Title :
Barium Strontium Titanate varactors with high 1 dB compression points
Author :
Khalid, M.F.A. ; Holland, Anthony S. ; Ghorbani, Kamran
Author_Institution :
Sch. of Electr. & Comput. Eng., RMIT Univ., Melbourne, VIC, Australia
Abstract :
In this paper, results are presented for a Barium Strontium Titanate (BST) interdigital capacitor (IDC) which is designed and simulated to analyze the effect of variations in its geometry on the shape of the nonlinear capacitance - voltage (C-V) curve. From this analysis, the narrow, broad and intermediate C-V curves are determined. The broad curve could withstand input power of up to 41 dBm compared to 32 dBm and 29 dBm for the intermediate and narrow curves respectively. The tunabilities of the broad, itermediate, and narrow curves are 28%, 54%, and 73% respectively.
Keywords :
barium compounds; capacitors; strontium compounds; varactors; BST IDC; BaSrTiO4; barium strontium titanate interdigital capacitor; barium strontium titanate varactors; intermediate C-V curves; narrow curves; nonlinear C-V curves; nonlinear capacitance-voltage curve; Capacitance-voltage characteristics; Fingers; Geometry; Microwave circuits; Varactors; 1 dB compression point; BST varactors; thin films;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2012 7th European
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4673-2302-4
Electronic_ISBN :
978-2-87487-026-2
