Title:
DUAL-FREQUENCY FEED SOURCE AND DUAL-FREQUENCY ANTENNA
Document Type and Number:
WIPO Patent Application WO/2022/104741
Kind Code:
A1
Abstract:
The present application provides a dual-frequency feed source and a dual-frequency antenna, which can solve the problems of an existing dual-frequency antenna having a disordered electromagnetic field distribution, a high sidelobe and a deteriorated antenna pattern, and thus improve the performance of an antenna pattern. The dual-frequency antenna comprises a primary reflection surface, a secondary reflection surface, a dual-frequency feed source and a dielectric support, wherein the primary reflection surface and the secondary reflection surface are arranged opposite each other. The dual-frequency feed source comprises a low-frequency feed source and a high-frequency feed source. The dielectric support is arranged between the primary reflection surface and the secondary reflection surface, the dielectric support comprises an annular first support portion with an opening at one face, the opening of the first support portion is arranged facing the secondary reflection surface, and the thickness of the first support portion is related to a relative dielectric constant of the first support portion, an operating frequency of the low-frequency feed source and an operating frequency of the high-frequency feed source. The secondary reflection surface is fixedly connected to the opening position of the first support portion, and encloses a cavity with the first support portion; and a first end of the dual-frequency feed source passes through the first support portion and is located in the cavity, and a second end of the dual-frequency feed source is connected to the center of the primary reflection surface.
Inventors:
DENG RUYUAN (CN)
CHEN ZEFENG (CN)
CHEN YONG (CN)
GU AIJUN (CN)
CHEN ZEFENG (CN)
CHEN YONG (CN)
GU AIJUN (CN)
Application Number:
PCT/CN2020/130611
Publication Date:
May 27, 2022
Filing Date:
November 20, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01Q19/10; H01Q13/20
Foreign References:
| CN109411870A | 2019-03-01 | |||
| CN104025383A | 2014-09-03 | |||
| JP2014154960A | 2014-08-25 | |||
| US20050088355A1 | 2005-04-28 |
Other References:
See also references of EP 4231457A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
Download PDF:
Previous Patent: METHOD AND APPARATUS FOR UPDATING NON-PUBLIC NETWORK SUBSCRIPTION INFORMATION
Next Patent: FERROELECTRIC MEMORY AND ELECTRONIC DEVICE
Next Patent: FERROELECTRIC MEMORY AND ELECTRONIC DEVICE