A wideband wide-angle scanning phased array antenna based on triangular grid arrangement

A phased array antenna, wide-angle scanning technology, applied in the directions of antennas, resonant antennas, antenna arrays, etc., can solve the problems of no unit model, no bandwidth problem, etc., to reduce the number of array elements, easy to process, Optimize the effect of antenna standing waves

Active Publication Date: 2019-01-15
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this article stops at theoretical research and does not give a specific

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A wideband wide-angle scanning phased array antenna based on triangular grid arrangement
  • A wideband wide-angle scanning phased array antenna based on triangular grid arrangement
  • A wideband wide-angle scanning phased array antenna based on triangular grid arrangement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The antenna of this embodiment works at 7-13 GHz, and its unit structure 3D view, side view, and top view are shown in Figures 1-3 respectively, and the size of the array element is 16mm×13mm, which is about 0.69λ h ×0.56λ h (λ h for the wavelength of 13GHz).

[0022] The antenna consists of two layers of metamaterial wide-angle matching layers 10 and 20 from top to bottom, and a layer of non-marginal parasitic patch layer 30, as shown in Figure 1(a). The antenna layer is a dielectric laminated structure, including 40 to 70 layers, see Figure 1(b), the vertical distribution of each layer is shown in figure 2 .

[0023] The thicknesses of the first to fourth dielectric substrates 40 to 70 of the antenna layer are 0.127 mm, 2.973 mm, 0.254 mm, and 1.624 mm in sequence, and the relative dielectric constants are all 2.94.

[0024] The dipole unit 41 is printed on the upper surface of the first dielectric substrate 40, see image 3 (a); the first metal floor 61 is betwe...

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

No PUM Login to view more

Abstract

The invention discloses a wideband wide-angle scanning phased array antenna based on triangular grid arrangement, belonging to the fields of wireless communication technology, radar technology and thelike. A strong-coupling dipole antenna unit is adopted for the antenna of the invention, and the antenna has the characteristics of wide bandwidth. Parallel two-wire and short-circuit branch are usedas feed balun, and isolation metal wall is introduced to optimize antenna standing wave. The passive parasitic patch layer and the metamaterial wide-angle matching layer are used to improve the wide-angle and wide-band scanning characteristics of the array. Adopting triangular grid arrangement to increase the array element spacing and reduce the number of array elements so as to reduce the cost;A laminate structure is adopt between different dielectric substrates of that antenna lay, which is easy to be processed, and the dipole unit and the first metal floor are filled with dielectric, thereby greatly reducing the profile.

Description

technical field [0001] The invention belongs to the fields of wireless communication technology, radar technology, etc., and specifically relates to a phased array antenna unit with wide-angle and broadband scanning characteristics, which is arranged in a triangular grid and has the advantages of large array element spacing and small number, and is suitable for Low cost radar and communication system. Background technique [0002] In radar and communication systems, phased array antennas are widely used due to their advantages of high gain, fast beam scanning, high precision and easy beamforming. In the research and development of phased array antennas, wide-angle and broadband scanning are two important topics. Usually, the scanning range of the array beam needs to reach ±60°, so that the scanning range of the three sets of array beams can cover the whole airspace. However, the active standing wave of the array unit is different at different scanning angles due to the exi...

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
no application Login to view more
IPC IPC(8): H01Q21/00H01Q9/28H01Q9/04H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50H01Q9/0407H01Q9/285H01Q21/00
Inventor 屈世伟邹文慢李鹏发潘宇虎汤恒河杨仕文
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap