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IEEE Transactions on Microwave Theory and Techniques

Issue 5 • May 1987

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  • [Front cover - May. 1987 [T-MTT]]

    Publication Year: 1987, Page(s):f1 - f2
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    Freely Available from IEEE
  • Patent abstracts

    Publication Year: 1987, Page(s):539 - 542
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (298 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 mechatronics for MEMS and NEMS

    Publication Year: 1987, Page(s): 543
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    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1987, Page(s): 544
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    Freely Available from IEEE
  • [Back cover - May 1987 [T-MTT]]

    Publication Year: 1987, Page(s):b1 - b2
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    Freely Available from IEEE
  • A Study of Electric-Field Breakdown in E-Plane Lines at Centimeter and Millimeter Wavelengths

    Publication Year: 1987, Page(s):502 - 509
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    The microwave field breakdown in various E-plane transmission lines is investigated theoretically in the frequency range from 1 to 140 GHz. The influence of frequency, pressure, temperature, and inhomogeneity of the applied field on the breakdowm field value is discussed. The peak power-handling capability of unilateral and bilateral finlines is determined theoretically using a quasi-static evalua... View full abstract»

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  • FM Noise in Multiple-Device Oscillators (Short Paper)

    Publication Year: 1987, Page(s):533 - 535
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    The FM noise in a multiple-device oscillator is analyzed. It is shown that FM noise depends on the circuit parameters and the number N of the constituent devices. For a circuit-dependent critical value of N, FM noise is maximum and it is proportional to N-12/ when N is very large. View full abstract»

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  • Analysis of Edge-Coupled Shielded Strip and Slabline Structures

    Publication Year: 1987, Page(s):522 - 529
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    A method for the analysis of edge-coupled strip and slabline structures is presented which uses relatively simple algebraic expressions. The described procedure can be used to analyze directional couplers, interdigitated and comb line filters, and any other structures formed by an array of rectangular edge-coupled transmission lines, of arbitrary thickness, situated between two parallel plates. Th... View full abstract»

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  • Distortion In p-i-n Diode Control Circuits

    Publication Year: 1987, Page(s):492 - 501
    Cited by:  Papers (27)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    Traditionally, distortion in p-i-n diodes has been thought to be only a function of the carrier lifetime and frequency of operation. This understanding is based on empirical evidence and is not entirely accurate. This paper will discuss the origins of p-i-n diode distortion and study the effects of various devices parameters on distortion performance. Included in the investigation on single-diode ... View full abstract»

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  • Cutoff Wavenumbers and Modes for Annular-Cross-Section Waveguide with Eccentric Inner Conductor of Small Radius

    Publication Year: 1987, Page(s):510 - 515
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    Analytical expressions are derived for the cutoff wavenumbers and the corresponding modes in annnlar-cross-section waveguides having inner conductors of small radius. Waveguides with circular and rectangular outer boundary are considered. In tbe case of the circular eccentric annular waveguide, comparison is made between the values of cutoff wavenumbers computed from the expressions derived in thi... View full abstract»

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  • Measurements of Microstrip Effective Relative Permittivities

    Publication Year: 1987, Page(s):535 - 538
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    This paper presents normalized wide-bandwidth measurements of microstrip effective relative pemrittivities (epsiloneff) which were made on large-scale microstrip models. The experimental techniques are discussed, and the data are compared to the predictions of two recent closed-form design equations. These results agree favorably with the predictions of Kirschning aud Jansen's model. In... View full abstract»

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  • Transient Analysis of Partially Coupled Lines (Short Paper)

    Publication Year: 1987, Page(s):530 - 533
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    We propose a time-domain analysis method for partially coupled Iines by dividing them into "tubes." A tube of order N is a set of N coupled lines of equal lengths for which transient analysis based on modal decomposition is well known. An interface problem occurs at the junction of tubes of different orders. Such a case is analyzed by introducing two operators, called dilatation and shrinkage. View full abstract»

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  • Numerical Analysis of Surface-Wave Scattering by Finite Periodic Notches in a Ground Plane

    Publication Year: 1987, Page(s):481 - 486
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    Surface-wave scattering by finite periodic notches loaded in a ground plane is investigated in terms of a full-wave theory. The analytical method presented is based on a spectral-domain analysis where the sampling theorem is applied in order to discretize the final equation to be solved. Numerical calculations are earned out for reflected, transmitted, and radiated waves. The numerical results sho... View full abstract»

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  • Characterization of Linear and Nonlinear Properties of GaAs MESFET's for Broad-Band Control Applications

    Publication Year: 1987, Page(s):516 - 521
    Cited by:  Papers (24)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    GaAs MESFET's designed for control applications have improved switching performance compared to FET's designed for low-noise or high-power amplifiers. A broad-band switching cutoff frequency figure of merit close to 500 GHz has been achieved with both epitaxial and ion-implanted devices having n+ surface layers and/or channel dopings above 2.0 X 1017 cm-3. Power ha... View full abstract»

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  • Distributed Equivalent-Circuit Model for Traveling-Wave FET Design

    Publication Year: 1987, Page(s):487 - 491
    Cited by:  Papers (51)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    Based on reliable theoretical results, a distributed MESFET model is developed. It consists of equivalent-circuit elements which can be evaluated directly from FET material constants and geometry. The deviations with respect to full-wave-analysis results are investigated and some applications are shown. 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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