Tunable DBR resonators using KTN ferroelectric thin-films

Author

Laur, Vincent ; Moussavou, Arnaud ; Tanne, Gerard ; Laurent, Paul ; Bouquet, Valerie ; Deputier, Stephanie ; Guilloux-Viry, Maryline ; Huret, Fabrice

Author_Institution

LEST -UBO/ENSTBr, Brest

fYear

2007

fDate

3-8 June 2007

Firstpage

2059

Lastpage

2062

Abstract

Tunable dual behavior resonators were realized on using KTN ferroelectric thin-films. Their measurements demonstrated an agility of more than 21% in the 6.2-7.6 GHz frequency range under an applied field of 80 kV/cm. At the same time, insertion losses at the center frequency decreased from 3.27 to 2.06 dB; reflection losses were better than 11.5 dB at the same frequency. This study evidenced the potential of the DBR structure for tuning applications as well as the high tuning factor of KTN thin-films at microwave frequencies.

Keywords

coplanar waveguides; dielectric resonators; ferroelectric thin films; microwave devices; potassium compounds; resonators; tantalum compounds; tuning; KTN ferroelectric thin-films; KTaO₃NbO₃; coplanar waveguides; ferroelectric devices; frequency 6.2 GHz to 7.6 GHz; insertion losses; microwave measurements; reflection losses; tunable DBR resonators; tunable dual behavior resonators; Circuit optimization; Dielectric losses; Distributed Bragg reflectors; Ferroelectric materials; Microwave filters; Microwave frequencies; Permittivity; Thin films; Tunable circuits and devices; Tuning; Coplanar waveguides; ferroelectric devices; microwave measurements; resonators; tunable filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380256

Filename

4264273