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Title:
CIRCULARLY POLARIZED POSITIONING ANTENNA, AND WEARABLE APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/238216
Kind Code:
A1
Abstract:
The present application discloses a circularly polarized positioning antenna and a wearable apparatus. The circularly polarized antenna comprises: a feed branch (11) having a feed portion (111) and a first feed arm (112) and a second feed arm (113) that have an angle therebetween; a first radiation arm (12) coupled to the first feed arm (112), wherein the first radiation arm (12) is bent and provided in a first clearance region (10) extending in an arrangement direction of the first feed arm (112), and the first clearance region (10) is located at one side of the first feed arm (112); and a second radiation arm (13) coupled to the second feed arm (113), wherein the second radiation arm (13) is bent and provided in a second clearance region (20) extending in an arrangement direction of the second feed arm (113). Electrical signals on the first radiation arm (12) and the second radiation arm (13) have the same amplitude and a phase difference of 90°. The invention realizes circularly polarized radiation to reduce multi-path interference, thereby effectively improving positioning accuracy of positioning antennas of wearable apparatuses. The radiation arms are bent and provided in the clearance regions to reduce the overall volume of antennas, thereby facilitating compactness, and lowering implementation difficulties for wearable products.

Inventors:
JIANG QINGHUA (CN)
MEI BO (CN)
Application Number:
PCT/CN2020/142271
Publication Date:
December 02, 2021
Filing Date:
December 31, 2020
Export Citation:
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Assignee:
GUANGDONG GENIUS TECH CO LTD (CN)
International Classes:
H01Q9/04; H01Q9/18; H01Q21/24
Foreign References:
CN111129762A2020-05-08
CN104659471A2015-05-27
CN106329099A2017-01-11
CN109802226A2019-05-24
CN108172984A2018-06-15
US20200162947A12020-05-21
US6486848B12002-11-26
CN111490352A2020-08-04
CN211743403U2020-10-23
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF:
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