Cal Corporation

Anthony Rowland Raab

An integrated multi-band and multi-polarization antenna array comprising: a plurality of first waveguides located in spaced parallel relationship, the waveguides being dimensioned so as to carry signals of a first wavelength, the waveguides containing slots in a first surface so as to radiate the signals carried by the first waveguides with horizontal polarization, a plurality of second waveguides located in spaced parallel relationship to each other and to the first waveguides, and bridging and abutting the first waveguides adjacent a second surface opposite the first surface, the second waveguides being dimensioned to carry signals of the first wavelength, the second waveguides containing slots in a surface parallel to the first surface so as to radiate signals carried by the second waveguides with vertical polarization, a third waveguide located in spaced parallel relationship to the first and second waveguides, dimensioned to carry signals of a second wavelength, and containing slots in a surface parallel to the first surface so as to radiate signals carried by the third waveguide with vertical polarization, the third waveguide being disposed between walls of the first waveguides and above a second waveguide at a location whereat electric field reflections from faces thereof of energy emitted from the second waveguide add in antiphase.

Dual-band, dual polarization radiating structure

A deployable antenna system comprised of a pair of independently flexible membranes carrying elements of the antenna system, apparatus fixed to corresponding extremity locations of the membranes for stretching the membranes taught and flat, spacers rigidly fixed to corresponding facing locations on the membranes, the locations being selected such that a line passing through each of the spacers is orthogonal to the surface of the membranes when the membranes are stretched, and at another angle to the surface when the membranes are either relaxed or one membrane is shifted laterally to the other.

Growing community of inventors

Kanata, Canada

Anthony Rowland Raab