University of California

Ge Security, Inc.

Richard Shelby

Christopher Williams Crowley

David J Smith

Sheldon Schultz

Oscar Mitchell

Richard Keith Ostrom

Norman Kroll

A method of operating a passenger screening kiosk system to perform at least one verify a passenger's identity, detect the presence of an explosive material, and detect the presence of a metallic material includes initiating a prompt to be issued by the passenger screening kiosk system to prompt the passenger to enter the passenger screening kiosk system, prompting the passenger to enter the passenger screening kiosk system, and determining whether the passenger is within the passenger screening kiosk system.

Passenger screening system and method

Composite media having simultaneous negative effective permittivity and permeability over a common band of frequencies. A composite media of the invention combines media, which are either themselves separately composite or continuous media, having a negative permittivity and a negative permeability over a common frequency band. Various forms of separate composite and continuous media may be relied upon in the invention. A preferred composite media includes a periodic array of conducting elements that can behave as an effective medium for electromagnetic scattering when the wavelength is much longer than both the element dimension and lattice spacing. The composite media has an effective permittivity &egr; (&ohgr;) and permeability &mgr; (&ohgr;) which are simultaneously negative over a common set of frequencies. Either one or both of the negative permeability and negative permittivity media used in the invention may be modulable via external or internal stimulus. Additionally, the medium or a portion thereof may contain other media that have medium electromagnetic parameters that can be modulated. The frequency position, bandwidth, and other properties of the left-handed propagation band can then be altered, for example, by an applied field or other stimulus. Another possibility is the use of a substrate which responds to external or internal stimulus.

Left handed composite media

Growing community of inventors

San Diego, CA, United States of America

Richard Shelby