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. 31, 2024
Filed:
Jul. 22, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Lars Sundström, Lund, SE;
Henrik Sjöland, Lund, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
A beamforming apparatus () performs beamforming via a plurality of antenna elements () by using per-branch sign reversal circuits () that approximate the per-branch phase values associated with a particular beam direction or shape by selectively reversing or not reversing the polarities of the individual branch signals (). Eliminating continuous-valued or high-resolution phasing control from the branch circuits () that are fed into or from the respective antenna elements () simplifies the branch circuitry, thereby reducing the physical space needed for the branch circuits () and reducing loss and noise within the branch circuits (). Further, operating the plurality of antenna elements () as two or more groups () and controlling the differential phase between the groups () advantageously reduces the errors arising from the approximation of the per-branch phase values.