Abstract: A system and method for decontamination of chemical and biological agents over terrain in an outdoor environment is provided that utilizes ultraviolet radiation to break up hydrogen peroxide into radical species that interact with chemical and biological agents to render them harmless. In a preferred embodiment, peroxide is dispersed in a contaminated area and the peroxide is then exposed to ultraviolet radiation that causes the peroxide to dissociate into radical species. The interaction of the radical species formed by the peroxide dissociation with the chemical and biological agents renders them useless.

Abstract: A radiation-protection device is provided that includes a substrate and a surface structure formed on the substrate. The surface structure has an arrangement and interacts with radiation and the substrate to at least (a) substantially transmit or attenuate radiation at a wavelength and an energy below a threshold energy, and (b) substantially reflect radiation at the wavelength and an energy above the threshold energy.

Abstract: A radiation-protection device is provided that includes a substrate and a surface structure formed on the substrate. The surface structure has an arrangement and interacts with radiation and the substrate to at least (a) substantially transmit or attenuate radiation at a wavelength and an energy below a threshold energy, and (b) substantially reflect radiation at the wavelength and an energy above the threshold energy.

Abstract: A radiation-protection device is provided that includes a substrate and a surface structure formed on the substrate. The surface structure has an arrangement and interacts with radiation and the substrate to at least (a) substantially transmit or attenuate radiation at a wavelength and an energy below a threshold energy, and (b) substantially reflect radiation at the wavelength and an energy above the threshold energy.

Abstract: A method of achieving electromagnetic cloaking of an object comprising the step of coating said object with a metal-dielectric composite material including a dielectric component, wherein the dielectric component is comprised of a material exhibiting anomalous dispersion in a wide wavelength range.

Abstract: A desalination apparatus is disclosed which uses a salt sponge unit to remove a majority of salt from water. A parallel plate capacitor can be connected after the salt sponge to remove remaining salt ions. The salt sponge is a nanoporous, high surface area carbon scaffold to which crown ethers are attached. A power supply is connected to the salt sponges for applying a bias voltage to regenerate the salt sponges. A chlorine treatment unit can be connected after the parallel plate capacitor. A method of purifying sea water using the apparatus also is disclosed.

Abstract: An embodiment of the present invention provides an electronically tunable dielectric material, comprising at least one electronically tunable dielectric phase; and at least one compound of low loss complex perovskites, wherein said low loss complex pervoskites comprise two B site cations.

Abstract: A radiation-protection device is provided that includes a substrate and a surface structure formed on the substrate. The surface structure has an arrangement and interacts with radiation and the substrate to at least (a) substantially transmit or attenuate radiation at a wavelength and an energy below a threshold energy, and (b) substantially reflect radiation at the wavelength and an energy above the threshold energy.

Abstract: An embodiment of the present invention provides an electronically tunable dielectric material, comprising at least one electronically tunable dielectric phase; and at least one compound of low loss complex perovskites, wherein said low loss complex pervoskites comprise two B site cations.

Abstract: An embodiment of the present invention provides an apparatus, comprising a plurality of sub-arrays and at least one beamformer driving the plurality of sub-arrays, the at least one beamformer employing at least one phase shifter.

Abstract: In the method for operating a plurality antenna having near-field (NF) zone mounted on a vehicle, wherein the improvement comprises the step of cloaking in the near-field (NF) zone of each of said plurality of antennas.

Abstract: In an embodiment of the present invention is provided a varactor comprising a substrate, a bottom electrode positioned on a surface of the substrate, a tunable dielectric material positioned adjacent to and extending over the bottom electrode forming a step and in contact with a top electrode, and an interconnect layer in contact with the bottom electrode, the tunable dielectric and the top electrode.

Abstract: In an embodiment of the present invention is provided a method of manufacturing a varactor, comprising providing a substrate; positioning a bottom electrode on a surface of the substrate; placing a tunable dielectric material adjacent to and extending over the bottom electrode forming a step and in contact with a top electrode; placing an interconnect layer in contact with the bottom electrode, the tunable dielectric and the top electrode.

Abstract: An embodiment of the present invention provides a method of modeling electrostrictive effects and acoustic resonances in a tunable capacitor, comprising adjusting empirically the characteristic impedances and complex propagation constants to account for actual process variations in manufacturing of the tunable capacitor; adjusting empirically the characteristic impedances and complex propagation constants to account for end-effects in the directions transversal to the wave direction; and modeling the electrostrictive effect by dividing a BST layer of the tunable capacitor into thin layers or slices with each slice's thickness representing a small fraction of an acoustic wavelength and injecting at each junction between slices, an acoustic current proportional to the electrical current through the voltage tunable capacitor.

Abstract: An embodiment of the present invention provides an apparatus, comprising a radio frequency switch capable of using tunable dielectric capacitors as the switching element for a plurality of cross connected ports. Further, the RF switching may be accomplished by creating an RF short at a tee within said apparatus by the combination of transmission lines and the impedance provided by the tunable dielectric capacitor.

Abstract: An embodiment of the present invention provides an electronically tunable dielectric material, comprising at least one electronically tunable dielectric phase and at least one compound of low loss complex perovskites. The at least one electronically tunable dielectric phase may be selected from the group consisting of barium strontium titanate, barium titanate, strontium titanate, barium calcium titanate, barium calcium zirconium titanate, lead titanate, lead zirconium titanate, lead lanthanum zirconium titanate, lead niobate, lead tantalate, potassium strontium niobate, sodium barium niobate/potassium phosphate, potassium niobate, lithium niobate, lithium tantalate, lanthanum tantalate, barium calcium zirconium titanate, sodium nitrate, and combinations thereof. Further, the barium strontium titanate may of the formula BaxSr1-xTiO3, where x is from about 0 to about 1, or more specifically, but not limited in this respect, may also be of the formula BaxSr1-xTiO3, where x may be from about 0.15 to about 0.

Abstract: In an embodiment of the present invention is provided a varactor comprising a substrate, a plurality of bottom electrodes positioned on a surface of the substrate separated to form a gap therein, a tunable dielectric material positioned on the surface of the substrate and within the gap, the tunable dielectric at least partially overlaying the plurality of electrodes, and a top electrode in contact with the tunable dielectric.

Abstract: An embodiment of the present invention provides a method of making an electronically tunable dielectric material comprising mixing particles of at least one electronically tunable dielectric phase and particles of at least one compound of low loss complex perovskites, and particles of optional one other family of materials; and sintering the material.

Abstract: An embodiment of the present invention provides an apparatus, comprising a plurality of sub-arrays and at least one beamformer driving the plurality of sub-arrays, the at least one beamformer employing at least one phase shifter.

Abstract: An embodiment of the present invention provides a phase shifter, comprising a substrate, resistive ink adjacent one surface of said substrate and separating a voltage tunable dielectric material from said surface of said substrate and a plurality of conductors adjacent said voltage tunable dielectric material separated so as to form a gap filled with resistive ink in said gap.