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Radio and Electronic Engineer

Issue 1 • January 1966

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Displaying Results 1 - 8 of 8
  • The challenge of 1966

    Publication Year: 1966, Page(s):3 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (128 KB)

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  • Environmental realism in flight simulators

    Publication Year: 1966
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2575 KB)

    In flight simulators great care is taken to display to the pilot under training, as accurately as possible, the instrument readings appropriate to his handling of the aircraft. The pilot cannot make full use of this information, however, unless it is presented in correct relationship with other data derived from his simulated environment. The paper traces the development of environmental simulatio... View full abstract»

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  • Increased area density in magnetic recording

    Publication Year: 1966, Page(s):17 - 21
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (721 KB)

    Reliable digital storage at linear densities as high as 20 000 khzs per mc as result e from a n investigation establishing means of providing optimum recording and reproducing resolution. High linear densities make greater lateral densities practical by reducing interference between tracks. High lateral densities have been demonstrated: 1000 tracks per inch with special head structures, and 4000 t... View full abstract»

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  • p-i-n diode modulators for the K and Q frequency bands

    Publication Year: 1966, Page(s):22 - 26
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (531 KB)

    An experimental investigation into extending the operation of p-i-n diode modulators from 18 Gc/s to 40 Gc/s is described. Wafers of stacked p-i-n diodes are considered but most success is achieved with arrays of unencapsulated post-mounted diodes. By reducing the dimensions of diodes of this type used at lower frequencies, broad-band modulators can be designed to operate at frequencies up to 40 G... View full abstract»

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  • Design of a 4 Gc/s nitrogen-cooled non-degenerate parametric amplifier

    Publication Year: 1966, Page(s):27 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (827 KB)

    The design of a 4 Gc/s nitrogen-cooled non-degenerate parametric amplifier suitable for installation at the focus of a dish aerial in a communication-satellite-system earth-station is described. Two singlediode amplifiers, each of 15 dB gain and 70 Mc/s bandwidth to the ¿3 dB points, are cascaded to provide a minimum gain of 30 dB and a ¿3 dB staggered tuned bandwidth of 60 Mc/s with 1 dB ripple... View full abstract»

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  • Prediction and engineering assessment in early design

    Publication Year: 1966, Page(s):33 - 46
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1565 KB)

    The paper discusses the steps which could be taken in the early design stages to predict, assess and then verify the reliability of the component parts of the system. Prediction of ¿mean time between failures¿ of electronic equipment is dealt with in particular. The A.G.R.E.E. type of testing carried out by the manufacturer to determine the reliability of his final product is described in some d... View full abstract»

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  • Transient analysis of a varactor bridge doubler

    Publication Year: 1966, Page(s):47 - 54
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (796 KB)

    A direct digital integration of circuit equations was used to study the transient behaviour of a varactor bridge doubler circuit. A suddenly-applied sine, wave was assumed for the fundamental drive. A piecewise-linear varactor characteristic was used. The calculations show that good efficiency and rapid transient response can be obtained for certain ranges of tuning and bias. Experimentally observ... View full abstract»

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  • A study of two-terminal current-controlled negative resistance devices with the aid of an analogue

    Publication Year: 1966, Page(s):55 - 63
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (971 KB)

    Some fundamental aspects of current- and voltage-controlled negative resistance devices are considered, in particular the relation of the physical mechanism involved to the equivalent circuit. Further, a unified stability criterion is presented which is applicable to both types of device. A versatile analogue of a current-controlled device is described which is compatible with a voltage-controlled... View full abstract»

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