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. 20, 2001
Filed:
Mar. 02, 1998
Derrick J Page, Crownsville, MD (US);
Other;
Abstract
An array antenna is steered by moving two sets of optical fibers of different optical lengths between a number of light signal sources and an array antenna. By changing the lengths of the optical paths of the different light signal sources, the wave front can be steered. The light signal traverses five sections of optical delay lines with at least two selectable optical lengths. One set of selectable optical lengths provides coarse adjustment of steering, and a second set of selectable optical lengths provides fine adjustment of steering. The coarse adjustment is implemented by using a larger increment of selectable optical lengths between adjacent optical lengths than the increment for the fine adjustment. The antenna can serve both for a transmitter or a receiver.