Properties of Tunable Filters with Ferroelectric Capacitors
| Autor: | I. B. Vendik, M. L. Khazov, V. V. Pleskachev, O. G. Vendik, M. A. Nikol'ski |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
business.industry Biasing Condensed Matter Physics Ferroelectric capacitor Electronic Optical and Magnetic Materials law.invention Capacitor Filter design Control and Systems Engineering Filter (video) law Hardware_INTEGRATEDCIRCUITS Materials Chemistry Ceramics and Composites Optoelectronics Insertion loss Commutation Electrical and Electronic Engineering business Active filter |
| Zdroj: | Integrated Ferroelectrics. 43:91-99 |
| ISSN: | 1607-8489 1058-4587 |
| DOI: | 10.1080/10584580212369 |
| Popis: | The range of a tunability of the filter with ferroelectric capacitor is determined by the commutation quality factor (CQF), which takes into account both the tunability of the capacitor under biasing voltage and the loss factor. For effective tuning, the CQF should be high enough (more than 1000). The main goal of the tunable filter synthesis is to provide non-degrading filter performance while tuning, and particularly to keep the same fractional bandwidth. Two different approaches to the tunable filter design are suggested and discussed: the image parameter method and insertion loss method. For both methods the filter structure is suggested and analyzed. |
| Databáze: | OpenAIRE |
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