Title:
SPIRAL ANTENNA AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/087391
Kind Code:
A1
Abstract:
Provided by the present application are a spiral antenna and a communication device. The spiral antenna comprises a first spiral arm, a second spiral arm, and a feeding port. The first spiral arm is spirally extended from the feeding port, the second spiral arm is arranged adjacent to the first spiral arm, and the extension direction of the second spiral arm is the same as that of the first spiral arm. The first spiral arm and the second spiral arm are electrically connected to the feeding port, and the electrical length of the second spiral arm is different from the electrical length of the first spiral arm. The antenna further comprises a third spiral arm, said third spiral arm being disposed at a side of the second spiral arm away from the first spiral arm, and the extension direction of the third spiral arm being the same as that of the second spiral arm. A first gap is provided between the third spiral arm and the second spiral arm, and a coupling is generated between the second spiral arm and the third spiral arm. By means of the configuration above, the present antenna may have a plurality of frequency points, and thus meet requirements for multi-system coverage.
Inventors:
YE LU (CN)
Application Number:
PCT/CN2018/113175
Publication Date:
May 07, 2020
Filing Date:
October 31, 2018
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H01Q11/08; H01Q5/28
Foreign References:
| CN106532233A | 2017-03-22 | |||
| CN206364176U | 2017-07-28 | |||
| US6421028B1 | 2002-07-16 | |||
| US6621458B1 | 2003-09-16 | |||
| FR2877148A1 | 2006-04-28 | |||
| US20110254755A1 | 2011-10-20 | |||
| CN103840268A | 2014-06-04 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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