Title:
BACK-FED TRAVELING WAVE ANTENNA ARRAY, RADAR, AND MOVABLE PLATFORM
Document Type and Number:
WIPO Patent Application WO/2020/258214
Kind Code:
A1
Abstract:
The present application provides a back-fed traveling wave antenna array, a radar, and a movable platform. The back-fed traveling wave antenna array comprises: a first dielectric substrate, a feed unit being provided on the surface of the first dielectric substrate; a first ground layer, the first ground layer being provided with a first gap; an intermediate dielectric substrate; a second ground layer, the second ground layer being provided with a second gap; a second dielectric substrate, the side of the second dielectric substrate facing away from the second ground layer being provided with a radiation unit; a plurality of first metal vias, the plurality of first metal vias penetrating the first dielectric substrate, the first ground layer, the intermediate dielectric substrate, the second ground layer, and the second dielectric substrate, and the plurality of first metal vias enclose the first gap and the second gap, wherein the first gap and the second gap are used for coupling the energy of the feed unit to the middle of the radiation unit. The back-fed traveling wave antenna array provided in the present application has a wide working bandwidth, and satisfies the requirements of good gain flatness and stable beam pointing within broadband.
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Inventors:
TANG ZHE (CN)
TANG YIJUN (CN)
CAI MING (CN)
TANG YIJUN (CN)
CAI MING (CN)
Application Number:
PCT/CN2019/093557
Publication Date:
December 30, 2020
Filing Date:
June 28, 2019
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H01Q11/02; H01Q21/00
Foreign References:
| CN104638360A | 2015-05-20 | |||
| CN108987903A | 2018-12-11 | |||
| CN208208989U | 2018-12-07 | |||
| CN108987911A | 2018-12-11 | |||
| CN206388850U | 2017-08-08 | |||
| KR20040013387A | 2004-02-14 |
Other References:
KRZYSZTOF WINCZA ET AL.: "Microstrip Antenna Arrays Fed by a Series-Parallel Slot-Coupled Feeding Network", IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, vol. 10, 8 September 2011 (2011-09-08), XP011361168, DOI: 20200311131524Y
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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