University of California

Amit S Nagra

Robert Armstrong York

Andrea Borgioli

A phase shifter, such as for use in phased antenna arrays, comprising thin film BST capacitors periodically loading a transmission line. The BST thin films can be deposited using RF sputtering on a variety of substrates, and the capacitors can be of a parallel plate configuration or of an interdigitated configuration. An aspect of the invention additionally provides for the use of periodically distributed lumped-element inductors comprising the transmission line. A further aspect provides for programmatic determination of circuit design and configuration parameters based on the input of desired characteristics and materials for the phase shifter.

Phase shifters using transmission lines periodically loaded with barium strontium titanate (BST) capacitors

A microelectromechanical switch is disclosed comprising a conductor, a dielectric layer disposed on the conductor, a metal cap disposed on the dielectric layer and a bridge disposed proximate to the metal cap such that an electrical potential applied between the bridge and conductor causes the bridge to deform and contact the metal cap.

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Santa Barbara, CA, United States of America

Amit S Nagra