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. 08, 2020
Filed:
Sep. 23, 2016
Fujikura Ltd., Tokyo, JP;
Yuta Hasegawa, Sakura, JP;
Ning Guan, Sakura, JP;
FUJIKURA LTD., Tokyo, JP;
Abstract
Provided is a phased array antenna in which a delay time of a radio frequency signal supplied to each antenna element is not dependent on frequency. Each feeding circuit (Fi) of the phased array antenna () includes: a time delay element (TDi) configured to impart a time delay Δti to a sum signal V(t) which is obtained by adding an intermediate frequency signal V(t) and a local signal V(t); a demultiplexer (DPi) configured to demultiplex a resulting delayed sum signal V(t−Δti) so as to provide a delayed intermediate frequency signal V(t−Δti) and a delayed local signal V(t−Δti); and a transmission mixer (TMXi) configured to multiply the delayed intermediate frequency signal V(t−Δti) by the delayed local signal V(t−Δti) so as to provide a delayed radio frequency signal V(t−Δti), each feeding circuit Fi being configured to supply the delayed radio frequency signal V(t−Δti) to a corresponding antenna element (Ai).