Composite metasurface antenna
A metasurface and antenna technology, applied in the direction of antenna, resonant antenna, antenna grounding switch structure connection, etc., can solve the problems of low antenna gain, serious path loss, short wavelength, etc., and achieve the effect of high gain and low cost
Active Publication Date: 2021-08-31
深圳市博达盛科技有限公司
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the problems of millimeter-wave frequency band communication are: 1) The wavelength is short and the path loss is serious
At the same time, the millimeter wave is in the absorption peak frequency band of the atmosphere, which further aggravates the path loss
2) It is difficult for millimeter waves to penetrate solid obstacles, so it is limited to line-of-sight propagation. For environments with occlusions, the transmission quality of millimeter waves is poor
Although the aperture is shared and no feed network is required, the gain obtained by the antenna is very low
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0044] Such as figure 1 , figure 2 As shown, the composite metasurface antenna of the embodiment of the present invention is sequentially provided with a first substrate 1, a second substrate 2, and a support column 3 from top to bottom, and the first substrate 1 and the second substrate 2 are supported by The pillars 3 are connected. In this embodiment, the distance between the first substrate and the second substrate is 53mm. A composite metasurface structure is provided on the first substrate, and a primary feed source is provided on the second substrate.
[0045]The composite metasurface of this embodiment combines the Fresnel zone lens and the Fabry-Perot cavity structure. It can realize the fusion of the Fresnel wave zone lens working in the millimeter wave frequency band and the partial reflection surface of the Fabry-Perot resonator working in the Sub-6 GHz frequency band. Both bands can obtain high gain and do not need a feed network. It can be realized only throu...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| transmittivity | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a composite metasurface antenna. The antenna is sequentially provided with a first substrate and a second substrate from top to bottom, the first substrate is provided with a composite metasurface structure, the composite metasurface structure fuses a Fresnel zone lens and a Fabry-Perot resonant cavity, and the second substrate is provided with a primary feed source. An existing shared aperture surface antenna compatible with Sub-6GHz and millimeter wave frequency bands achieves high gain of millimeter waves in an array mode, but a feed network of the array is complex, extra loss is brought, and the existing design obtains little high gain at Sub-6GHz. According to the invention, the millimeter wave Fresnel wave zone lens is combined with the Fabry-Perot cavity antenna structure, so that the shared aperture surface antenna compatible with Sub-6GHz and millimeter wave frequency bands is effectively realized, and the antenna is simple in structure, easier to process and low in cost. Meanwhile, the millimeter wave frequency band and the Sub-6GHz frequency band obtain high gain at the same time, and a feed network is not needed.
Description
[technical field] [0001] The invention relates to the technical field of electronic communication antennas, in particular to a compound metasurface antenna. [Background technique] [0002] The development of communication systems is entering the 5G era. In order to overcome bandwidth limitations, the International Telecommunication Union has authorized several millimeter-wave frequency bands for potential 5G communications and other applications, including 24.25-27.5GHz, 37-40GHz, and 66-76GHz. The millimeter wave communication system will play a very important role in the architecture of the future mobile communication system. However, the problems of millimeter wave frequency band communication are: 1) The wavelength is short and the path loss is serious. At the same time, the millimeter wave is in the frequency band of the atmospheric absorption peak, which further aggravates the path loss. 2) It is difficult for millimeter waves to penetrate solid obstacles, so it is l...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00H01Q15/14H01Q9/04H01Q1/50
CPCH01Q15/0086H01Q1/50H01Q9/0407H01Q15/14
Inventor 朱剑锋冯波涛
Owner 深圳市博达盛科技有限公司