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IEEE Transactions on Microwave Theory and Techniques

Issue 10 • Oct 1986

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  • [Front cover - Oct. 1986 [T-MTT]]

    Publication Year: 1986, Page(s):f1 - f2
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    Freely Available from IEEE
  • Foreword (Oct. 1986 [T-MTT])

    Publication Year: 1986, Page(s): 993
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  • Patent Abstracts (Oct. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1077 - 1080
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  • Call for Papers (Oct. 1986 [T-MTT])

    Publication Year: 1986, Page(s): 1081
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  • [Advertisement]

    Publication Year: 1986, Page(s): 1082
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  • Getting The Picture [advertisement]

    Publication Year: 1986, Page(s): 1084
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  • [Back cover - Oct. 1986 [T-MTT]]

    Publication Year: 1986, Page(s):b1 - b2
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  • Electromagnetic Modeling for Microwave Imaging of Cylindrical Buried Inhomogeneities

    Publication Year: 1986, Page(s):1064 - 1076
    Cited by:  Papers (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1168 KB)

    Many diagnostic techniques in geophysics and civil engineering are based on the interaction of electromagnetic waves with objects buried in homogeneous or stratified media. Most of the investigations are concerned with the detection of buried objects, but a few papers have dealt with the problem of identifying the objects. The proposed method is based on the integral representation for a plane wav... View full abstract»

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  • New Design Approach for Wide-Band FET Voltage-Controlled Oscillators

    Publication Year: 1986, Page(s):1059 - 1063
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    A new, computer-assisted method, based on small-signal "S" parameters, is described for the systematic design of wide-band VCO's. The method has been applied to design 6-12-GHz and 12-18-GHz GaAs FET VCO's, and it has shown an excellent capability to predict the maximum obtainable tuning bandwidth. The tuning linearity of the VCO's has also been optimized Delta f/f <= +-0.4 percent over a 3-GHz... View full abstract»

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  • Inter-Injection-Locked Oscillators for Power Combining and Phased Arrays

    Publication Year: 1986, Page(s):1017 - 1025
    Cited by:  Papers (137)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1024 KB)

    This paper presents a novel approach to synchronizing the phases of several oscillators for coherent power combining either in a conventional power-combining circuit or in free space as each oscillator drives an antenna element in a phased array. A set of nonlinear differential equations is derived to predict the system's behavior. These equations are used in the computer-aided design and construc... View full abstract»

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  • Theory of Gyrotron Traveling-Wave Amplifiers

    Publication Year: 1986, Page(s):1044 - 1058
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1256 KB)

    A unified single-mode theory is developed for the gyrotron traveling-wave amplifier (gyro-TWA) at harmonics of electron gyro frequency, both in linear and nonlinear regimes. The theory is applicable to a wide class of waveguide cross sections and waveguide modes; it can also be useful for arbitrary harmonic numbers and with the generalized electron beam model. The waveguide fields are expanded int... View full abstract»

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  • Advances in Gallium Arsenide Monolithic Microwave Integrated-Circuit Technology for Space Communications Systems

    Publication Year: 1986, Page(s):994 - 1001
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1880 KB)

    Future communications satellites are likely to use gallium arsenide (GaAs) monolithic microwave integrated-circuit (MMIC) technology in most, if not all, communications payload subsystems. Multiple- scanning beam antenna systems are expected to use GaAs MMIC's to increase functional capability, to reduce volume, weight, and cost, and to greatly improve system reliability. RF and IF matrix switch t... View full abstract»

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  • Millimeter-Wave Imaging Sensor

    Publication Year: 1986, Page(s):1026 - 1035
    Cited by:  Papers (15)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2760 KB)

    A scanning 3-mm radiometer system has been built and used on a helicopter to produce moderate-resolution (0.5°) images of the ground. This millimeter-wave sensor can be used for a variety of remote-sensing applications and produces images through clouds, smoke, and dust when visual and IR sensors are not usable. The system is described and imaging results are presented. View full abstract»

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  • Advances in Microwave Acoustic Frequency Sources

    Publication Year: 1986, Page(s):1002 - 1016
    Cited by:  Papers (25)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3488 KB)

    This paper reviews the principal advances with microwave frequency sources that use mechanical vibrations and waves in their frequency-controlling elements. Specifically, the review discusses the direction microwave acoustic technology has taken in the utilization of bulk acoustic-wave (BAW), surface acoustic-wave (SAW), shallow bulk acoustic wave (SBAW), thin-film membrane, and composite structur... View full abstract»

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  • Binary Peak Power Multiplier and its Application to Linear Accelerator Design

    Publication Year: 1986, Page(s):1036 - 1043
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    This paper describes a new method of pulse compression, the binary power multiplier (BPM), a device which multiplies RF power in binary steps. It comprises one or more stages, each of which doubles the input power and halves the input pulse length. Practical designs are described and expressions for their compression efficiency are derived. The usefulness of pulse compression for accelerator desig... 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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Editor-in-Chief
Luca Perregrini
luca.perregrini@unipv.it

Editor-in-Chief
Jose Carlos Pedro
edit.tmtt@ua.pt