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Microwaves, Optics and Antennas, IEE Proceedings H

Issue 2 • Date April 1980

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Displaying Results 1 - 13 of 13
  • Special issue of IEE Proceedings Part H: Microwave Measurements

    Publication Year: 1980
    IEEE is not the copyright holder of this material | PDF file iconPDF (146 KB)
    Freely Available from IEEE
  • New expression for mismatch uncertainty when measuring microwave attenuation

    Publication Year: 1980, Page(s):66 - 69
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (453 KB)

    To find the mismatch uncertainty associated with a microwave-attenuation measurement, it is essential to determine the moduli of the source-and load-reflection coefficients at the insertion point and the moduli of the S parameters of the device under test. If the phase angles of the S parameters of the device under test are also measured, the mismatch uncertainty can be calculated from a new equat... View full abstract»

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  • International harmonisation of microwave standards

    Publication Year: 1980, Page(s):70 - 73
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (459 KB)

    To enable measurements made in different countries to be related, international harmonisation of standards is necessary. Details are given of the programme of international comparisons of microwave standards to achieve this which has been in operation for a number of years and of the results obtained. Further intercomparisons are planned. View full abstract»

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  • Measurement of symmetrical waveguide discontinuities using the eigenvalue approach

    Publication Year: 1980, Page(s):74 - 81
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (746 KB)

    The behaviour of symmetrical 2-port networks is usually described in terms of their scattering, impedance or admittance matrices. Since the entries of these matrices are linear combinations of their eigenvalues the latter quantities provide an alternative description of network parameters provided they can be readily measured. In the case of symmetrical 2-port networks the eigenvectors necessary t... View full abstract»

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  • Book review: Acousto-Optics

    Publication Year: 1980
    IEEE is not the copyright holder of this material | PDF file iconPDF (115 KB)
    Freely Available from IEEE
  • Simplified calibration equations for the unidirectional and bidirectional computer-corrected network analyser

    Publication Year: 1980, Page(s):82 - 86
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (506 KB)

    Circuit analysis of network analysers has previously been carried out employing flowgraphs based on Mason's rule, and error networks at each measurement port to simulate imperfections of the measurement system. None of these techniques is necessary in circuit analysis by matrix renormalisation. The renormalisation transforms give directly the calibration and measurement equations in terms of the a... View full abstract»

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  • Microstrip coupler suitable for use as a 6-port reflectometer

    Publication Year: 1980, Page(s):87 - 91
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (626 KB)

    The theory of a microstrip 6-port directional coupler suitable for use as a 6-port reflectometer for impedance measurements has been introduced by the authors in a previous paper. In the paper, the effect of dispersion, extra coupling beyond the uniformly coupled region and finite strip thickness on the coupler performance are discussed. The practical performance of an experimental coupler is comp... View full abstract»

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  • Impedance measurement using a 6-port directional coupler

    Publication Year: 1980, Page(s):92 - 98
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (724 KB)

    The development of a 6-port directional coupler is briefly described. Its application to a new technique of impedance measurement in which the magnitude and phase of the associated reflection coefficient are determined in terms of power measurements is shown. In contrast to a wellknown commercially-available network analyser the technique obviates the need for a complex heterodyne system. It is al... View full abstract»

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  • Applications of time-domain methods to microwave measurements

    Publication Year: 1980
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (894 KB)

    Microwave applications of a computer-controlled time-domain measurement system are presented Examples of actual measurements are given showing the acquired time-domain waveforms and their corresponding Fourier transforms. Measurement results are presented for (a) impulse-generator spectrum-amplitude calibration, (b) transmission-line impulse response, (c) picosecond-domain photoconductor response,... View full abstract»

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  • Book review: Atomic Gas Laser Transition Data

    Publication Year: 1980
    IEEE is not the copyright holder of this material | PDF file iconPDF (87 KB)
    Freely Available from IEEE
  • Low-cost computer-based time-domain microwave network analyser

    Publication Year: 1980, Page(s):107 - 111
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (534 KB)

    An inexpensive time-domain automatic network analyser (t.d.a.n.a.), with a frequency bandwidth extending up to 10GHz, is described. This analyser is valuable for performing amplitude and phase measurements on broad-band systems with an accuracy of a few degrees in phase and a dynamic range of 35dB or better. Measurements are performed in the time domain with the aid of a sampling oscilloscope and ... View full abstract»

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  • Phase-lock techniques for synthesis of microwave frequencies

    Publication Year: 1980, Page(s):112 - 115
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (364 KB)

    There are many techniques for synthesising microwave frequencies, including up-converting by multiplication, sampling, down-converting and comparing to a low-frequency reference. The paper deals with the pros and cons of these systems in detail. View full abstract»

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  • Erratum: Measurement of thickness-shear-stress distribution of the oscillating planoconvex AT-cut quartz-crystal resonator

    Publication Year: 1980
    IEEE is not the copyright holder of this material | PDF file iconPDF (134 KB)
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