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IEEE Transactions on Microwave Theory and Techniques

Issue 11 • Nov. 1976

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  • [Back cover]

    Publication Year: 1976, Page(s):b3 - b4
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  • Front cover - Nov. 1976

    Publication Year: 1976, Page(s):f1 - f2
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    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»

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  • 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»

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  • Dielectric Waveguide Microwave Integrated Circuits - An Overview

    Publication Year: 1976, Page(s):806 - 814
    Cited by:  Papers (77)
    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»

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  • Contributors, Nov. 1976

    Publication Year: 1976, Page(s):888 - 895
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  • Annals of the IEEE coupon [advertisement]

    Publication Year: 1976, Page(s):b1 - b4
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  • Join IEEE, Nov. 1976

    Publication Year: 1976, Page(s): b2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (58 KB)

    First Page of the Article
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  • 200-GHz 50-mW CW Oscillation with Silicon SDR IMPATT (Short Papers)

    Publication Year: 1976, Page(s):858 - 859
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    Silicoin SDR IMPATT diodes have been operated continuously in 200- and 300-GHz bands. A p+-n junction structure was formed by thermal diffusion of boron and ion implantation of phosphorus ions. CW output power of 50 mW was obtained at 202 GHz with 1.3-percent conversion efficiency. At 301-GHz CW output power of 1.2 MW was observed. View full abstract»

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  • 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»

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  • Excess Conduction Losses at Millimeter Wavelengths

    Publication Year: 1976, Page(s):853 - 858
    Cited by:  Papers (30)
    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»

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  • The Challenge of Astronomy to Millimeter-Wave Technology

    Publication Year: 1976, Page(s):709 - 711
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    The inseparability of pure and applied science, or the synergy between scientific discovery and technological advance, has already been well illustrated in the field of radio astronomy. Recent astronomical discoveries in the millimeter range, and what can he expected to emerge from the far-infrared region, make further technological developments in these relatively unexploited areas of great inter... View full abstract»

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  • 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»

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  • 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»

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  • Analysis and Design of a Millimeter-Wave Bandpass Filter with a Stopband in the Specified Higher Frequencies

    Publication Year: 1976, Page(s):837 - 842
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The characteristics of a rectangular waveguide bandpass filter (BPF) are not well known in the high-frequency range where higher order modes can propagate. In this paper, the frequency response of a BPF, composed of symmetric inductive windows, is investigated. The range of frequency under investigation covers the region where not only the TE10 mode but also higher modes can propagate i... View full abstract»

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  • 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»

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  • A Low-Noise Millimeter MIC Mixer (Short Papers)

    Publication Year: 1976, Page(s):867 - 869
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    This short paper describes a Ka-band integrated circuit mixer which, when integrated with a 2.5-dB-noise-figure IF amplifier, yields a 6-d13 double-sideband noise figure over the band 36.5-38.5 GHz. A readily machinable low dielectric constant substrate has been utilized. View full abstract»

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  • 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»

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  • A Low-Noise 47-GHz Mixer Using a Permanent Josephson Junction

    Publication Year: 1976, Page(s):706 - 709
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    A new method to produce permanent Josephson junctions for millimeter-wave mixers is reported. In contrast to conventional point contacts which are mechanically unstable and require adjustments after each cooldown, these point contact junctions are set at room temperature, stay mechanically stable, and can be temperature cycled without readjustments. Using these junctions in a modified Sharpless wa... View full abstract»

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  • A 230-GHz Radiometer System Employing a Second-Harmonic Mixer (Short Papers)

    Publication Year: 1976, Page(s):859 - 861
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A radiometer system for use in the lambda ~ 1.3 mm (v ~ 230 GHz) region has been constructed and used for radio astronomical observations. A second-harmonic mixer employing a single Schottky diode downconverts the incident power to an IF frequency of -1400 MHz. The measured double-sideband system noise temperature is 6000 K (noise figure = 13 dB) and the double-sideband mixer conversion loss is ca... View full abstract»

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  • Inverted Strip Dielectric Waveguide for Millimeter-Wave Integrated Circuits

    Publication Year: 1976, Page(s):821 - 827
    Cited by:  Papers (97)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    A new type of dielectric waveguide, which has a number of advantages over other previously available waveguide structures for millimeter-wave integrated circuits, is described. Dispersion characteristics and the field distributions in the waveguide are calculated using the concept of effective dielectric constant. Field distributions have been measured in the 80-GHz range in order to check the acc... View full abstract»

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  • High-Power 50-GHz Double-Drift-Region IMPATT Oscillators with Improved Bias Circuits for Eliminating Low-Frequency Instabilities

    Publication Year: 1976, Page(s):731 - 737
    Cited by:  Papers (12)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    Low-frequency instabilities in millimeter-wave double-drift-region (DDR) IMPATT diodes are investigated and new oscillator circuits with the improved bias circuits for eliminating the low-frequency instability are developed. DDR IMPATT diodes mounted in these circuits exhibited a maximum free-running oscillation power of 1.6 W at 55.5 GHz with 11.5-percent conversion efficiency. A highly stabilize... View full abstract»

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  • Foreword, Nov. 1976

    Publication Year: 1976, Page(s):683 - 684
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    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»

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  • A New Form of Ferrite Device for Millimeter-Wave Integrated Circuits (Short Papers)

    Publication Year: 1976, Page(s):876 - 879
    Cited by:  Papers (9)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    A new form for ferrite devices has been developed which finds extensive applications in the integrated circuits from Ku band to millimeter wavelengths. The new configuration is compatible with the emerging technology of millimeter-wave image line integrated circuits (MILIC's) which use dielectric image line as the guiding structure. Development of a MILIC isolator is discussed in detail to spotlig... View full abstract»

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  • 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»

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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
Luca Perregrini
luca.perregrini@unipv.it

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