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Proceedings of the IEEE

Issue 10 • Date Oct. 2004

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Displaying Results 1 - 24 of 24
  • [Front cover]

    Publication Year: 2004, Page(s): c1
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  • IEEE Member Digital Library [advertisement]

    Publication Year: 2004, Page(s): c2
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  • Table of contents

    Publication Year: 2004, Page(s): 1509
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  • Proceedings of the IEEE publication information

    Publication Year: 2004, Page(s): 1510
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  • Scanning the issue - Special Issue on Applications of Superconductivity

    Publication Year: 2004, Page(s):1511 - 1516
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  • Superconductor integrated circuit fabrication technology

    Publication Year: 2004, Page(s):1517 - 1533
    Cited by:  Papers (23)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2272 KB) | HTML iconHTML

    Today's superconductor integrated circuit processes are capable of fabricating large digital logic chips with more than 10 K gates/cm2. Recent advances in process technology have come from a variety of industrial foundries and university research efforts. These advances in processing have reduced critical current spreads and increased circuit speed, density, and yield. On-chip clock spe... View full abstract»

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  • Superconducting quantum interference devices: State of the art and applications

    Publication Year: 2004, Page(s):1534 - 1548
    Cited by:  Papers (48)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1360 KB) | HTML iconHTML

    Superconducting quantum interference devices (SQUIDs) are sensitive detectors of magnetic flux. A SQUID consists of a superconducting loop interrupted by either one or two Josephson junctions for the RF or dc SQUID, respectively. Low transition temperature (Tc) SQUIDs are fabricated from thin films of niobium. Immersed in liquid helium at 4.2 K, their flux noise is typically 10... View full abstract»

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  • Superconducting digital electronics

    Publication Year: 2004, Page(s):1549 - 1563
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3520 KB) | HTML iconHTML

    Single-flux quantum logic (SFQ) circuits, in which a flux quantum is used as an information carrier, have the possibility for opening the door to a new digital system operated at over 100-GHz clock frequency at extremely low power dissipation. The SFQ logic system is a so-called pulse logic, which is completely different from the level logic for semiconductors like CMOS, so circuit design technolo... View full abstract»

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  • Superconductor analog-to-digital converters

    Publication Year: 2004, Page(s):1564 - 1584
    Cited by:  Papers (81)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3176 KB) | HTML iconHTML

    Ultrafast switching speed, low power, natural quantization of magnetic flux, quantum accuracy, and low noise of cryogenic superconductor circuits enable fast and accurate data conversion between the analog and digital domains. Based on rapid single-flux quantum (RSFQ) logic, these integrated circuits are capable of achieving performance levels unattainable by any other technology. Two major classe... View full abstract»

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  • Superconducting microwave filter systems for cellular telephone base stations

    Publication Year: 2004, Page(s):1585 - 1596
    Cited by:  Papers (39)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB) | HTML iconHTML

    In the second decade following the discovery of high-temperature superconductivity (HTS), wireless communications has emerged as the earliest large commercial market. The enormous growth of the wireless industry coupled with its increasing technology demands has created a significant opportunity for HTS technology in wireless base stations. These systems combine high-performance HTS RF filters wit... View full abstract»

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  • Superconducting detectors and mixers for millimeter and submillimeter astrophysics

    Publication Year: 2004, Page(s):1597 - 1616
    Cited by:  Papers (101)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2944 KB) | HTML iconHTML

    Superconducting detectors will play an increasingly significant role in astrophysics, especially at millimeter through far-IR wavelengths, where the scientific opportunities include key problems in astronomy and cosmology. Superconducting detectors offer many benefits: outstanding sensitivity, lithographic fabrication, and large array sizes, especially through the recent development of multiplexin... View full abstract»

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  • Application of the Josephson effect to voltage metrology

    Publication Year: 2004, Page(s):1617 - 1629
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1336 KB) | HTML iconHTML

    The unique ability of a Josephson junction to control the flow of magnetic flux quanta leads to a perfect relationship between frequency and voltage. Over the last 30 years, metrology laboratories have used this effect to greatly improve the accuracy of dc voltage standards. More recent research is focused on combining the ideas of digital signal processing with quantum voltage pulses to achieve s... View full abstract»

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  • Quantum computing with superconductors

    Publication Year: 2004, Page(s):1630 - 1638
    Cited by:  Papers (13)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    Superconductive technology is one of the most promising approaches to quantum computing because it offers devices with little dissipation, ultrasensitive magnetometers, and electrometers for state readout, large-scale-integration, and a family of classical electronics that could be used for quantum bit (qubit) control. The challenges this technology faces, however, are substantial: for example, co... View full abstract»

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  • Superconducting materials for large scale applications

    Publication Year: 2004, Page(s):1639 - 1654
    Cited by:  Papers (61)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1448 KB) | HTML iconHTML

    Since the 1960s, Nb-Ti (superconducting transition temperature Tc=9 K) and Nb3Sn (Tc=18 K) have been the materials of choice for virtually all superconducting magnets. However, the prospects for the future changed dramatically in 1987 with the discovery of layered cuprate superconductors with Tc values that now extend up to about 135 K. Fabrication of us... View full abstract»

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  • Electric power applications of superconductivity

    Publication Year: 2004, Page(s):1655 - 1674
    Cited by:  Papers (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2561 KB) | HTML iconHTML

    The development of superconducting systems for electric power is driven by the promise of improved efficiency, smaller size, and reduced weight as compared to existing technologies and by the possibility of new applications. Superconducting power components can also contribute to improved power quality and increased system reliability. This paper addresses historical developments and technology st... View full abstract»

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  • Superconducting magnets and their applications

    Publication Year: 2004, Page(s):1675 - 1687
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5200 KB) | HTML iconHTML

    Since the discovery of superconductivity almost a century ago, there has been a steady increase in the variety of superconducting magnet applications. Progress in superconducting magnet technology has resulted in applications in areas of basic science, medicine, separation, and levitation. Performance improvements in a variety of materials, from low-temperature to high-temperature superconductors,... View full abstract»

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  • Development status of rotating machines employing superconducting field windings

    Publication Year: 2004, Page(s):1688 - 1704
    Cited by:  Papers (81)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5832 KB) | HTML iconHTML

    Superconducting rotating machines have looked promising since multifilamentary niobium-titanium (NbTi) superconductors became available in the mid-1960s. Both dc homopolar and ac synchronous machines were successfully tested from the 1970s to the 1990s. Three different 70-MW generators were recently demonstrated by the SuperGM project in Japan. However, economic considerations with respect to comp... View full abstract»

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  • Applications of bulk high-temperature Superconductors

    Publication Year: 2004, Page(s):1705 - 1718
    Cited by:  Papers (50)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2080 KB) | HTML iconHTML

    Bulk high-temperature superconductors (HTSs) enable the opportunity to develop several unique applications in electrical power that are not feasible with superconducting or normal wires. The large current carrying capacity and low thermal conductivity of the HTSs allows relatively short lengths to carry large currents to low-temperature devices without introducing heat to the device. Such current ... View full abstract»

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  • Refrigeration for superconductors

    Publication Year: 2004, Page(s):1719 - 1734
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3616 KB) | HTML iconHTML

    Temperatures in the range of 0.05 to 80 K are required for most applications of superconductors. Refrigeration powers range from fractions of a watt for many electronic applications to kilowatts for some large magnet and power applications. This paper reviews the various types of refrigeration methods currently available to meet the needs of various applications of superconductors. The methods cov... View full abstract»

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  • Electrical engineering Hall of fame: William Stanley

    Publication Year: 2004, Page(s):1735 - 1737
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    In 1912, the American Institute of Electrical Engineers (AIEE) selected William Stanley as the fourth recipient of its Edison Medal. He was cited for his contributions to the "development of alternating current systems and apparatus." He had designed and installed the first successful system of alternating current distribution using transformers in the United States during the 1880s. His improveme... View full abstract»

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  • Future Special Issues/Special Sections of the IEEE Proceedings

    Publication Year: 2004, Page(s):1738 - 1739
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  • Have you visited lately? www.ieee.org [advertisement]

    Publication Year: 2004, Page(s): 1740
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  • Celebrating the vitality of technology the Proceedings of the IEEE [advertisement]

    Publication Year: 2004, Page(s): c3
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  • Proceedings of the IEEE check out our November issue

    Publication Year: 2004, Page(s): c4
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The most highly-cited general interest journal in electrical engineering and computer science, the Proceedings is the best way to stay informed on an exemplary range of topics.

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Meet Our Editors

Editor-in-Chief
H. Joel Trussell
North Carolina State University