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IEEE Transactions on Microwave Theory and Techniques

Issue 4 • Date Apr. 1983

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Displaying Results 1 - 15 of 15
  • [Front cover - Feb. 1983 Transactions]

    Publication Year: 1983, Page(s):f1 - f2
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    Freely Available from IEEE
  • The Measurement of Complex Reflection Coefficient by Means of a Five-Port Reflectometer

    Publication Year: 1983, Page(s):321 - 326
    Cited by:  Papers (7)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    A detailed analysis of the five-port reflectometer is presented in this paper. The possibility and application limitation of using a five-port to measure complex reflection coefficients is discussed and the related design consideration is derived. From the poiut of view of minimum measurement error, an optimized, multi-octave five-port circuit is suggested and realized by ordinary microwave integr... View full abstract»

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  • Finite Element Analysis of Lossy Waveguides-Application to Microstrip Lines on Semiconductor Substrate

    Publication Year: 1983, Page(s):326 - 331
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (613 KB)

    The development of Maxwell's equations is made considering the electromagnetic fields as vector distributions. With the aid of the finite element method, an analysis of lossy shielded inhomogenous waveguides of arbitrary shape is described. To solve the complex matrix system an iterative procedure is presented. The method is applied to study the propagation on MIS or Schottky contact microstrip li... View full abstract»

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  • A Coordinate-Free Approach to Wave Reflection from a Uniaxially Anisotropic Medium

    Publication Year: 1983, Page(s):331 - 336
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (563 KB)

    This paper presents a coordinate-free method of solving the problem of electromagnetic wave reflection from the surface of a uniaxially anisotropic medium. Based on the direct manipulation of vectors, dyadics, and their invariants, the method eliminates the use of coordinate systems. It facilitates solutions and provides results in a greater generality. The paper contains the following results in ... View full abstract»

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  • Guided-Wave Experiments with Dielectric Waveguides Having Finite Periodic Corrugation

    Publication Year: 1983, Page(s):337 - 344
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (830 KB)

    A planar dielectric waveguide having finite periodic rectangular corrugation is investigated analytically and experimentally, in case of surface waves propagating at an angle to the corrugation. In analytical considerations, a finitely corrugated guide is regarded as consisting of many step discontinuities connected by a length of uniform slab waveguide, and its propagation characteristics in the ... View full abstract»

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  • Hybrid Modes in Circular Cylindrical Optical Fibers

    Publication Year: 1983, Page(s):344 - 350
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (716 KB)

    The classification of hybrid modes in circular cylindrical optical fibers is studied. It is shown that problems of the mode classifications, i.e., the crossover of the dispersion characteristics and the remarkable changes of the polarization states and the field configurations, are caused by the coupling of the HE-type and EH-type modes. View full abstract»

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  • Empirical Expressions for Fin-Line Design

    Publication Year: 1983, Page(s):350 - 356
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    This paper presents empirical expressions in closed form for the design of unilateral and bilateral fin-lines. The guided wavelength and the characteristic impedance calculated with these expressions agree, typically, within +- 2 percent with values obtained using numerical techniques in the normalized frequency range 0.35≤= b/ lambda ≤= 0.7, which is suitable for most practical applications... View full abstract»

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  • A Quasi-Optical Nulling Method for Material Birefringence Measurements at Near-Millimeter Wavelengths

    Publication Year: 1983, Page(s):356 - 358
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (419 KB)

    A quasi-optical technique for the measurement of birefringence is demonstrated at 245 GHz. The technique is applied to crystal quartz. The measured values are compared with values reported at nearby frequencies. The technique is used to determine the difference between the ordinary and extraordinary real indices of refraction directly, rather than by deducing the difference from separate measureme... View full abstract»

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  • Large Signal Design of GaAs FET Oscillators Using Input Dielectric Resonators

    Publication Year: 1983, Page(s):358 - 361
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (485 KB)

    A dielectric resonator may be placed at the input of an active two-port device (FET or microwave transistor) yielding a stable frequency source. For this input configuration, a large signal design is presented. The method is simple, and power output prevision is also reached. The practical results obtained with an X-band medium-power oscillator are presented. View full abstract»

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  • Coupling Between Microstrip Line and Image Guide through Small Apertures in the Common Ground Plane

    Publication Year: 1983, Page(s):361 - 363
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (303 KB)

    A design theory is described for coupling between microstrip line and image guide through small coupling holes in a common ground plane. A five-slot Chebyshev coupler is designed based on coupling through a rectangular slot. The theoretical results are compared with experimental results. View full abstract»

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  • Comments on "Some Pitfalls In Millimeter-wave Noise Measurements Utiking A Cross-correlation Receiver

    Publication Year: 1983, Page(s): 364
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (127 KB)

    In the above paper, 1 Sutherland and van der Ziel analyze some problems encountered during noise measurements at very low temperatures with a cross-correlation receiver. It is shown that, if a hybrid junction is used to split the noise signal from the device under test (DUT) into the two receiver channels, the correlation between the receiver input signals, which contains the useful information, v... View full abstract»

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  • Comments on "The Dynamical Behavior of a Singie-Mode Optical Fiber Strain Gage

    Publication Year: 1983, Page(s):364 - 366
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (281 KB)

    In the above paper, Martinelli [1] presents a very interesting and useful comparison between the dynamical response of a single-mode fiber optic and resistive strain gages in the frequency range 25 -250 Hz. As shown by the author, the frequency spectrum of the phase change signal and the resistive strain gage signal are in very good agreement. View full abstract»

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  • Patent abstracts

    Publication Year: 1983, Page(s):367 - 370
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (285 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: 1983, Page(s): 371
    Request permission for commercial reuse | PDF file iconPDF (155 KB)
    Freely Available from IEEE
  • [Back cover - Feb. 1983 Transactions]

    Publication Year: 1983, Page(s):b1 - b2
    Request permission for commercial reuse | PDF file iconPDF (144 KB)
    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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Jenshan Lin
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