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Ceramic materials for use in microwave electronics

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Abstract

A study is reported of the structure and electrical properties of BaLn2Ti4O12 compositions (BLT), where Ln=La, Nd, or Sm, with calcium, strontium, or lead substituted for barium, and bismuth for the lanthanide. The BLT compound is shown to be characterized by a broad isomorphicity region, at the edge of which form solid solutions with the highest dielectric permittivity reached thus far, up to about 170. A number of thermally stable ceramic materials with a high dielectric permittivity of 80 to 120, which permit construction of microwave dielectric resonators with Q factors of up to 600 for ɛ=120 and up to 3000 for ɛ=80 at f=4 GHz, have been developed based on BLT solid solutions.

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Authors and Affiliations

  1. GIRIKOND Research Institute, 194223, St. Petersburg, Russia

    E. A. Nenasheva & O. N. Trubitsyna

  2. A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021, St. Petersburg, Russia

    N. F. Kartenko & O. A. Usov

Authors
  1. E. A. Nenasheva
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  2. O. N. Trubitsyna
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  3. N. F. Kartenko
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  4. O. A. Usov
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Fiz. Tverd. Tela (St. Petersburg) 41, 882–884 (May 1999)

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Nenasheva, E.A., Trubitsyna, O.N., Kartenko, N.F. et al. Ceramic materials for use in microwave electronics. Phys. Solid State 41, 799–801 (1999). https://doi.org/10.1134/1.1130876

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