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:
Oct. 16, 2018
Filed:
Sep. 09, 2013
Alcatel Lucent, Boulogne Billancourt, FR;
Jean-Pierre Harel, Lannion, FR;
Alcatel Lucent, Boulogne Billancourt, FR;
Abstract
A feed system for controlling the variable electrical tilt in the vertical plane of arrayed radiating elements of a multiband antenna, comprising a Butler matrix with N inputs and N outputs comprising hybrid couplers, each input receiving a radio signal and each output transmitting the signal to at least one radiating element. At least one output of the Butler matrix is connected to a module comprising (i) a first stage of diplexers that separates the signal into different frequency bands, (ii) a second stage of fixed delay lines that applies a given electrical delay to the signal in each frequency band, (iii) a third stage of variable phase shifters that introduce an adjusted phase shift of the signal into each frequency band, and (iv) a fourth stage of diplexers that combines the signals into the different frequency bands in order to transmit them to at least one radiating element.