Other

Physical Domains, LLC

Composite Optics, Incorporated

Science and Applied Technology, Inc.

Rodney F Sinclair

Elliott R Brown

William Carl Zimmer

Mark Eugene Bonebright

William F McNaul

Jon Duff Weatherington

John Wittmond

Tony Rerecich

Bill McNaul

Jon D Weatherington

Anthony S Rerecich

John F Wittmond

Mark E Bonebright

Embodiments provide radio-frequency systems that can automatically detect, focus-on, and track objects in the environment without the need for expensive electronic scanning and phase-shifting components. Some embodiments are directed to retrodirective systems including: (1) quiescently broadcast pseudorandom-modulated radiation, such as pseudorandom bit sequences, in the absence of a target, over a field-of-view comparable to the beam solid angle of a single element in the transmit array; (2) a receive antenna element or array, in a desired spatial relationship with respect to the transmit antenna array, that receives reflected pseudorandom radiation from a target; and (3) an electronic signal-processing and feedback channel between the receive and transmit arrays that carries out cross-correlation between the received radiation and the transmitted pseudorandom signals and computes complex correlation coefficients to form a re-transmitted beam. Some embodiments are useful for short-range applications involving small and fast moving targets.

Retrodirective transmit and receive radio frequency system based on pseudorandom modulated waveforms

A carrier structure apparatus for mounting conformal antenna elements to a non-planar mounting surface as part of an antenna array of an airborne vehicle or ground-based system also comprising a seeker section, fairing and guidance processing system. The carrier structure is a rigid and conductive apparatus that is made to conform to the geometric configuration of both the antenna element as well as the mounting surface. The conformal antenna is rigidly mounted to the carrier structure, which is in turn removably affixed to the non-planar mounting surface. With the carrier structure, each antenna element of the array may be individually tested and replaced prior to and after installation in array.

Antenna array apparatus with conformal mounting structure

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Thousand Oaks, CA, United States of America

Rodney F Sinclair