Title :
Tunable BaSrTiO3 applications for the RF front end
Author_Institution :
Agile RF Inc., Santa Barbara, CA, USA
Abstract :
This article presents the design and performance of tunable components and circuits for mobile device antennas 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 on mobile devices demonstrate extended bandwidth coverage for LTE, cellular, and PCS bands while maintaining TRP and TIS, and in some cases improvement over fixed solutions.
Keywords :
Long Term Evolution; barium compounds; capacitors; mobile antennas; thin films; Agile barium strontium titanate thin film technology; BaSrTiO3; RF front end; capacitor array stacking technique; cellular band; mobile device antennas; mobile devices; nonlinear BST capacitance model; tunable applications; tunable components; Antennas; BST; LTE.; impedance matching; tunable antenna;
Conference_Titel :
Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-754-2
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2011.5972714
