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:
Aug. 17, 2021
Filed:
Mar. 12, 2015
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Marzio Puleri, Pisa, IT;
Antonella Bogoni, Pisa, IT;
Antonio D'Errico, Pisa, IT;
Paolo Ghelfi, Pisa, IT;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A receiver () for a phased array antenna comprises a laser light source () arranged to provide an optical spectrum comprising a first spectral component having a first wavelength and a second spectral component having a second wavelength. The first wavelength is spaced from the second wavelength. A wavelength separator () is configured to separate the first spectral component from the second spectral component, such that the first spectral component is directed onto a first path (A) and the second spectral component is directed onto a second path (B). A first delay unit () is configured to add a controllable time delay to the first spectral component on the first path. A second delay unit () is configured to add the time delay to the second spectral component on the second path. A modulator () is configured to modulate the first spectral component on the first path with a received RF signal from the phased array antenna. A heterodyning device () is configured to heterodyne the resulting first and second spectral components.