Aly, Aly H.; El-Sharawy, Badawy; Beyer, Adalbert:

Multilayer tunable ferroelectric high-Q-filters

In: 12th MICROCOLL - Colloquium on Microwave Communications / Mediterranean Microwave Symposium (MMS 2007), May 14-16, Budapest, Hungary
Budapest, Hungary (2007), S. 31-34
Buchaufsatz / Kapitel / Fach: Elektrotechnik
This paper presents novel multilayer tuneable high Q-filters based on hairpin resonators including ferroelectric materials. This configuration allows the miniaturization of these filters to a size that makes it suitable for chip & package integration and narrow band applications. The multilayer structure allows for high Q by supporting a dielectric mode instead of a conductor transmission line mode. Different configurations of band reject filters are presented to illustrate the benefits of the present design.