Design and Development of a Tunable Ferroelectric Microwave Surface Mounted Device

Caroline Borderon (1) , S. Ginestar (1) , H.W. Gundel (1) , Abdullah Haskou (1) , K. Nadaud (2) , R. Renoud (1) , A. Sharaiha (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 GREMAN - UMR 7347 - GREMAN (matériaux, microélectronique, acoustique et nanotechnologies)

Based on a BaSrTiO ferroelectric thin film, a discrete tunable surface mounted device (SMD) capacitor has been developed for microwave frequency applications. The proposed SMD topology has the particular advantage of inherent decoupling between the RF signal and the dc biasing voltage, necessary to tune the ferroelectric permittivity. The design and technological development of the SMD component is presented, and the synthesis of the ferroelectric thin film is summarized. Material characterization shows convenient tunability, while low dielectric losses at 10 MHz. The integration of the SMD tunable capacitor into a Planar Inverted-F Antenna has been done in order to evaluate the agility and tunability performance of the antenna.

Mots clés: agility; article; microwave radiation; Ferroelectric devices; Ferroelectric applications; tunable antenna

Domaines: Sciences de l'ingénieur [physics]

Caroline Borderon, S. Ginestar, H.W. Gundel, Abdullah Haskou, K. Nadaud, et al.. Design and Development of a Tunable Ferroelectric Microwave Surface Mounted Device. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2020, 67 (9), pp.1733-1737. ⟨10.1109/TUFFC.2020.2986227⟩. ⟨hal-02936738⟩