Service Communautaire d'Information sur la Recherche et le Développement - CORDIS

FP5

TUF Résumé de rapport

Project ID: G1RD-CT-2002-00741
Financé au titre de: FP5-GROWTH
Pays: United Kingdom

Ferroelectric tuning of a dielectric resonator filter

A method for fast, electrical tuning of a dielectric resonator is proposed. The results verify its underlying principle. By using a ferroelectric element, fast resonant frequency tuning of a DR while maintaining a useful Q-factor is possible. This is because the coupling between the high Q DR and the low Q ferroelectric element (film) and can be sensitively balanced by altering the distance between the ferroelectric and the DR. This is achieved simply by adjusting the spacer height. Further improvements in the device are possible by using higher quality BSTO films prepared by alternative techniques.

Contact

Neil McN. ALFORD FRENG., (Professor of physical electronics and thin film materials)
Tél.: +44-020-75946724
Fax: +44-020-75846757
E-mail