By Topic

Radio and Electronic Engineer

Issue 4 • Date October 1965

Filter Results

Displaying Results 1 - 6 of 6
  • Shortߝand to the point

    Publication Year: 1965
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (109 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.
  • Dielectric loaded waveguides-a review of theoretical solutions. Part 2: Propagation through dielectric loaded waveguides

    Publication Year: 1965, Page(s):195 - 205
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (844 KB)

    The paper presents an analytical survey of the propagation characteristics of microwaves through (i) dielectric loaded waveguides, such as parallel plane, rectangular, circularly cylindrical and coaxial guides filled inhomogeneously with one or two dielectrics; (ii) imperfect waveguides filled with imperfect dielectrics. The problem of the existence of backward waves in a circular cylindrical wave... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Limitations on directional patterns of phase-compensated circular arrays

    Publication Year: 1965, Page(s):206 - 222
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1848 KB)

    This paper studies the principal design parameters of phase compensated circular arrays with a view to the synthesis of diametricplane directional patterns having low side-lobes. After summarizing the general properties of such arrays it is shown that a maximum inter-element spacing exists, which if exceeded results in a rapid increase of sde-lobe level. In most cases this spacing is 0.45¿. The e... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characteristics of oscillation of a grounded-grid synchrocyclotron oscillator

    Publication Year: 1965, Page(s):223 - 232
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (862 KB)

    An analysis of a grounded-grid synchrocyclotron oscillator using a lumped equivalent circuit is presented. It is shown that for some circuit adjustments of the oscillator, oscillations may be excited at the dee resonant frequency, at the anode to dee coupling transmission line frequency, or simultaneously at both the frequencies. The excitation of simultaneous oscillations is explained by consider... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A parametric amplifier for the frequency range 400-800 Mc/s

    Publication Year: 1965, Page(s):233 - 239
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (774 KB)

    The paper considers the performance required from a parametric amplifier. Choice of varactor diode and pump frequency and the necessity to keep circuit losses to a minimum are discussed. A practical amplifier is described in detail including frequency tuning, variation of gain with temperature and power saturation. The expected noise figure was 1 dB and this was confirmed in practice. A method of ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Simultaneous long distance tropospheric propagation measurements at 560 Mc/s and 774 Mc/s over the north sea

    Publication Year: 1965, Page(s):241 - 255
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1676 KB)

    Simultaneous field strength measurements on u.h.f. transmissions at 560 Mc/s and 774 Mc/s were carried out over the North Sea, on transmission paths ranging from 123 miles (198 km) to 591 miles (950 km). The results show that with the same meteorological conditions the long-term received field strengths tend to be higher, although not to a significant extent, for the 774-Mc/s transmission than for... View full abstract»

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