Title :
BaSrTiO3-based 30–88MHz tunable filter
Author :
Zhang, Kai ; Watson, Thomas ; Cardona, A. ; Fink, M.
Author_Institution :
Agile RF, Inc., Santa Barbara, CA, USA
Abstract :
This article presents the operation, design and performance of tunable filter bank based on Agile´s barium strontium titanate (BST) thin film technology. A novel capacitor array has been designed utilizing a nonlinear BST capacitance model and a capacitor array “stacking” technique. Measurements demonstrate the rejection of tunable filter of 30dB at ±27% band width, the return loss is 10dB over entire operating range, and the minimum third order intercept is greater than 40dBm with switching speeds 1ms.
Keywords :
barium compounds; filters; thin film capacitors; agile barium strontium titanate thin film technology; capacitor array; frequency 30 MHz to 88 MHz; stacking technique; tunable filter bank; Barium; Binary search trees; Capacitance; Capacitors; Filter bank; Loss measurement; Strontium; Titanium compounds; Transistors; Velocity measurement;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5514715
