Planar broadband transmission array antenna based on liquid crystal adjustable material
Active Publication Date: 2020-10-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF12 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to provide a planar broadband transmission array antenna based on liquid crystal adjustable materials, aiming to solve the problems of large transmission loss, low radiation efficiency and narrow bandwidth of traditional transmission array antennas
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 Construction
[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0018] see figure 1 , the present invention provides a planar broadband transmission array antenna based on liquid crystal tunable materials, comprising a transmission array unit 1 and a feed source 2, the feed source 2 is located on one side of the transmission array unit 1, and the transmission array unit 1 Including a first dielectric layer 11 and a second dielectric layer 12, the number of the first dielectric layer 11 is two, the two first dielectric layers 11 are arranged opposite, and the second dielectric layer 12 is loca...
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 |
|---|---|---|
| Length | aaaaa | aaaaa |
| Length | aaaaa | aaaaa |
| Width | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a planar broadband transmission array antenna based on a liquid crystal adjustable material. The antenna comprises a transmission array unit and a feed source. The feed sourceis positioned at one side of the transmission array unit; the transmission array unit comprises first dielectric layers and a second dielectric layer, wherein the number of the first dielectric layersis two, the two first dielectric layers are oppositely arranged, the second dielectric layer is located between the two first dielectric layers, each first dielectric layer is provided with a plurality of Yersinia cross-shaped structures, the plurality of Yersinia cross-shaped structures are distributed in a rectangular array, and the second dielectric layer is provided with a plurality of liquidcrystal grooves. A double-layer Yersinia cold scattering cross-shaped ring stacking structure is adopted, and unit phase blocking control is realized by loading a liquid crystal adjustable material in the middle of the double-layer stacking structure, so excellent performances of wide frequency band, high gain, high focusing property, low profile, no feed source shielding and high radiation efficiency are realized.
Description
technical field [0001] The invention relates to the technical field of antennas, in particular to a flat broadband transmission array antenna based on liquid crystal adjustable materials. Background technique [0002] In recent years, due to the continuous development of the fields of satellite communication, aerospace, and radar systems, various applications have increasingly stringent requirements on antenna performance. In civil antennas, due to the complex electromagnetic environment, the antennas are required to have strong anti-interference and high utilization rate characteristics. Typical antennas are dual-polarized base station antennas. In the fields of satellite communication, radar system and aerospace, large-aperture antenna systems with high gain and strong focus play a pivotal role, but traditional transmission array antennas have large transmission loss, low radiation efficiency and narrow bandwidth. Contents of the invention [0003] The purpose of the pr...
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 IPC IPC(8): H01Q1/36H01Q15/08H01Q21/00
CPCH01Q1/36H01Q21/00H01Q15/08
Inventor 蒋迪罗沙洪孝鹏朱凯白天明赵羽
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA