Kirschner Medical Corporation

Avl Technologies, Inc.

James L Oliver

Ian J Timmins

James L Sketo

Alan Ellis

Bruce Barratt

Donald C O'Shea

Adam C Gropp

Bryan Keith Edenfield

An AESA for SATCOM includes a PCB; a plurality of ICs; an RF feed network for an array; a plurality of patch antennas; a SPI bus for controlling phase shifting of the ICs; phase shifters being operable for selectively introducing a phase shift internal to each of the plurality of ICs such that the radiation pattern resulting from the patch antennas connected to a single IC are steered; and wherein the plurality of ICs are operable to selectively provide either left hand circular polarization, right hand circular polarization, horizontal polarization or vertical polarization.

Active electronically steered array for satellite communications

An AESA for SATCOM includes a PCB; a plurality of ICs; an RF feed network for an array; a plurality of patch antennas; a SPI bus for controlling phase shifting of the ICs; phase shifters being operable for selectively introducing a phase shift internal to each of the plurality of ICs such that the radiation pattern resulting from the patch antennas connected to a single IC are steered; a RF power amplifier in each of the ICs, the RF power amplifier being in a common IC footprint with at least one of the phase shifters; the RF power amplifier being structured and disposed for providing amplification for the array, wherein the RF power amplifier compensates for the lossy nature of the internal layers of the PCB; and wherein the plurality of ICs to selectively provide either left hand circular polarization, right hand circular polarization, horizontal polarization or vertical polarization.

A lamp for providing uniform luminosity in an area to be illuminated, such as in an operating theatre and the like. The lamp comprises a light source, an infrared filter element, a planar prism field, having a substantial number of radial sectors containing a plurality of transverse, outwardly curved prisms, and a toroidal lens system which controls the divergence of the light emanating from the light source so as to render the light substantially columnate and to direct the light onto the planar prism field, a transparent member beneath the planar prism field to protect the planar prism field from dirt, foreign material and scratches, and a handle extending downwardly from the face of the lamp by which the lamp can be manipulated. The radial sectors are held together in the planar prism field by attachment to one another. As a result, the transparent member can be thin since it is not required to support the planar prism field. The transparent member, therefor, can be removed for cleaning or replacement without disassembly of the planar prism field. The lens of the toroidal lens system is a conical Fresnel lens.

Lamp system for operating theatres and the like

The present invention relates to a lamp for providing uniform luminosity in an area to be illuminated, such as in an operating theatre and the like, comprising generally (a) a light source, (b) a planar field, said planar field comprising a substantial number of radial sectors containing a plurality of transverse, outwardly curved prisms, and (c) a toroidal lens system which controls the divergence of the light emanating from the light source so as to render the light substantially columnate and direct the light onto the planar field. The present invention also includes structure whereby the radial sectors are held together in the planar field by attachment to one another, such as by tongue-and-groove means, and further includes (d) a transparent member located between the planar field and the area to be illuminated which protects the prism sectors from soil and injury.

Growing community of inventors

Asheville, NC, United States of America

James L Oliver