Proceedings of the IEEE

Issue 7 • July 1971

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Displaying Results 1 - 25 of 27
  • [Front cover and table of contents]

    Publication Year: 1971, Page(s): c1
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    Freely Available from IEEE
  • Scanning the issue

    Publication Year: 1971, Page(s): 1043
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    Freely Available from IEEE
  • MOSFET memory circuits

    Publication Year: 1971, Page(s):1044 - 1058
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1574 KB)

    Metal-oxide-semiconductor first effect transistors (MOSFETs) are currently being used in a variety of memory applications. The requirements of memory usage and the characteristics of MOSFET devices and technology have led to a number of unique circuits for these applications. Organization and design considerations of memory systems using MOSFET devices are reviewed, and examples of specific circui... View full abstract»

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  • Distributed circuit design with transmisssion line elements

    Publication Year: 1971, Page(s):1059 - 1081
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2034 KB)

    A short length of transmission line can be chosen as a basic circuit element. Systems containing such elements can then be synthesized to do an amazing number of things. For example, commensurate lines, all multiples of a given length with differing characteristic impedances but with common propagation constant, can be interconnected to realize microwave filters, broad-band transformers, broad-ban... View full abstract»

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  • Single-spark ring transmitter

    Publication Year: 1971, Page(s):1082 - 1090
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (941 KB)

    A novel type of spark transmitter using a circular arrangement of capacitors alternating with spark gaps was described previously. (K. Landecker and K. S. Imrie, "A novel type of high power pulse transmitter," Aust. J. Phys., vol. 13, 1960, pp. 638-654.) The circular array was arranged such that it formed an oscillating magnetic dipole radiating RF power directly without the use of additional radi... View full abstract»

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  • Traffic control: From hand signals to computers'

    Publication Year: 1971, Page(s):1090 - 1099
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1126 KB)

    An overview is given of current applications of computers to traffic control. It includes a discussion of types of hardware and control strategies used in computerized systems developed for the control of urban street networks, as well as critical traffic links such as freeways and tunnels. Some remarks are made concerning possible future development in the use of computers for better management o... View full abstract»

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  • Thermal effects on switching of solids from an insulating to a conductive state

    Publication Year: 1971, Page(s):1099 - 1110
    Cited by:  Papers (36)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1259 KB)

    Electrical switching in solids has been observed in semiconductors and insulators and often controversy has appeared in the literature over the interpretation of such events. The major reason for the disagreements is the complexity of the switching events, involving a number of separate steps, with possibly different mechanisms at these steps. General properties which are common to most switching ... View full abstract»

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  • Fence guide for millimeter waves

    Publication Year: 1971, Page(s):1112 - 1113
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    A new waveguide, called "fence guide," for millimeter-wave circuitry on a dielectric substrate is described. The structure of the guide, the field distribution, and its characteristics are considered. View full abstract»

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  • Photosensitive blocking oscillator as an electronic simulated model of visual cell

    Publication Year: 1971, Page(s):1113 - 1114
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (169 KB)

    A simple electronic model which simulates the behavior of a visual cell is described. And the experiment of lateral inhibitory action of the cell models is shown. View full abstract»

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  • A micropower amplitude modulator

    Publication Year: 1971, Page(s):1114 - 1116
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (406 KB)

    Amplitude modulation using micropower transistors is often required for many applications in communications and instrumentation. A micropower current-gain block with its hFEstabilized over several ICdecades can be used with additional circuitry for this purpose. This letter describes such a modulator and its operating characteristics. View full abstract»

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  • Domain velocity in thin Gunn diodes

    Publication Year: 1971, Page(s):1116 - 1117
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (201 KB)

    An extension to the small-signal analysis of Kino and Robson indicates that domain velocity in thin Gunn diodes decreases as diode thickness decreases or as surface dielectric loading increases. View full abstract»

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  • The selectivity of null networks

    Publication Year: 1971, Page(s):1117 - 1119
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (225 KB)

    Various existing definitions for the selectivity of null networks are shown to be equivalent at the rejection frequency for general transfer functions with a pair of imaginary zeros. For the important second-order transfer function, the rates of cutoff at the half-power frequencies are also compatible. View full abstract»

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  • Simple algorithms for approximating the complex envelope in terms of real samples

    Publication Year: 1971, Page(s):1119 - 1121
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    The sampled complex envelope of a waveform may be approximated by using linear combinations of two or more successive real samples as complex samples. Simple algorithms are adequate in the case of bandwidths up to about 50 percent. In certain signal processing applications the use of such algorithms permits a reduction in costs by eliminating demodulators. View full abstract»

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  • GaAs Schottky diodes with near-ideal characteristics

    Publication Year: 1971, Page(s):1121 - 1122
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (178 KB)

    The I-V characteristics of some GaAs Schottky-barrier IMPATT diodes are found to be nearly ideal at operating temperatures (∼200°C). Fabricated on epitaxial n-type substrate with platinum contacts, the diodes use a truncated cone shape to avoid soft breakdown. The breakdown voltage and its temperature dependence are close to calculated values for one-sided abrupt junctions. View full abstract»

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  • Comments on "On helicon waves in a semiconductor plasma"

    Publication Year: 1971, Page(s):1122 - 1123
    Cited by:  Papers (1)
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  • Optical waveguide scattering and Griffith microcracks

    Publication Year: 1971, Page(s):1123 - 1124
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (365 KB)

    Experiments with low bulk loss liquid guides indicate that scattering losses can be attributed to the glass substrates. Order-of-magnitude computations point to trapped air as the source of scatter. View full abstract»

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  • On the design of a high-Q DLA network with zero real-part pole sensitivity

    Publication Year: 1971, Page(s):1124 - 1125
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (214 KB)

    The design of a recently reported high-Q distributed-lumped-active (DLA) network is discussed under the condition of zero real-part pole sensitivity, and complete information required for design is provided in graphical form. View full abstract»

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  • A parametric amplifier for 46 GHz

    Publication Year: 1971, Page(s):1125 - 1126
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (369 KB)

    A degenerate parametric amplifier for 46 GHz is described. It uses a Schottky barrier varactor packaged in a modified Sharpless wafer. The novel amplifier mount construction, which uses no tuning screws, yields predictable and reproducible results. In good agreement with theory, 14-mW pump power was required and a noise temperature of less than 400°K was measured. View full abstract»

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  • High-efficiency electrooptic Q-switching using slow risetime SCR-transformer drive

    Publication Year: 1971, Page(s):1126 - 1128
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (533 KB)

    A transformer-driven electrooptic Q-switching technique and associated circuit are described which eliminate the requirement to switch high voltages and which greatly simplify circuitry. It is shown that this technique provides remarkably good lasing efficiency even when the transformer risetime is twice as slow as the laser pulse buildup time. View full abstract»

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  • Low-noise operation of CW GaAs avalanche diode oscillators

    Publication Year: 1971, Page(s):1128 - 1130
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (358 KB)

    Previous pulsed low-noise measurements of avalanche oscillators have now been extended to CW devices having GaAs vapor-grown p-n junctions. The best AM noise-to-signal ratio observed was -140 dB, which is about 15 dB better than previously measured for GaAs avalanche diode oscillators. View full abstract»

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  • Comments on "A new look at yield of integrated circuits"

    Publication Year: 1971, Page(s): 1128
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    First Page of the Article
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  • Display devices based on low-voltage excitation of ZnO in a gas plasma

    Publication Year: 1971, Page(s):1130 - 1131
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (241 KB)

    Using a gas plasma as a source of free electrons, a brightness of 60 fL is obtained from an extended layer of ZnO phosphor with about 5 V applied to it. The phosphor efficiency, >10 lm/W, shows little change during 5000 h of operation. For display purposes devices have been constructed incorporating multiple phosphor-coated anodes whose potentials are controlled by low-voltage semiconductor cir... View full abstract»

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  • A new method of solution for radiation from a flanged waveguide

    Publication Year: 1971, Page(s):1131 - 1133
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (249 KB)

    A method of solution for radiation from a flanged waveguide is described. The problem is formulated using generalized mode matching technique [1], appropriate for geometries that include open regions. The resultant equation is solved using an extended version of the Modified Residue Calculus Technique originally developed for application to closed region problems. This technique has several advant... View full abstract»

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  • Impedance matching with a series transmission line section

    Publication Year: 1971, Page(s):1133 - 1134
    Cited by:  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (206 KB)

    A generalization of the transmission line quarter-wave impedance matching transformer is presented. The resultant series-section transformer can match complex as well as pure resistance loads to a transmission line, and the choice of the characteristic impedance of the matching section is not restricted to a single value. View full abstract»

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  • Theory of the maximum charge stored in the thin oxide MNOS memory transistor

    Publication Year: 1971, Page(s):1134 - 1136
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (247 KB)

    The maximum charge stored in the thin oxide metal-nitride-oxide-silicon (MNOS) memory transistor is calculated using a previously developed theory for the oxide current and experimental values for the nitride currents. The calculation is performed for oxide thicknesses of 15-50 Å and for six different nitride deposition temperatures. The theoretical results are shown to agree with recently pu... View full abstract»

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North Carolina State University