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Microwave Theory and Techniques, IEEE Transactions on

Issue 2 • Date Feb. 1982

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Displaying Results 1 - 17 of 17
  • [Front cover - Feb. 1982 Transactions]

    Publication Year: 1982 , Page(s): f1 - f2
    Save to Project icon | Request Permissions | PDF file iconPDF (181 KB)  
    Freely Available from IEEE
  • Recent Developments in Fiber Optic Devices

    Publication Year: 1982 , Page(s): 121 - 131
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1239 KB)  

    The advent of the fundamental transverse mode laser diode and low loss optical fiber has extended the wavelength range for communication systems into the optical spectrum region. The indispensable elements for the optical communication systems are light source, transmission medium, and detector. Recent developments in this area in Japan, with particular emphasis on the fundamental transverse mode ... View full abstract»

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  • Prediction of Laser Wavelength for Minimum Total Dispersion in Single-Mode Step-Index Fibers

    Publication Year: 1982 , Page(s): 131 - 140
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (858 KB)  

    Pulse dispersion in single-mode optical fibers with step-index profiles has been analyzed in the past using asymptotic methods. One of these methods is based on the approximate characteristic equation for the dominant mode of propagation in these structures, obtained using the "weakly guided" condition. Other methods use approximations for certain parameters of this equation. Utilizing numerical m... View full abstract»

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  • Equivalent Representations of Nonuniform Transmission Lines Based on the Extended Kuroda's Identity

    Publication Year: 1982 , Page(s): 140 - 146
    Cited by:  Papers (14)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (597 KB)  

    Kuroda's identity may be extended to circuits consisting of lumped reactance elements and nonuniform transmission lines. It is shown that these circuits are equivalent to circuits consisting of cascade connections of nonuniform transmission lines whose characteristic impedance distributions are different from original ones, lumped reactance elements, and ideal transformers. If a characteristic imp... View full abstract»

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  • A Study on Circular Disk Resonators on a Ferrite Substrate

    Publication Year: 1982 , Page(s): 147 - 154
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (691 KB)  

    In this paper, an exact analysis of a circular disk resonator on a magnetized ferrite substrate which can be used for tunable filters and circular polarizing radiators is presented. The method makes use of Galerkin's method applied in the Hankel transform domain and is quite suitable for numerical calculation. The calculated values of the resonant frequencies and unloaded Q's are shown to be in go... View full abstract»

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  • Theory and Design of Low-Insertion Loss Fin-Line Filters

    Publication Year: 1982 , Page(s): 155 - 163
    Cited by:  Papers (31)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (849 KB)  

    A design theory is described for low-insertion loss fin-line filters that includes both higher order mode propagation and finite thickness of the dielectric substrate and the metallic fins. Design data for three-resonator type fin-line filters with several substrate thicknesses are given for midband frequencies of about 15, 34, and 66 GHz. The measured insertion losses in the passband are 0.25, 0.... View full abstract»

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  • Radial-Symmetric N-Way TEM-Line IMPATT Diode Power Combining Arrays

    Publication Year: 1982 , Page(s): 163 - 173
    Cited by:  Papers (5)  |  Patents (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1130 KB)  

    Circuit design and stability criteria are developed for a new class of IMPATT diode power combiners. These combiners make use of radial-symmetric circuits and provide an optimal integration of device and circuit properties to perform the power adding function. Both lossless N-way combiners and resistively stabilized N-way combiners are considered. Theoretical examples of this combining technique a... View full abstract»

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  • Tunable Low-Loss UHF Circulator for Cryogenic Applications

    Publication Year: 1982 , Page(s): 173 - 176
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (590 KB)  

    A 600-MHz above-resonance circulator operating at 4.2 K has been constructed and successfully tested. Its high isolation (>30 dB), extremely low insertion loss (<0.1 dB), low VSWR (< 1.1), and acceptable instantaneous bandwidth (~6 percent) make it a promising device for utilization in narrow-band very low-noise systems. View full abstract»

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  • The Thermal Response of a Human in the Near-Zone of a Resonant Thin-Wire Antenna

    Publication Year: 1982 , Page(s): 177 - 185
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (904 KB)  

    The thermal response of a human in the near-zone of an antenna was determined by numerical procedures. The approach taken was to modify the heat transfer equations for man in air to account for thermal loading due to the energy absorbed from the radiating antenna. The absorbed power density distribution in the human body was determined by considering the body and antenna to be a coupled system in ... View full abstract»

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  • A Six-Port Reflectometer and its Complete Characterization by Convenient Calibration Procedures

    Publication Year: 1982 , Page(s): 186 - 192
    Cited by:  Papers (31)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (779 KB)  

    A simple six-port reflectometer and two methods of calibration using either 51/2 or 61/2 standard terminations are described. High precision is obtained using diode detectors, which are calibrated in situ against a single thermistor power meter. The addition of a few extra components provides a moderately accurate visual display in real time over the 1-8-GHz band. View full abstract»

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  • A Broad-Band Amplifier Output Network Design

    Publication Year: 1982 , Page(s): 192 - 196
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (463 KB)  

    An analytic design method for a lossy gain-compensating network is presented and the advantages of lossy networks are discussed. Examples of two-stage amplifiers using FET's and bipolar transistors are presented to show the feasibility of this particular network in low power amplifier designs. These amplifiers obtain gains of 15.4+-0.5 dB with a 2.5-dB maximum noise figure in the 4.0--6.0-GHz freq... View full abstract»

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  • Application of the Galerkin Method for Determination of Quasi TE/sub i0k/ Mode Frequencies of a Rectangular Cavity Containing a Dielectric Sample

    Publication Year: 1982 , Page(s): 196 - 198
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (295 KB)  

    A new method determination of quasi TE i0k mode frequencies of a rectangular cavity containing a dielectric sample is presented. A centrally loaded dielectric sample fills completely only one dimension of a cross section of the cavity. The calculations are based on the Galerkin method using a new suitable set of basis functions. The theoretical results are illustrated by experiments. Th... View full abstract»

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  • The Conservation of Complex Power Technique and E-Plane Step-Diaphragm Junction Discontinuities

    Publication Year: 1982 , Page(s): 198 - 201
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (361 KB)  

    The singular integral equation solution due to L. Lewin and his colleagues for the E-plane step-diaphragm junction discontinuity are extended by the conservation of complex power technique (CCPT). The singular integral equation method provides formulas for the junction susceptance (both with and without a diaphragm) which are valid only in the quasi-static limit. In contrast, the CCPT provides num... View full abstract»

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  • Multifrequency Cryogenically Cooled Front-End Receivers for the Westerbork Synthesis Radio Telescope

    Publication Year: 1982 , Page(s): 201 - 209
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1129 KB)  

    Four of the fourteen 25-m antennas of the Westerbork Synthesis Radio Telescope have been equipped with 6- and 21-cm wave-length receivers based on cryogenically cooled parametric amplifiers and up-converters. Special care has been given to the design of the input network to achieve maximum sensitivity. An integrated feed launcher and preamplifier system are housed in a dewar at cryogenic temperatu... View full abstract»

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  • Patent abstracts

    Publication Year: 1982 , Page(s): 210 - 213
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (249 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): 214
    Save to Project icon | Request Permissions | PDF file iconPDF (342 KB)  
    Freely Available from IEEE
  • [Back cover - Feb. 1982 Transactions]

    Publication Year: 1982 , Page(s): b1 - b2
    Save to Project icon | Request Permissions | PDF file iconPDF (76 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..

Full Aims & Scope

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Editor-in-Chief
Jenshan Lin
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