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Title:
CIRCULARLY POLARIZED ANTENNA DEVICE AND MOBILE PLATFORM
Document Type and Number:
WIPO Patent Application WO/2021/196136
Kind Code:
A1
Abstract:
A circularly polarized antenna device (10) and a mobile platform (100). The circularly polarized antenna device (10) comprises a support assembly (11) and a radiation assembly (12). The radiation assembly (12) comprises four radiation units (120) arranged around the center of the support assembly (11). The electrical length of each radiation unit (120) is a quarter of a wavelength corresponding to the center frequency of the radiation assembly (12). Two adjacent radiation units (120) are disposed orthogonal to each other and spaced apart from each other. Each of at least two of the four radiation units (120) is correspondingly provided with a feed point (131).

Inventors:
LI DONG (CN)
YIN HANG (CN)
MA CHAO (CN)
Application Number:
PCT/CN2020/083037
Publication Date:
October 07, 2021
Filing Date:
April 02, 2020
Export Citation:
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Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H01Q21/24; H01Q21/26
Foreign References:
CN207651657U2018-07-24
CN105144483A2015-12-09
CN208873887U2019-05-17
CN201191651Y2009-02-04
CN103081225A2013-05-01
KR101562149B12015-10-22
Other References:
ZHANG, ZHIYA ET AL.: "Wideband Circularly Polarized Antenna With Gain Improvement", IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, vol. 12, 31 December 2013 (2013-12-31), XP011500274, DOI: 10.1109/LAWP.2013.2253591
Attorney, Agent or Firm:
BEIJING LISENG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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