Title:
HELICAL ANTENNA AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/087390
Kind Code:
A1
Abstract:
Provided are a helical antenna and a communication device. The helical antenna comprises a dielectric cylinder, a feed substrate and multiple radiation oscillators. The dielectric cylinder is carried on the feed substrate, and the multiple radiation oscillators are spirally provided at an outer surface of the dielectric cylinder. Each of the radiation oscillators comprises a first helical arm, a second helical arm and a parasitic arm, wherein the first helical arm and the second helical arm have different lengths and are arranged at intervals. Signals with different frequencies can be received or sent by means of the first helical arm and the second helical arm, so as to realize multi-system coverage of the helical antenna. The parasitic arm and the second helical arm have the same direction of extension and are coupled, and the broadening of the frequency band of signals corresponding to the second helical arm can be increased by means of the coupling between the parasitic arm and the second helical arm, so as to obtain a better signal quality.
More Like This:
| JPH0731613 | [Name of invention] A truncated cone-shaped 2-wire conical helix antenna |
| WO/2016/176043 | ROTARY CONTROL WITH INTEGRATED ANTENNA |
| JPH11154819 | SMALL-SIZED HELICAL ANTENNA |
Inventors:
YE LU (CN)
Application Number:
PCT/CN2018/113174
Publication Date:
May 07, 2020
Filing Date:
October 31, 2018
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H01Q11/08
Foreign References:
| CN106532233A | 2017-03-22 | |||
| FR2877148A1 | 2006-04-28 | |||
| CN103840268A | 2014-06-04 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF:
Previous Patent: RADIATOR, CIRCUIT BOARD AND COMPUTING DEVICE
Next Patent: SPIRAL ANTENNA AND COMMUNICATION DEVICE
Next Patent: SPIRAL ANTENNA AND COMMUNICATION DEVICE