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Radio and Electronic Engineer

Issue 1 • Date July 1967

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Displaying Results 1 - 9 of 9
  • Economics and the engineer

    Publication Year: 1967
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (118 KB)

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  • Amplitude limiting applied to a sensitive correlation detector

    Publication Year: 1967
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (969 KB)

    It is shown that the stability of a sensitive correlation detector can be improved by limiting the amplitudes of the voltages in either one or both input channels. The loss of output signal/noise ratio compared to an ideal multiplier-correlator is determined as a function of limiting level for both cases. The output signal/noise ratio of an unstable multiplier/correlator can be considerably less t... View full abstract»

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  • Space research at university college london

    Publication Year: 1967
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (163 KB)

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  • The radio and electronic component show, 1967

    Publication Year: 1967
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (158 KB)

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  • Mechanisms in gunn effect microwave oscillators

    Publication Year: 1967, Page(s):17 - 30
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1653 KB)

    Four microwave mechanisms found in Gunn diodes are discussed. Firstly, growing space-charge waves give a frequency dependent negative resistance which can be used to obtain amplification as well as to make oscillators. When any region or domain of high electric field is formed in a Gunn diode, three other microwave mechanisms are found: a current or voltage generator is created by the collapse of ... View full abstract»

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  • High-order multipliers without idlers

    Publication Year: 1967, Page(s):31 - 38
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (595 KB)

    This paper describes a theoretical and experimental investigation carried out in order to provide design information about highorder multipliers without idlers which utilize the approximate step-function voltage-capacitance relationship of step-recovery diodes. View full abstract»

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  • The practical design of interdigital and comb-line filters

    Publication Year: 1967, Page(s):39 - 52
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1398 KB)

    The design procedures for interdigital and comb-line filters are summarized and the theory of these filters extended to include various aspects of design and performance which are not covered in the literature. The basic design equations are modified to give unified sets of expressions relating the resonator capacitances directly to the filter specification, and the theory of these filters is exte... View full abstract»

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  • The direction of movement of F2 region perturbations

    Publication Year: 1967, Page(s):53 - 59
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (843 KB)

    A new method is described for measuring the direction of movement of F2 region perturbations from the changes of phase path due to travelling ionospheric perturbations recorded at three closely-spaced aerials. The results of the analysis using this method for 151 perturbations are presented. It is found that the direction of movement of perturbations with quasi-periods of about 15 minutes and maxi... View full abstract»

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  • The equivalent circuit of two-port antennae with an application to magic-T systems

    Publication Year: 1967, Page(s):60 - 64
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (453 KB)

    An equivalent circuit is presented for a two-port antenna immersed in the field of an external source. The circuit consists of admittances and current generators, and the value of the latter is particularly simple when the irradiating wave is a plane wave. The existence of a plane of symmetry also simplifies matters, particularly when the two output ports are connected to the series arms of a magi... View full abstract»

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