Highly tunable microwave stub resonator on ferroelectric KTa0.5Nb0.5O3 thin film

Quentin Simon (1, 2) , Yonathan Corredores (1) , Xavier Castel (1) , Ratiba Benzerga (3) , Ronan Sauleau (3) , Kouroch Mahdjoubi (3) , Arnaud Le Febvrier (2) , Stéphanie Députier (2) , Maryline Guilloux-Viry (2) , Lingyan Zhang (4) , Paul Laurent (4) , Gérard Tanné (5)

1 IETR - Institut d'Electronique et de Télécommunications de Rennes
2 ISCR - Institut des Sciences Chimiques de Rennes
3 IETR - Institut d'Électronique et des Technologies du numéRique
4 Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (UMR 3192)
5 Lab-STICC_UBO_MOM_DIM

A coplanar waveguide (CPW) stub resonator has been fabricated on a pulsed-laser deposited KTa(0.5)Nb(0.5)O(3) (KTN) thin film (600 nm-thick) onto a r-plane sapphire substrate. It was designed to operate at 10 GHz when the applied bias voltage is zero. We show experimentally that the resonance frequency is shifted by 44% under a 70 kV/cm DC applied electric field. In addition, the dielectric characteristics of the KTN film have been assessed through post-processed measurements of CPW 50-Omega transmission lines using the conformal mapping method.

Domaines: Chimie

Quentin Simon, Yonathan Corredores, Xavier Castel, Ratiba Benzerga, Ronan Sauleau, et al.. Highly tunable microwave stub resonator on ferroelectric KTa0.5Nb0.5O3 thin film. Applied Physics Letters, 2011, 99 (9), pp.092904 - 092904-3. ⟨10.1063/1.3626040⟩. ⟨hal-00618923⟩