Microwave properties and structure of La–Ti–Si–B–O glass-ceramics for applications in GHz electronics

Hubertus P. Braun; Arshad Mehmood; Martun Hovhannisyan; Huairuo Zhang; Damoon Sohrabi Baba Heidary; Clive Randall; Michael T. Lanagan; Rolf Jakoby; Ian M. Reaney; Martin Letz; Hans Joachim Elmers

doi:10.1016/j.jeurceramsoc.2016.11.048

Microwave properties and structure of La–Ti–Si–B–O glass-ceramics for applications in GHz electronics

Hubertus P. Braun, Arshad Mehmood, Martun Hovhannisyan, Huairuo Zhang, Damoon Sohrabi Baba Heidary, Clive Randall, Michael T. Lanagan, Rolf Jakoby, Ian M. Reaney, Martin Letz, Hans Joachim Elmers

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12 Scopus citations

Abstract

A dielectric bulk glass-ceramic of the La₂O₃–TiO₂–SiO₂–B₂O₃ system is developed which is able to fulfill the requirements for dielectric loading-based mobile communication technologies. It is shown that the given dielectric requirements can be fulfilled by glass-ceramic materials without being dependent on ceramic processing techniques. The material exhibited permittivity values of 20 < ɛ_r < 30, quality factor 2000 GHz < Qf < 10,000 GHz and a temperature coefficient of resonance frequency −100 < τ_f < +180 ppm/K. A zero τ_f material with a Qf value of 9500 GHz and ɛ_r = 21.4 could be achieved at a ceramming temperature T_cer = 870 °C. The material is aimed to provide an alternative to existing, commercially used sintered ceramic materials. Further focus is laid on the investigation of the dominant dielectric loss mechanisms in the GHz frequency range and how they are correlated with the microstructure.

Original language	English (US)
Pages (from-to)	2137-2142
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	37
Issue number	5
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2016.11.048
State	Published - May 1 2017

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2016.11.048

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Braun, H. P., Mehmood, A., Hovhannisyan, M., Zhang, H., Heidary, D. S. B., Randall, C., Lanagan, M. T., Jakoby, R., Reaney, I. M., Letz, M., & Elmers, H. J. (2017). Microwave properties and structure of La–Ti–Si–B–O glass-ceramics for applications in GHz electronics. Journal of the European Ceramic Society, 37(5), 2137-2142. https://doi.org/10.1016/j.jeurceramsoc.2016.11.048

@article{7c0e968012d04b0090ab8cef6014551e,

title = "Microwave properties and structure of La–Ti–Si–B–O glass-ceramics for applications in GHz electronics",

abstract = "A dielectric bulk glass-ceramic of the La2O3–TiO2–SiO2–B2O3 system is developed which is able to fulfill the requirements for dielectric loading-based mobile communication technologies. It is shown that the given dielectric requirements can be fulfilled by glass-ceramic materials without being dependent on ceramic processing techniques. The material exhibited permittivity values of 20 < ɛr < 30, quality factor 2000 GHz < Qf < 10,000 GHz and a temperature coefficient of resonance frequency −100 < τf < +180 ppm/K. A zero τf material with a Qf value of 9500 GHz and ɛr = 21.4 could be achieved at a ceramming temperature Tcer = 870 °C. The material is aimed to provide an alternative to existing, commercially used sintered ceramic materials. Further focus is laid on the investigation of the dominant dielectric loss mechanisms in the GHz frequency range and how they are correlated with the microstructure.",

author = "Braun, {Hubertus P.} and Arshad Mehmood and Martun Hovhannisyan and Huairuo Zhang and Heidary, {Damoon Sohrabi Baba} and Clive Randall and Lanagan, {Michael T.} and Rolf Jakoby and Reaney, {Ian M.} and Martin Letz and Elmers, {Hans Joachim}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2017",

month = may,

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doi = "10.1016/j.jeurceramsoc.2016.11.048",

language = "English (US)",

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Braun, HP, Mehmood, A, Hovhannisyan, M, Zhang, H, Heidary, DSB, Randall, C , Lanagan, MT, Jakoby, R, Reaney, IM, Letz, M & Elmers, HJ 2017, 'Microwave properties and structure of La–Ti–Si–B–O glass-ceramics for applications in GHz electronics', Journal of the European Ceramic Society, vol. 37, no. 5, pp. 2137-2142. https://doi.org/10.1016/j.jeurceramsoc.2016.11.048

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T1 - Microwave properties and structure of La–Ti–Si–B–O glass-ceramics for applications in GHz electronics

AU - Braun, Hubertus P.

AU - Mehmood, Arshad

AU - Hovhannisyan, Martun

AU - Zhang, Huairuo

AU - Heidary, Damoon Sohrabi Baba

AU - Randall, Clive

AU - Lanagan, Michael T.

AU - Jakoby, Rolf

AU - Reaney, Ian M.

AU - Letz, Martin

AU - Elmers, Hans Joachim

PY - 2017/5/1

Y1 - 2017/5/1

N2 - A dielectric bulk glass-ceramic of the La2O3–TiO2–SiO2–B2O3 system is developed which is able to fulfill the requirements for dielectric loading-based mobile communication technologies. It is shown that the given dielectric requirements can be fulfilled by glass-ceramic materials without being dependent on ceramic processing techniques. The material exhibited permittivity values of 20 < ɛr < 30, quality factor 2000 GHz < Qf < 10,000 GHz and a temperature coefficient of resonance frequency −100 < τf < +180 ppm/K. A zero τf material with a Qf value of 9500 GHz and ɛr = 21.4 could be achieved at a ceramming temperature Tcer = 870 °C. The material is aimed to provide an alternative to existing, commercially used sintered ceramic materials. Further focus is laid on the investigation of the dominant dielectric loss mechanisms in the GHz frequency range and how they are correlated with the microstructure.

AB - A dielectric bulk glass-ceramic of the La2O3–TiO2–SiO2–B2O3 system is developed which is able to fulfill the requirements for dielectric loading-based mobile communication technologies. It is shown that the given dielectric requirements can be fulfilled by glass-ceramic materials without being dependent on ceramic processing techniques. The material exhibited permittivity values of 20 < ɛr < 30, quality factor 2000 GHz < Qf < 10,000 GHz and a temperature coefficient of resonance frequency −100 < τf < +180 ppm/K. A zero τf material with a Qf value of 9500 GHz and ɛr = 21.4 could be achieved at a ceramming temperature Tcer = 870 °C. The material is aimed to provide an alternative to existing, commercially used sintered ceramic materials. Further focus is laid on the investigation of the dominant dielectric loss mechanisms in the GHz frequency range and how they are correlated with the microstructure.

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 5

ER -

Microwave properties and structure of La–Ti–Si–B–O glass-ceramics for applications in GHz electronics

Abstract

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