Title:
ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/184081
Kind Code:
A1
Abstract:
The present disclosure relates to the technical field of smart devices, and in particular to an electronic device, comprising: an annular radiator, which is electrically connected to a mainboard to form a circularly polarized antenna; a dual-band return-to-ground unit, which comprises a first return-to-ground unit and a second return-to-ground unit, wherein the first return-to-ground unit and the radiator form a circularly polarized antenna, the working frequency band of which is at a first communication frequency band, and the second return-to-ground unit and the radiator form a circularly polarized antenna, the working frequency band of which is at a second communication frequency band; and filtering units, which are arranged on a circuit where the first return-to-ground unit and/or the second return-to-ground unit are/is connected to the radiator, wherein the filtering unit is used for filtering signals of communication frequency bands other than a communication frequency band of an antenna circuit where the filtering unit is located. In the embodiments of the present disclosure, a dual-band circularly polarized antenna is realized by using one radiator, thus simplifying the structure of the antenna, and facilitating use in a small-sized device.
Inventors:
ZHAO ANPING (CN)
Application Number:
PCT/CN2022/083357
Publication Date:
October 05, 2023
Filing Date:
March 28, 2022
Export Citation:
Assignee:
ANHUI HUAMI INFORMATION TECH CO LTD (CN)
International Classes:
H01Q1/27; H01Q1/24; H01Q1/52; H01Q7/00
Foreign References:
| US20210239847A1 | 2021-08-05 | |||
| CN103682565A | 2014-03-26 | |||
| US20130257659A1 | 2013-10-03 | |||
| CN108428995A | 2018-08-21 | |||
| CN112490634A | 2021-03-12 | |||
| CN214313522U | 2021-09-28 | |||
| US20210119336A1 | 2021-04-22 | |||
| US20190058256A1 | 2019-02-21 | |||
| CN111490345A | 2020-08-04 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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