The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1999
Filed:
Aug. 16, 1996
Vladimir Manasson, Los Angeles, CA (US);
Lev S Sadovnik, Irvine, CA (US);
WaveBand Corporation, Torrance, CA (US);
Abstract
Systems and methods for guided wave antennas are described. Apparatus is disclosed comprising: a dielectric nonphotoconductive waveguide defining a principle axis; a grating carrier connected to the dielectric nonphotoconductive waveguide, the grating carrier i) including a photoconductive material and ii) defining a photoconductive axis that is substantially parallel to the principle axis; a spatial light modulator optically connected to the layer of photoconductive material; and a source of illumination optically connected to the spatial light modulator and the layer of photoconductive material. Light from the source of illumination passes through the spatial light modulator and induces a plasma grating in the grating carrier substantially along a direction defined by the photoconductive axis so as to evanescently couple and direct electromagnetic signals traveling in the dielectric nonphotoconductive waveguide, the electromagnetic signals traveling along a direction substantially parallel to the principle axis. The systems and methods provide advantages in that high performance is achieved with a compact package.