Ferroelectric films at high microwave power of ka-band frequency
| Autor: | T. B. Samoilova, V. Keis, O. Soldatenkov, L. C. Sengupta, Andrey Tumarkin, A. V. Ivanov, O. Buslov, V. Loginov, A. B. Kozyrev |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
business.industry Time constant Physics::Optics Astrophysics::Cosmology and Extragalactic Astrophysics Physics::Classical Physics Condensed Matter Physics Ferroelectricity Ferroelectric capacitor Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Planar Control and Systems Engineering Materials Chemistry Ceramics and Composites Optoelectronics Ka band Electrical and Electronic Engineering business Varicap Overheating (electricity) Microwave |
| Zdroj: | Integrated Ferroelectrics. 39:427-436 |
| ISSN: | 1607-8489 1058-4587 |
| Popis: | This paper presents the experimental and modeling results on microwave (∼37 GHz) investigations of SrTiO3 and (Ba,Sr)TiO3 ferroelectric films at high levels of microwave power. The ferroelectric film planar varactors were incorporated into the fin-line. The threshold microwave power leading to the appreciable variation in the microwave response of the tunable structure was determined. Thermal conditions of the varactors under test were analyzed. Thermal time constant and overheating of the ferroelectric films were estimated. The dependence of the varactor overheating on geometry was studied. Design optimization possibilities for the varactors in high microwave power applications are discussed. |
| Databáze: | OpenAIRE |
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