Title:
ANTENNA DEVICE AND VEHICLE-MOUNTED APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/000181
Kind Code:
A1
Abstract:
An antenna device and a vehicle-mounted apparatus. The antenna device comprises a substrate, a ground provided at one side surface of the substrate, and an antenna provided at another side surface of the substrate. The antenna comprises a first radiator, a second radiator, a one-to-two power divider, and a feed portion. A first impedance regulation recess is formed on the first radiator. One end of a first transmission wire is inserted into the first impedance regulation recess and is connected to the first radiator. Insertion of said end of the first transmission wire into the first impedance regulation recess divides the first impedance regulation recess into two symmetrically arranged first impedance regulation sub-recesses. A second impedance regulation recess is formed on the second radiator. One end of a second transmission wire is inserted into the second impedance regulation recess and is connected to the second radiator. Insertion of said end of the second transmission wire into the second impedance regulation recess divides the second impedance regulation recess into two symmetrically arranged second impedance regulation sub-recesses. The antenna device has a simple structure, enables an antenna to provide directional radiation, and has a wide radiation range.
Inventors:
SHEN YACHUAN (CN)
Application Number:
PCT/CN2019/094081
Publication Date:
January 07, 2021
Filing Date:
June 30, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H01Q1/32
Foreign References:
| CN104993231A | 2015-10-21 | |||
| CN109216916A | 2019-01-15 | |||
| CN105024151A | 2015-11-04 | |||
| CN204885424U | 2015-12-16 | |||
| CN204760538U | 2015-11-11 | |||
| US20190019768A1 | 2019-01-17 |
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: