By Topic

Radio and Electronic Engineer

Issue 3 • Date March 1966

Filter Results

Displaying Results 1 - 7 of 7
  • What does R & D cost?

    Publication Year: 1966, Page(s):129 - 130
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (133 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Wideband coaxial variable attenuators using p-i-n diodes

    Publication Year: 1966, Page(s):131 - 144
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1404 KB)

    Using a conventional equivalent circuit for a p-i-n diode, a computer program has been written which permits the compilation of data for use in designing a coaxial wide band variable attenuator. Procedures are outlined leading to design of voltage controlled attenuators whose performance over an octave within 1 to 10 Gc/s compares very favourably with the best commercially available passive attenu... View full abstract»

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

    Publication Year: 1966, Page(s):145 - 155
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1800 KB)

    If the application of semiconductors is to be extended to microwave frequencies, the limitations due to electrode capacitance and transit time must be overcome. To a certain extent this can be done by reducing junction size and using majority carriers where possible. However a muchmore sophisticated way of overcoming these difficulties is to try to realize in semiconductors the type of continuous ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Measurement of phase errors in the pilot-tone system for stereophonic broadcasting

    Publication Year: 1966, Page(s):157 - 160
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (528 KB)

    In the pilot-tone system for stereophonic broadcasting, any small phase error of the pilot signal may be deduced from a waveform display of the multiplex signal, when using an appropriate modulating signal. An expression is derived for the error in terms of characteristics of the display, and a simple approximation is also given. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An ultrasonic to electronic image converter tube for operation at 1.20 Mc/s

    Publication Year: 1966, Page(s):161 - 170
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1867 KB)

    From 1949 to 1954 a programme of work was undertaken into the design of a cathode-ray image converter tube for transforming a plane section through a continuous-wave ultrasonic field to a television picture. Eleven different types of high-vacuum sealed-off experimental tubes were investigated. The final tube had a resonant quartz front-plate 5.7 cm diameter and operated at 1.20 Mc/s with a thresho... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Seismic data acquisition and processing equipment for Edinburgh Royal Observatory

    Publication Year: 1966, Page(s):171 - 180
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1252 KB)

    The paper deals with two main subjects: a set of portable recorders for field work, and a data-processing centre for collecting and analysing seismic recordings. The portable field recorders use frequency modulated recording on magnetic tape to handle the wide range of frequencies and amplitudes involved in seismic signals. Advantages and problems of mobile array stations are outlined, and the sys... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The performance of backward diodes as mixers and detectors at microwave frequencies

    Publication Year: 1966, Page(s):181 - 191
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1344 KB)

    The physical properties of a backward diode, together with the parameters of a microwave mixer and low-level detector are briefly reviewed, indicating the choice of a bonded-contact structure and n-type germanium. The microwave performance of such a diode is discussed with particular emphasis on optimizing the diode for low-level detector and Doppler mixer applications. Results of r.f. performance... View full abstract»

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