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:
Jan. 10, 2012
Filed:
Jul. 31, 2008
Thomas W. Karras, Berwyn, PA (US);
Anthony C. Kowalczyk, San Carlos, CA (US);
Thomas W. Karras, Berwyn, PA (US);
Anthony C. Kowalczyk, San Carlos, CA (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A receiver system comprises an antenna configured to receive an input RF signal, a high spur free dynamic range modulator configured to receive the input RF signal from the antenna and to convert the input RF signal to an optical signal, and a tunable filter configured to receive the optical signal and to output a filtered optical signal. The tunable filter includes at least one electro-optic resonator, at least one electrode configured to supply an electrical control signal to the electro-optic resonator, and a controller configured to adjust the electrical control signal to adjust a refractive index of the electro-optic resonator, whereby a resonant frequency of the electro-optic resonator is selectably adjusted. The receiver system further comprises a receiver configured to receive the filtered optical signal.