DIELECTRIC PROPERTIES OF (Sr0.8Pb0.2)TiO3-MgO COMPOSITES AT LOW AND MICROWAVE FREQUENCIES
| Autor: | Yoshitaka Somiya, José Antonio Eiras, Amar S. Bhalla, Ducinei Garcia, L. Eric Cross, José de los Santos Guerra, Steven Edward Perini, Michael T. Lanagan |
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| Rok vydání: | 2008 |
| Předmět: |
Waveguide (electromagnetism)
Materials science business.industry Relative permittivity Dielectric Condensed Matter Physics Electronic Optical and Magnetic Materials Control and Systems Engineering Materials Chemistry Ceramics and Composites Optoelectronics Electrical and Electronic Engineering Composite material business Microwave |
| Zdroj: | Integrated Ferroelectrics. 104:90-101 |
| ISSN: | 1607-8489 1058-4587 |
| DOI: | 10.1080/10584580802594733 |
| Popis: | (Sr0.8Pb0.2)TiO3-MgO (50:50 by weight) composites are fabricated and their dielectric properties are investigated at room temperature in the frequency range between 10 kHz and 26 GHz. Relative dielectric constant is ∼116. tan δ at 10 kHz is 0.0005 or less than 0.0005, but tan δ at higher frequencies increases to 0.006 at 4 GHz and 0.04 between 18 GHz and 26 GHz. The resonant methods show constant Q × f (Q: 1/tan δ, f: Frequency) ∼700 GHz in the frequency range of 2.5 GHz to 7 GHz, but the waveguide technique shows different values because of low accuracy in measuring tan δ. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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