Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Variable column surface/spherical surface luneburg lens antenna based on phased array feeding

A technology of Lunberg lens antenna and Lunberg lens, which is applied in the field of wireless communication technology and radar, can solve the problems of sensitivity to out-of-focus feed, limited effective omnidirectional radiation power, etc., achieve gain scanning accuracy, and solve beam coverage blind spots , the effect of reducing volume and weight

Active Publication Date: 2018-11-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems existing in this feeding mechanism are: since only one feed source is working for one beam pointing, the total effective isotropic radiated power (EIRP) is limited; the scanning accuracy is directly determined by the number of feed sources, and there is a beam coverage blind area; The feed source is sensitive to out-of-focus, etc. Therefore, proposing a new feed source mechanism is of great significance to the practical application of the Lunberg lens

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
  • Variable column surface/spherical surface luneburg lens antenna based on phased array feeding
  • Variable column surface/spherical surface luneburg lens antenna based on phased array feeding
  • Variable column surface/spherical surface luneburg lens antenna based on phased array feeding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The technical solutions of the present invention will be described in detail below in conjunction with the drawings and embodiments, but the protection scope of the present invention is not limited to the embodiments.

[0021] figure 1 It is a schematic diagram of a modified cylindrical Lunberg lens antenna according to the embodiment of the present invention. On the basis of the traditional cylindrical Lunberg lens, according to the diagram, one side surface is changed into three contiguous cut surfaces. Compared with the traditional cylindrical Lunberg lens, its area, volume and quality are all reduced by 8.6%. In this embodiment, the lens radius R=120 mm, θ=60°, and the corresponding dielectric constants of 101-1 to 101-5 are 1.2, 1.4, 1.6, 1.8, and 2, respectively.

[0022] figure 2 It is a schematic diagram of a modified spherical Luneberg lens antenna according to the embodiment of the present invention. It is made by cutting off seven rounded corners by using ...

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

PropertyMeasurementUnit
Central angleaaaaaaaaaa
Login to View More

Abstract

The invention discloses a variable column surface / spherical surface luneburg lens antenna based on phased array feeding, and belongs to the technical fields of wireless communication and radars. The antenna comprises a variable column surface / spherical surface luneburg lens, and a plurality groups of active plane phased array antennas serving as a feed source. By virtue of reasonable design of theposition relationship between the variable luneburg lens and the phased array antennas, and optimization of excitation coefficients of the phased array antennas serving as the feed source, wave beamsare formed in the needed direction, and wave beam electric scanning or simultaneous multi-beam wave scanning is realized. Compared with a traditional luneburg lens, the antenna disclosed in the invention has the characteristics and advantages of high gain, high effective isotropic radiated power (EIRP), high scanning precision, low mass and small volume, and convenience in processing and system integration by adopting the plane array feed source, so that the antenna can be applied to a radar and communication system.

Description

technical field [0001] The invention belongs to the field of wireless communication technology and radar technology, and in particular relates to a modified cylindrical / spherical Luneberg lens antenna using a phased array for feeding. Background technique [0002] Multi-beam antenna (Multi-Beam Antenna) is one of the important forms of many antennas. Because of its advantages of high gain, low cost, and simultaneous multi-beam generation, it has been widely used in satellite communications, radar systems, and electronic countermeasures. a technical field. Common multi-beam antennas mainly fall into three categories: multi-beam phased array antennas, multi-beam reflector antennas, and multi-beam lens antennas. The traditional multi-beam antenna mostly adopts the form of phased array, the performance of the antenna is relatively stable, and the beam scanning control is very convenient, but the traditional phased array antenna needs a relatively large and complex feeding netwo...

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): H01Q15/08H01Q19/06H01Q21/00H01Q21/29
CPCH01Q15/08H01Q19/06H01Q21/0006H01Q21/29G01S13/42
Inventor 屈世伟冯鹏雨
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com