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. 10, 2021
Filed:
May. 29, 2020
Huawei Technologies Co., Ltd., Guangdong, CN;
Marek Klemes, Kanata, CA;
Wen Tong, Ottawa, CA;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
The disclosed systems, structures, and methods are directed to an orbital angular momentum (OAM) receiver. The OAM receiver comprising at least three receiver antenna elements configured to receive radiated OAM-RF waves and generate antenna element output signals, a selection-antenna switch operative to receive and switch between a second receiver antenna element RXoutput and a third receiver antenna element output RX, a phase adjusting unit configured to adjust a phase of the output of the selection-antenna switch, a hybrid coupler configured to provide a proportional summation and difference of the two modulated signals, a switching unit configured to limit the coupler output signal to gating time-intervals during which fractional pseudo-Doppler frequency shifts occur, an orthogonal filter bank configured to generate a vector X(t) containing shifted low-frequency values associated with all of the K OAM modes, and an adaptive unit configured to facilitate separation of the OAM-RF waves.