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:
Dec. 05, 1989
Filed:
Sep. 14, 1988
Brian J Edward, Jamesville, NY (US);
Stephen Wanuga, Liverpool, NY (US);
General Electric Company, Syracuse, NY (US);
Abstract
The invention relates to the distribution of radio frequency signals using optical fibers between a centrally located radar transmitter/receiver and remotely located transmit/receive modules associated with the elements of an active phased array. The invention avoids the need for remotely located lasers, by using the optical carrier generated at the central location for both transmission, when it is modulated by the transmitter and supplied to each T/R module over an optical path; and for reception, when it is supplied to each T/R module unmodulated. An optical switch and an optical modulator in the T/R module permit the antenna return to be converted to an optical format for supply over a second optical path to the central receiver. The arrangement may be further simplified by selecting a simple optical device to perform both the optical switching and optical modulation function in each T/R module.