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Radio and Electronic Engineer

Issue 1 • Date January 1968

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Displaying Results 1 - 11 of 11
  • The Presidential Address of Major-General Sir Leonard Atkinson, K.B.E., B.Sc, C.Eng., M.I.Mech.E., F.I.E.E., F.I.E.R.E.

    Publication Year: 1968, Page(s):3 - 9
    IEEE is not the copyright holder of this material | PDF file iconPDF (952 KB)
    Freely Available from IEEE
  • Institution notes

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (121 KB)
    Freely Available from IEEE
  • The electronics industry looking ahead with hindsight

    Publication Year: 1968, Page(s):11 - 16
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (823 KB)

    This opening address to the Conference points out that although progress in electronics since the end of World War II has been spectacular, its performance might have been even more impressive if a larger proportion of all the prophecies which were made of new devices, techniques, materials and functions had come to pass. Some of these hoped for developments are discussed and the reasons for their... View full abstract»

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  • The Ariel III satellite project

    Publication Year: 1968, Page(s):17 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1614 KB)

    Ariel III carries equipment from five scientific groups in the U.K. to measure ionospheric and high atmosphere properties. The project management structure is described. The spacecraft configuration evolved from two fundamental requirements¿spin stabilization and power supply by solar cells. The evolution of the structure and sub-systems, together with the operation of various mechanisms, is outl... View full abstract»

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  • A wideband array of non-uniformly spaced directional elements

    Publication Year: 1968, Page(s):33 - 39
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (724 KB)

    This paper discusses the design of an economical wideband array suitable for low-frequency radio astronomy applications. The array consists of 32 non-uniformly spaced, uniformly excited, log periodic antennae designed to operate over a 2 : 1 frequency band. At the highest operating frequency, the array has a beam-width of approximately 1° and side-lobes at least 16¿5 dB below the main beam level... View full abstract»

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  • Atomic Second Adopted as International Unit of Time

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (149 KB)
    Freely Available from IEEE
  • Thermal design and thermal testing of the UK-3 spacecraft

    Publication Year: 1968, Page(s):41 - 48
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1355 KB)

    The factors affecting the thermal design of a spacecraft are first discussed in general terms. Attention is then given to the thermal design problems on UK-3, and in particular to the difficulties associated with the gold plateand white paint which had to be used as the main thermal control surfaces. The distribution of the thermal control surfaces finally chosen is given together with the predict... View full abstract»

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  • Conversion between binary code and some binary-decimal codes

    Publication Year: 1968, Page(s):49 - 53
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (432 KB)

    Recent papers have described controlled shift register systems with which conversion can be made between pure binary code and 8421 binary-decimal code. This paper shows how this technique may be extended to other weighted binary-decimal codes, and puts forward a wider theory of which 8421 b.c.d. is a special case. View full abstract»

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  • Superdirective arrays

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (103 KB)
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  • The comparative strengths of polytetrafluoroethylene and polychlorotrifluoroethylene under nuclear radiation

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (108 KB)
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  • The University of Birmingham electron density and temperature experiments on the Ariel III satellite

    Publication Year: 1968, Page(s):55 - 63
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1294 KB)

    An experiment to measure ionospheric electron densities based upon the detection of permittivity changes in a parallel plate capacitor is discussed briefly, together with a method of determining electron temperatures based on the comparison of differential currents to identical probes. The application of these techniques to the Ariel III satellite and some preliminary results are also described. View full abstract»

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