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:
Sep. 21, 1993
Filed:
Oct. 01, 1991
Stanley M Reich, Jericho, NY (US);
Grumman Aerospace Corporation, Bethpage, NY (US);
Abstract
A fiber optic transmitter/receiver module used for controlling multi-axis beam steering of each individual radiating element in a phased array antenna and which is an integral part of a reconfigurable fiber optic corporate feed concept. In the receive mode of operation an incoming signal is captured, amplified and converted into the light domain by means of optical heterodyning. The relative phase and amplitude of the signal would be controlled by optically adjusting the amplitude and phase of a local oscillator. The local oscillator is sent to each fiber optic transmitter/receiver module. In the transmit mode of operation a signal for transmission which is in the light domain is down converted into the electromagnetic domain using optical mixing techniques. Once again, the relative phase and amplitude of the transmission signal would be controlled by the local oscillator. The beam steering capability is accomplished by configuring the local oscillator for each element of the antenna with a specific amplitude and phase.