Tunable BST capacitor loss compensation using active circuit

Author

Ahmad, Mohd Ashraf ; Rolland, Nathalie ; Rolland, Paul-Alain

Author_Institution

CNRS, Lille

Volume

16

Issue

10

fYear

2006

Firstpage

549

Lastpage

551

Abstract

The compensation of the ohmic and the material dielectric losses in a barium strontium titanate (BST) capacitor using an active circuit is reported in this letter. The negative resistance (NR) circuit creates an effective conductance of -|G_n| which adds to the positive conductance of the passive BST-based tuned capacitor. As a result, the compensation of the losses is significantly improved in the hybrid circuit by more than 50%. To our knowledge, this is the first work in tunable BST capacitor loss compensation using a NR circuit ever reported

Keywords

electric admittance; negative resistance circuits; thin film capacitors; varactors; BST capacitor; BaSrTiO₃; NR circuit; active circuit; barium strontium titanate; capacitor loss compensation; dielectric losses; negative resistance circuits; tunable circuits; tunable devices; varactors; Active circuits; Barium; Binary search trees; Capacitors; Conducting materials; Dielectric losses; Dielectric materials; Strontium; Titanium compounds; Tunable circuits and devices; Barium strontium titanate (BST); compensation; losses; negative resistance (NR) circuits; tunable devices and circuits; tuning; varactors;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2006.882394

Filename

1704859