 KB)

    A method for determining the modal dispersion of gigahertz-bandwidth pulses on microstrip transmission lines is described. We have investigated the evolution of temporal waveforms propagating on microstrips, with very good agreement noted between experimental pulse shapes and numerical simulations. The resulting pulse distortion contributed to a pulse-shaping application where 100-ps rise times we... View full abstract»

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  • Uniaxial and Biaxial Substrate Effects On Finline Characteristics

    Publication Year: 1987, Page(s):24 - 29
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The effect of uniaxial and biaxial substrates on the frequency-dependent properties of a bilateral finline is investigated in this article. The finline characteristics are obtained by using the spectral-domain procedure in conjunction with the Galerkin method. Investigation of uniaxial substrates indicates that there is a particular optical axis direction for which the permittivity component in th... View full abstract»

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  • Wave Propagation on MESFET Electrodes and its Influence on Transistor Gain

    Publication Year: 1987, Page(s):1 - 8
    Cited by:  Papers (37)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB)

    A rigorous analysis of wave propagation along MESFET electrodes is presented. Both the losses caused by the channel and those caused by the finite electrode conductivity are included, together with small-signal amplification. Results from this wave analysis are used to determine overall gain. Conclusions concerning traveling-wave FET design, optimal gate width and related criteria are drawn. View full abstract»

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  • A Simplified Large-Signal Simulation of a Lumped Element TEO Based on a Phase Plane Technique

    Publication Year: 1987, Page(s):63 - 66
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The transferred electron device (TED) lumped circuit interaction is modeled by a phase plane technique. The results from this large-signal simulation are compared to those from a time-domain simulation based on the electron transport equations and are shown to be in good agreement. Results from the simulations are used as the design specifications for a J-band MIC TEO with excellent results indica... View full abstract»

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  • Analysis of Inductive Dielectric Posts in Rectangular Waveguide

    Publication Year: 1987, Page(s):48 - 59
    Cited by:  Papers (31)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1160 KB)

    A rapidly converging moment solution for the complete analysis of homogeneous dielectric posts of the inductive type in rectangular waveguide is presented. The moment method approach uses filamentary currents to simulate both the field scattered by the post and the field inside the post and in turn point-matches the continuity conditions for the tangential components of the electric and magnetic f... View full abstract»

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  • A Method for Measurement of Losses in the Noise-Matching Microwave Network While Measuring Transistor Noise Parameters

    Publication Year: 1987, Page(s):71 - 75
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    A new method for measuring the loss of a tuner network used as the noise-source admittance transformer in a noise parameter test set is presented. Since the method is based on noise figure measurements, the tuner losses are determined on-line while performing measurements for determining transistor noise parameters. Experiments carried out on a coaxial slide-screw tuner by means of a computer-assi... View full abstract»

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  • Small-Signal Second-Harmonic Generation by a Nonlinear Transmission Line (Comments)

    Publication Year: 1987, Page(s): 76
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (128 KB)

    In the above paper, the important problem of second-harmonic frequency generation along nonlinear transmission lines is studied. However, some remarks concerning the fundamental role of dissipation and dispersion should be given which are already known from the literature. View full abstract»

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  • Approximate Determination of the Characteristic Impedance of the Coaxial System Consisting of an Irregular Outer Conductor and a Circular Inner Conductor

    Publication Year: 1987, Page(s):61 - 63
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    An elementary formula is presented for the determination of the characteristic impedance of a coaxial transmission line consisting of a circular inner conductor and an irregular outer conductor. In this approach, the irregular outer conductor is replaced by an eccentric circular enter conductor which has the same "shield factor" as an irregular one at the extreme of a small wire, and the same form... View full abstract»

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  • Characteristic Impedance of Microstrip Lines

    Publication Year: 1987, Page(s):30 - 34
    Cited by:  Papers (36)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    It is shown that it is feasible to force the complex power P of microstrip line to be given by the usual circuit definition: P = I* V/2 where I and V are the current and voltage of the equivalent transmission line and * denotes complex conjugation. If this requirement is made, then the three common definitions of characteristic impedance (namely, the voltage-current, power-voltage, and power-curre... View full abstract»

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  • An Ultra-High-Speed GaAs Prescaler Using a Dynamic Frequency Divider

    Publication Year: 1987, Page(s):9 - 13
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    A high-speed, low-power-consumption prescaler for a phase lock stable oscillator is designed and fabricated with a GaAs MESFET BFL circuit. The prescaler of a 1/32 frequency divider is composed of a dynamic frequency divider for the prescaler first stage, a newly developed dual-phase signal generator, and master-slave T-type flip-flops for the presealer post stages. The fabricated 1/32 prescaler o... View full abstract»

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  • Transient Analysis of Coupling Between Crossing Lines in Three-Dimensional Space

    Publication Year: 1987, Page(s):67 - 71
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    Coupling of crossing lines has not been studied extensively since it is very complicated and difficult to estimate. But recently with the development of high density wiring and large-scale integration rigorous analysis of coupling effects has become more important. In this analysis not only the electric and magnetic fields but also the Poynting vector are important. Especially, the variation of th... 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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