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Microwave dielectric properties of MO–La2O3–TiO2 (M = Ca, Sr, Ba) ceramics
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jawahar, Isuhak Naseemabeevi Santha, Narayana Iyer Sebastian, Mailadil Thomas Mohanan, Pezholil |
| Copyright Year | 2002 |
| Abstract | Single-phase polycrystalline ceramics in the MO-La 2 O 3 -TiO 2 (M = Ca, Sr, Ba) system, such as cation-deficient hexagonal perovskites CaLa 4 Ti 4 O 1 5 , SrLa 4 Ti 4 O 1 5 , BaLa 4 Ti 4 O 1 5 , and Ca 2 La 4 Ti 5 O 1 8 and the orthorhombic phases CaLa 4 Ti 5 O 1 7 and CaLa 8 Ti 9 O 3 1 , were prepared through the solid-state ceramic route. The phases and structure of the ceramics were analyzed through x-ray diffraction and scanning electron microscopy. The microwave dielectric properties of the ceramics were studied using a network analyzer. The investigated ceramics show high ∈ r in the range 42 to 54, high quality factors with Q xf in the range 16,222 to 50,215 GHz, and low τ f in the range -25 to +6 ppm/°C. These high dielectric constant materials with high Q xf up to 50,215 GHz are suitable for applications where narrow bandwidth and extremely low insertion loss is necessary, especially at frequencies around 1.9 GHz. |
| Starting Page | 3084 |
| Ending Page | 3089 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1557/JMR.2002.0446 |
| Volume Number | 17 |
| Alternate Webpage(s) | https://dyuthi.cusat.ac.in/xmlui/bitstream/handle/purl/954/JMR02b.pdf?sequence=1 |
| Alternate Webpage(s) | https://doi.org/10.1557/JMR.2002.0446 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
