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IEEE Transactions on Microwave Theory and Techniques

Issue 6 • Jun. 1982

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  • [Front cover - June 1982 Transactions]

    Publication Year: 1982, Page(s):f1 - f2
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  • Ultra-Low-Noise 1.2- to 1.7-GHz Cooled GaAsFET Amplifiers

    Publication Year: 1982, Page(s):849 - 853
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    A 3-stage GaAsFET amplifier operating at 13 K, utilizing source inductance feedback is described. The amplifier has a noise temperature of <10 K, input return loss >15 dB over the 1.2- to 1.7-GHz frequency range. View full abstract»

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  • GaAsFET Mount Structure Design for 30-GHz-Band Low-Noise Amplifiers

    Publication Year: 1982, Page(s):854 - 858
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (413 KB)

    This paper describes a GaAsFET mount design method for 30-GHz-band low-noise reflection-type amplifiers with the metal wall as a feedback circuit. Two examples of 30-GHz-band low-noise amplifiers are described; one with wide-band response and the other with high-gain response. The wide-band amplifier has 13-dB gain and 8.5-dB noise figure in the frequency range from 27.5 GHz to 29.1 GHz. The high ... View full abstract»

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  • Analysis of Image Recovery Down Converter Made by Planar Circuit Mounted in a Waveguide

    Publication Year: 1982, Page(s):858 - 868
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1040 KB)

    This paper presents an analysis of a superhigh frequency (SHF) down converter using a Schottky-barrier mixer diode and a planar circuit mounted in a waveguide. The analysis assumes that the mixer diode consists of a nonlinear conductance g, a junction capacitance C j, an ohmic spreading resistance R s, and several parasitic susceptances. The frequency performance of the imped... View full abstract»

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  • Single-Gate MESFET Frequency Doublers

    Publication Year: 1982, Page(s):869 - 875
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    A simple analytic model of the FET frequency doubler is used to determine the relative contributions of the various nonlinearities to harmonic generation. FET doubler conversion gain and its variation with frequency relative to the fundamental frequency available gain is also estimated. Large-signal computer simulations are used to determine the validity of the analytic model and provide further i... View full abstract»

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  • P-I-N Diodes for Low-Frequency High-Power Switching Applications

    Publication Year: 1982, Page(s):875 - 882
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1319 KB)

    The development of high-power low-frequency diodes, conditions for their operation, and results measured in actual circuits are described. Harmonic distortion at 500 kHz and 2 MHz has been found to decrease with increasing diode lifetime and forward-bias current. Large reverse bias voltages are necessary at low frequencies to keep the RF voltage swing from penetrating the forward conduction region... View full abstract»

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  • Coupling Characteristics Between Single-Mode Fiber and Square Law Medium

    Publication Year: 1982, Page(s):882 - 893
    Cited by:  Papers (17)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1202 KB)

    The coupling characteristics between a single-mode fiber and a square law medium are theoretically and experimentally discussed in order to obtain the optimum coupling design for a variety of single-mode fiber optical devices using square law media. In theoretically analyzing coupling efficiency, it has been possible to evaluate a Gaussian beam, in a dielectric, which has passed through a square l... View full abstract»

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  • Propagation in Transversely Magnetized Compressible Plasma Between Two Parallel Planes

    Publication Year: 1982, Page(s):894 - 899
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (495 KB)

    The propagation of waves in compressible single fluid macroscopic plasma between two parallel, perfectly conducting planes, with a transverse static magnetic field parallel to the boundaries is investigated. It is shown that the TE waves are not affected by either the static magnetic field or the compressibility of the plasma, while the TM wave will be affected by both. View full abstract»

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  • Network Representation and Transverse Resonance for Layered Anisotropic Dielectric Waveguides

    Publication Year: 1982, Page(s):899 - 905
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (727 KB)

    First, the matrix wave impedance in an unbounded uniaxial lossless dielectric material is determined. Next, the transformation properties of the input impedance of a terminated anisotropic layer are established. It is then demonstrated that the boundary conditions in an anisotropic dielectric slab waveguide lead to a generalized transverse resonance condition involving the previously obtained matr... View full abstract»

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  • Accurate Analysis of Coupled Strip-Finline Structure for Phase Constant, Characteristic Impedance, Dielectric and Conductor Losses

    Publication Year: 1982, Page(s):906 - 910
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (557 KB)

    Propagation constant, characteristic impedance, dielectric loss, and conductor loss of coupled strip-unilateral finline is here computed for the first time. The technique of analysis is based on the assumption of hybrid wave propagation implemented through the spectral domain approach for the phase constant. A perturbation method together with the spectral analysis has been applied to find the los... View full abstract»

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  • Assessing the Error in a Finite Element Solution

    Publication Year: 1982, Page(s):911 - 915
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    In this paper a method of error assessment for the finite element method is discussed. This idea is used to optimize grid refinement schemes both for singularities and also for handling unbounded regions. It is shown how those elements, or groups of elements, that make large contributions to the error term can be identified so that local grid refinements can he placed in the most advantageous regi... View full abstract»

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  • Analysis of a Microwave FET Oscillator Using an Efficient Computer Model for the Device

    Publication Year: 1982, Page(s):915 - 917
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (291 KB)

    This paper presents a time domain analysis of a microwave 10-GHz FET oscillator, which employs a practical and efficient computer model for the FET. Good agreement is demonstrated between the predicted and measured performance. A sensitivity analysis of the circuit is performed with respect to some of the FET parameters. This is useful information to estimate variation in production. View full abstract»

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  • 100 MHz to 17 GHz Dual-Gate Variable-Gain Amplifier

    Publication Year: 1982, Page(s):918 - 919
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (199 KB)

    A simple analytical approach to wide-band amplification using commercially available dual-gate FET's has enabled an ultra-wide-band flat-gain amplifier to be built in the 100-MHz to 17-GHz bandwidth with a VSWR less than 3.5- and 15-dB gain control. A description is given, including first experimental results. View full abstract»

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  • Comparison of Single- and Dual-Gate FET Frequency Doublers

    Publication Year: 1982, Page(s):919 - 920
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (219 KB)

    The performance of single- and dual-gate FET frequency doublers is studied by analysis and computer simulation. The theoretical predictions are in good agreement with experimental results. It is shown that the superior performance of the dual-gate FET doubler is largely due to the higher intrinsic gain of the active device. View full abstract»

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  • Quasi-Static Characteristics of Coplanar Waveguide on a Sapphire Substrate with its Optical Axis Inclined

    Publication Year: 1982, Page(s):920 - 922
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (298 KB)

    A variational expression is presented for the line capacitance of a coplanar waveguide on a single-crystal sapphire substrate with a tilted optical axis. Numerical results are obtained by means of the Ritz procedure. View full abstract»

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  • Nonreciprocal Propagation Characteristics of YIG Thin Film

    Publication Year: 1982, Page(s):922 - 925
    Cited by:  Papers (41)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (391 KB)

    The characteristics of an optical nonreciprocal phase shifter, with which optical circulators can be constructed, are investigated. We have measured the nonreciprocal phase shift of an appropriately magnetized yttrium iron garnet (YIG) thin film and thus confirmed experimentally that an AIR/YIG/GGG structure can function as an optical nonreciprocal phase shifter. View full abstract»

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  • Patent abstracts

    Publication Year: 1982, Page(s):925 - 929
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (417 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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  • [Advertisement]

    Publication Year: 1982, Page(s): 930
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  • Membership Application, IEEE Microwave Theory and Techniques Group

    Publication Year: 1982, Page(s): 931
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    Freely Available from IEEE
  • [Back cover - Jun.1982 Transactions]

    Publication Year: 1982, Page(s):b1 - b2
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    Freely Available from IEEE

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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