Title:
CIRCULARLY POLARIZED ANTENNA AND WIRELESS COMMUNICATION DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/177495
Kind Code:
A1
Abstract:
Provided is a circularly polarized antenna, wherein same utilizes balanced differential signal driving. A first transmission line and a second transmission line are driven by a positive signal; and a third transmission line and a fourth transmission line are driven by a negative signal. A phase difference is configured rationally, so that there is a positive-90-degree or negative-90-degree phase difference between the first transmission line and the second transmission line; and there is a positive-90-degree or negative-90-degree phase difference between the third transmission line and the fourth transmission line. When the antenna transmits a signal, the first transmission line and the third transmission line can form a vertically polarized wave by means of radiation at a radiating body under the drive of a balanced differential signal; and the second transmission line and the fourth transmission line can form a horizontally polarized wave by means of radiation at the radiating body under the drive of the balanced differential signal. Owing to the phase differences of the transmission lines, the vertically polarized wave and the horizontally polarized wave are orthogonal to each other, thereby synthesizing a circularly polarized wave, and thus realizing circularly polarized radiation of the antenna. The circularly polarized antenna is suitable for various wireless communication devices capable of performing receiving or transmitting, especially for a wearable electronic device, and improves the user experience.
Inventors:
HU LI (CN)
XU LIJUN (CN)
XU LIJUN (CN)
Application Number:
PCT/CN2016/081642
Publication Date:
October 19, 2017
Filing Date:
May 11, 2016
Export Citation:
Assignee:
SHANGHAI AMPHENOL AIRWAVE COMMUNICATION ELECTRONICS CO LTD (CN)
International Classes:
H01Q15/24; H01Q1/27
Foreign References:
| US20080174501A1 | 2008-07-24 | |||
| CN104377433A | 2015-02-25 | |||
| JP2015046798A | 2015-03-12 | |||
| JPS63139406A | 1988-06-11 |
Attorney, Agent or Firm:
SHANGHAI HANGSOME INTELLECTUAL PROPERTY LTD (CN)
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