High-temperature superconducting microwave devices: Fundamental issues in materials, physics, and engineering

Nathan Newman, W. Gregory Lyons

Research output: Contribution to journalReview articlepeer-review

172 Scopus citations


High-Tcsuperconductivity has generated a great deal of interest because of the challenges it presents in the fields of material science, condensed matter physics, and electrical engineering, and because of the potential applications which may result from these research efforts. Thin-film passive microwave components may become the first high-temperature superconducting (HTS) devices available for widespread use and commercialization. In this article, we review aspects of material science, physics, and engineering which directly impact high-Tcsuperconducting microwave devices and discuss issues which determine the performance of these devices. Methods of growing HTS thin films on large-area substrates, techniques for fabricating single-level HTS passive microwave components, and the relevant properties of high-Tcsuperconducting films are discussed, with a focus on thin films of the HTS material YBa2Cu3O7-δ. Several known mechanisms for microwave loss in both the superconductor and the dielectric substrate are presented. An overview of the general classes of superconducting passive microwave devices is given, and representative microwave devices which have been recently demonstrated are described in detail. Examples of a select few HTS active microwave components are also presented. Potential microwave applications are illustrated with comparisons to current technology.

Original languageEnglish (US)
Pages (from-to)119-160
Number of pages42
JournalJournal of Superconductivity
Issue number3
StatePublished - Jun 1 1993
Externally publishedYes


  • High-Tsuperconductivity
  • microwave device fabrication
  • microwave devices
  • surface resistance
  • thin films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)


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