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IEEE Transactions on Microwave Theory and Techniques

Issue 12 • Date Dec 1986

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  • Call For Papers (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s): bm1
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  • [Front cover - Dec. 1986 [T-MTT]]

    Publication Year: 1986, Page(s):f1 - f2
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  • Index (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):i1 - i37
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  • Table of contents (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1237 - 1238
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  • Editor's Overview (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s): 1239
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  • The 1986 MTT-S International Microwave Symposium (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1240 - 1252
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  • Awards (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1253 - 1258
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  • Paper Awards (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1259 - 1261
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  • 1986 IEEE MTT-S International Microwave Symposium Keynote Address (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1262 - 1264
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  • 1986 MTT Symposium Digest Table of Contents (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1265 - 1269
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  • IEEE 1986 Microwave and Millimeter-Wave Monolithic Circuits Symposium Digest Table of Contents (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s): 1270
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  • Foreward (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s): 1515
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  • Patent Abstracts (Dec. 1986 [T-MTT])

    Publication Year: 1986, Page(s):1576 - 1578
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  • [Back cover - Dec. 1986 [T-MTT]]

    Publication Year: 1986, Page(s):b1 - b2
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  • Characteristics of Multiconductor, Asymmetric, Slow-Wave Microstrip Transmission Lines

    Publication Year: 1986, Page(s):1471 - 1477
    Cited by:  Papers (27)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    Spectral-domain technique has heen applied to analyze multiconductor, asymmetric, slow-wave microstrip lines. It is observed that 1) the coupled slow-wave microstrip line on a two-layer substrate may have substantially different propagation constants for even and odd modes and 2) the slow-wave factor of an odd mode of coupled microstrip lines on a three-layer substrate may be equal to or larger th... View full abstract»

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  • Multilayer Planar Structures for High-Directivity Directional Coupler Design

    Publication Year: 1986, Page(s):1442 - 1449
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    One of the problems that appears in the directional couplers designed with nonhomogeneous coupled transmission lines (CTL's) is their inherently poor directivity, due to the difference between the mode phase velocities. In order to overcome this defect, several multilayer configurations for high-directivity coupler design are proposed and studied in this paper. The analysis has been achieved by me... View full abstract»

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  • The Finite-Difference-Time-Domain Method and its Application to Eigenvalue Problems

    Publication Year: 1986, Page(s):1464 - 1470
    Cited by:  Papers (129)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    This paper describes the application of the finite-difference method in the time domain to the solution of three-dimensional (3-D) eigenvalue problems. Maxwell's equations are discretized in space and time, and steady-state solutions are then obtained via Fourier transform. While achieving the same accuracy and versatility as the TLM method, the finite-difference-time-domain (FD-TD) method require... View full abstract»

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  • A New Model for the Apparent Characteristic Impedance of Finned Waveguide and Finlines

    Publication Year: 1986, Page(s):1437 - 1441
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    This paper presents a new model for the apparent characteristic impedance of finned waveguide and finlines from the standpoint of per-unit-length capacitance of the fins, obtained by conformal mapping, and of the waveguide, obtained from cutoff wavelengths, without going into the controversy of definition. The model strongly supports the power-voltage definition. Closed-form synthesis equations ha... View full abstract»

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  • A High-Performance 2-18.5-GHz Distributed Amplifier- Theory and Experiment

    Publication Year: 1986, Page(s):1559 - 1568
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB)

    A high-performance 2-18.5-GHz monolithic GaAs MESFET distributed amplifier has been designed and fabricated. The distributed amplifier is analyzed theoretically using a normalized transmission matrix approach and a closed-form gain equation is presented for the MMIC m-derived drain-line case. Theoretical predictions are compared to measured results and more complicated CAD models. The measured sma... View full abstract»

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  • A Compact 4-GHz Linearize for Space Use

    Publication Year: 1986, Page(s):1327 - 1332
    Cited by:  Papers (18)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    A compact and lightweight 4-GHz linearizer for satellite TWTA's has been developed by using MIC packages with chip devices. The linearize is composed of a preamplifier, a predistortion Iinearizer, and a limiting ampfifier, consisting of two, three, and three 25x12.5-mm packages, respectively. It improves the noise power ratio for an FM system by 3 dB and the required C/N for a TDMA system by 4.5 d... View full abstract»

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  • Analysis Method for Generalized Suspended Striplines

    Publication Year: 1986, Page(s):1457 - 1463
    Cited by:  Papers (25)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    This, paper describes an effective analysis method suited to generalized suspended striplines, that is, planar transmission lines having multiple conductor sheets on multiple substrates, and multiple supporting grooves or pedestals. Two example striplines structures are analyzed based on this method. Some experimental results are also shown. View full abstract»

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  • Dispersion of Transient Signals in Microstrip Transmission Lines

    Publication Year: 1986, Page(s):1427 - 1436
    Cited by:  Papers (59)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (912 KB)

    The distortion of an electrical pulse caused by dispersion as it propagates along a microstrip line is investigated. A model for dispersion of the phase constant is selected to meet the frequency, accnracy, and microstrip parametric requirements. Numerical integration and Taylor series expansion approximation techniques are used to compute the shape of dc dispersed pulses having square and Gaussia... View full abstract»

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  • Coherent RF Error Statistics

    Publication Year: 1986, Page(s):1413 - 1420
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    RF error statistics for power, voltage, and phase are derived under the assumptions that the error component is coherently related to the desired signal, that its magnitude is constant, and that its phase is equally likely and uniformly distributed from 0 to 360°. The error statistics which result from these assumptions have nonzero mean values for power and voltage and standard deviations wh... View full abstract»

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  • Cost-Effective High-Performance Monolithic X-Band Low-Noise Amplifiers

    Publication Year: 1986, Page(s):1553 - 1558
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1312 KB)

    A low-cost, high-performance X-band amplifier with ion-implanted MESFET technology has been demonstrated. Various design, material, and processing approaches have been evaluated in terms of yield, cost, and device performance. An average noise figure of 2.2 dB and a standard deviation of 0.1 dB, with an associated gain of 22.5 dB and a standard deviation of 0.8 dB at the center frequency band of 9... View full abstract»

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  • A Printed-Circuit Hybrid-Ring Directional Coupler for Arbitrary Power Divisions

    Publication Year: 1986, Page(s):1401 - 1407
    Cited by:  Papers (42)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    A directional coupler in the form of a hybrid ring particularly suited for printed circuits is described. The maximum power-split ratio between the two output ports of a printed-circuit conventional hybrid-ring coupler is limited by the highest impedance line that can be realized [1]. The hybrid-ring directional coupler described in this paper allows a larger power-split ratio for the same impedan... 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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Meet Our Editors

Editor-in-Chief
Dominique Schreurs
Dominique.Schreurs@ieee.org

Editor-in-Chief
Jenshan Lin
jenshan@ieee.org