IEEE Transactions on Microwave Theory and Techniques

Issue 11 • Nov. 1976

Filter Results

Displaying Results 1 - 25 of 49
  • [Back cover]

    Publication Year: 1976, Page(s):b3 - b4
    Request permission for commercial reuse | |PDF file iconPDF (120 KB)
    Freely Available from IEEE
  • Front cover - Nov. 1976

    Publication Year: 1976, Page(s):f1 - f2
    Request permission for commercial reuse | |PDF file iconPDF (228 KB)
    Freely Available from IEEE
  • Highly Reliable High-Power 86-GHz Components and Transmitter - Receiver Modules

    Publication Year: 1976, Page(s):693 - 701
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (956 KB)

    The reliability of semiconductor active devices is related to the junction temperature of diodes used. This paper describes the reliability design and performance of 86-GHz active components and transmitter-receiver modules for a guided millimeter-wave transmission system. The components are IMPATT oscillators, IMPATT amplifiers, varactor frequency multipliers, and Schottky-barrier diode upconvert... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Compact 60-GHz Transmitter - Receiver

    Publication Year: 1976, Page(s):794 - 797
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (541 KB)

    A new, compact, low-cost, and reliable 60-GHz transmitier-receiver was developed for civilian use. Common components are used for transmitting and receiving functions. An IMPATT oscillator generates the millimeter-wave output power for both the transmitter and the receiver local oscillator. A common antenna is also used for transmitting and receiving signals without a circulator. A mixer is used a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dielectric Waveguide Microwave Integrated Circuits - An Overview

    Publication Year: 1976, Page(s):806 - 814
    Cited by:  Papers (78)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1287 KB)

    An integrated circuit technique for microwave and millimeter wavelengths which uses refractive-type waveguides and signal processing coupled with planar integration techniques characteristic of microstrip microwave integrated circuits (MIC's) is described. Following a comparison of the optical and millimeter approaches to this circuit technique, a discussion of transmission lines and components fo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Contributors, Nov. 1976

    Publication Year: 1976, Page(s):888 - 895
    Request permission for commercial reuse | |PDF file iconPDF (2259 KB)
    Freely Available from IEEE
  • Annals of the IEEE coupon [advertisement]

    Publication Year: 1976, Page(s):b1 - b4
    Request permission for commercial reuse | |PDF file iconPDF (70 KB)
    Freely Available from IEEE
  • Measurement of Surface Resistance in Oversized Circular Waveguide at Millimeter Wavelengths (Short Papers)

    Publication Year: 1976, Page(s):886 - 887
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (232 KB)

    The increase of the surface resistance of oversized circular waveguides has been accurately evaluated at millimeter wavelengths by measuring attenuations of TE0n modes. The ratios of the effective resistances to the ideal resistances of the wall were found to be 1.27, 1.42, and 1.54 at 40, 60, and 80 GHz, respectively. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Generation of Millimeter-Wave Signals of High Spectral Purity

    Publication Year: 1976, Page(s):780 - 786
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (712 KB)

    The generation of millimeter-(mm-) wave signals phase coherent to a lower frequency reference or standard implies a large multiplication factor with inherent amplification of the short term instability or phase noise. This effect which usually is of secondary importance at lower microwave frequencies may become a limiting factor in the implementation of some mm-wave digital communication systems. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Schottky-Diode Realization for Low-Noise Mixing at Millimeter Wavelengths

    Publication Year: 1976, Page(s):702 - 706
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (648 KB)

    A short review of the current theory and technology of low-noise Schottky-barrier diodes for use at millimeter wavelengths is presented. Recent advances in fabrication technology are discussed which have yielded photolithographically produced GaAs diodes with a cutoff frequency in excess of 3000 GHz together with improved noise performance due to reduced contamination of the contact. Noise produci... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Excess Conduction Losses at Millimeter Wavelengths

    Publication Year: 1976, Page(s):853 - 858
    Cited by:  Papers (32)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (992 KB)

    Excess conduction losses and discrepancies between theoretical and measured values of waveguide attenuation and surface resistance are investigated. The results of comprehensive experiments to isolate the effects contributing to the discrepancies and excess losses are presented. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • E-Type Modes in Cylindrical Dielectric Waveguides with Periodic Boundary Perturbations (Short Papers)

    Publication Year: 1976, Page(s):872 - 875
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (616 KB)

    A general method for the analysis of the effects of periodic boundary perturbations on E-type modes of dielectric waveguides (DW's) is presented. The method is applied to hollow cylindrical dielectric waveguide (HCDW), and numerical solutions for surface wave and radiation mode intensities are given. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characterization of Magnetic Materials in the Millimeter-Wave Range (60-90 GHz) (Short Papers)

    Publication Year: 1976, Page(s):883 - 886
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (528 KB)

    It is shown that the measurement techniques of dielectric samples using open resonators can also be used to characterize ferrimagnetic materials. The parameters that are measured are the complex permittivity epsilonf* and the Delta H ferrite gyromagnetic resonance Iinewidth. The principle of the techniques used and an evaluation of ferrite material parameters from 10 to 70 GHz are prese... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • InP Gunn-Effect Devices for Millimeter-Wave Amplifiers and Oscillators

    Publication Year: 1976, Page(s):775 - 780
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (704 KB)

    CW InP Gunn oscillator performance has been extended up in frequency to the 26.5-40 and 50-75-GHz ranges. CW power outputs of 78 mW at 56 GHz have been attained to date. Amplifier evaluation in Ku band yielded useful gain from 26.5 to 40 GHz in two half-band circuits with noise figures ranging from 12.4 to 16.5 dB on flat profile devices. In a narrow-band amplifier circuit at 23 GHz, a device nois... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 80-GHz-Band Low-Loss Ring-Type Channel Diplexer Using a Semicircular Electric Mode

    Publication Year: 1976, Page(s):831 - 836
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (776 KB)

    A low-loss ring-type channel diplexer consisting of two deformed ring cavities, three directional couplers, a TE01 mode semicircular waveguide for the through channels, and a TE10 mode rectangular waveguide for the dropped channel, has been developed as a channel-dropping filter for a millimeter-wave channel multiplexing network. The structure and experimental results of the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Millimeter IMPATT Sources for the 130-170-GHz Range

    Publication Year: 1976, Page(s):738 - 743
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (760 KB)

    Device and circuit design of silicon IMPATT sources in the 130-170-GHz range is discussed. A 170-GHz source has been developed with 16 mW at the isolator output having an AM double-side-band noise-to-signal ratio of -115 dB per 1 kHz beyond 70 kHz from carrier. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Traveling-Wave Maser Amplifier for 85-90 GHz Using a Slot-Fed Image-Guide Slow-Wave Circuit

    Publication Year: 1976, Page(s):725 - 730
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (680 KB)

    A description is given of a newly developed traveling-wave maser amplifier for use at the new 13.7-m millimeter-wave radio teleseope of the Five College Radio Astronomy Observatory (FCRAO) near Amherst, MA. The maser amplifier, using iron-doped rutile as the active maser material, has achieved 15-dB electronic gain in the prototype over an instantaneous bandwidth of 140 MHz in the frequency range ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Foreword, Nov. 1976

    Publication Year: 1976, Page(s):683 - 684
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (200 KB)

    For more than a quarter of a century, engineers and scientists have been challenging the frontier of microwave technology with the prospect of extending it into millimeter-wave systems applications. The progress toward this goal had been relatively slow. In recent years, however, a significantly increased effort has been directed toward the development of various solid-state devices for use at mil... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • K-Band Traveling-Wave Maser Using Ruby

    Publication Year: 1976, Page(s):711 - 717
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (832 KB)

    A K-band ruby traveling-wave maser (TWM) has been developed, which has provided a decrease in system noise temperature compared to other front ends presently used in radio telescopes at K-band by an order of magnitude. The maser uses a new type of photoetched slow-wave structure, integral with the ruby rod, especially suitable for millimeter-wave masers. It also employs a new type of built-in isol... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Helical Coupler from Rectangular-to-Circular Waveguide

    Publication Year: 1976, Page(s):847 - 852
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (736 KB)

    The very-large-array (VLA) radio telescope utilizes a low-loss TE01 circular waveguide transmission system. During the design of this system a coupler was developed which couples directly from a standard millimeter rectangular waveguide to the TE01mode in highly over-moded circular waveguide. In contrast to previous couplers which used periodically spaced groups of coupling h... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dielectric Rod Antennas for Millimeter-Wave Integrated Circuits (Short Papers)

    Publication Year: 1976, Page(s):869 - 872
    Cited by:  Papers (40)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (352 KB)

    The design of dielectric rod antennas for millimeter-wave integrated-circuit applications is described. The experimental investigation was initially performed for sealed models at Ku band and then developed at V band. A moderately high-gain alumina dielectric rod antenna that is entirely compatible with insular integrated circuits has been designed and tested. The antenna has been fabricated and i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low-Loss Broad-Band EHF Circulator (Short Papers)

    Publication Year: 1976, Page(s):863 - 866
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (640 KB)

    A waveguide circulator design is reported that has resulted in a structurally rugged, thermally stable circulator with exceptional RF performance. With this design, insertion loss of less than 0.1 dB, more than 2MB isolation, and VSWR less than 1.2:1 have been achieved, each over 7 GHz of bandwidth from 27 to 34 GHz and 31 to 38 GHz. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 22-GHz Measurements of Dielectric Constants and Loss Tangents of Castable Dielectrics at Room and Cryogenic Temperatures (Short Papers)

    Publication Year: 1976, Page(s):881 - 883
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (328 KB)

    The dielectric constants and loss tangents of a number of castable dielectrics such as different epoxies were measured at 22 GHz at both room temperature and 77 K using a resonant cavity technique. It was found that these high-frequency values differ significantly from published low-frequency values, and that the losses decrease dramatically at cryogenic temperatures. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New Modes of Operation for Avalanche Diodes: Frequency Multiplication and Upconversion

    Publication Year: 1976, Page(s):768 - 775
    Cited by:  Papers (16)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (824 KB)

    The nonlinear properties of avalanche diodes can be exploited for use as frequency multipliers and upconverters. Among the various possible modes of avalanche device operations, the two mentioned above evoke great interest because of their high conversion efficiency. Basic principles, theoretical predictions, and experimental results are outlined in some detail and indicate both the present state ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Double-Layered Slot Line for Millimeter-Wave Integrated Circuits

    Publication Year: 1976, Page(s):827 - 831
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (504 KB)

    A new type of waveguide, a double-layered slot line, is described which is useful for millimeter-wave integrated circuits (IC's). Galerkin's method applied in the Fourier transform domain is used for analyzing the propagation characteristics of the dominant mode in the structure. Theoretical and experimental results are presented and compared. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

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

Meet Our Editors

Editor-in-Chief
Luca Perregrini
luca.perregrini@unipv.it

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