Multi-beam antenna of substrate integrated wave-guide based on principal of Rotman lens

A substrate-integrated waveguide and Rotman lens technology, which is applied in antennas, slot antennas, antenna arrays, etc., can solve the problems of lossy Rotman lenses that cannot work normally, difficult to process, and cannot be realized, so as to improve the quality of communication channels , easy processing, and low Q value

Inactive Publication Date: 2008-10-22
SOUTHEAST UNIV
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of operating frequency, especially when it enters the Ka frequency band or even the millimeter wave frequency band, the huge loss makes the Rotman lens composed of traditional planar circuits such as microstrip lines unable

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
  • Multi-beam antenna of substrate integrated wave-guide based on principal of Rotman lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The Rotman lens, the phase shifting network and the antenna array are connected to form a multi-beam antenna. The Rotman lens in the present invention is realized by a substrate-integrated waveguide similar to a waveguide structure composed of metal copper-clad surfaces on both sides of the dielectric layer and a metallized through hole, which acts as a beamforming network and phase-shifts with the substrate-integrated waveguide Network cascading realizes multi-group phase difference distribution by feeding power from different input ports, and then cascades with the antenna array composed of substrate-integrated waveguide slot array antennas to form a multi-beam antenna. The phase shifting network in the present invention utilizes substrate integrated waveguides with different widths to realize the required phase shifting amount. The antenna array in the present invention is made up of 9 identical 4-slot slot array antennas arranged side by side, and each slot array an...

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 relates to a substrate integrated waveguide multiple beam antenna based on the Lotman lens principle. A substrate integrated waveguide similar to a waveguide structure is realized through an upper layer metal copper-clad surface (1), a lower layer metal copper-clad surface (2) and metalized pylomes (4) on a medium substrate (3), and a multiple beam antenna is formed; the structure of the multiple beam antenna is divided into three parts that: the first part is a substrate integrated waveguide Lotman lens (53); the second part is a substrate integrated waveguide dephasing network (8); the third part is a radiation antenna array (91), wherein, the first part is directly cascaded with the second part; and the second part is directly cascaded with the third part. The antenna is suitable for a microwave millimeter wave beam shaping network and a multiple beam antenna feeder system; the substrate integrated waveguide multiple beam antenna formed by the antennas can be applied to a microwave millimeter wave multiple beam system and an intelligent antenna, and has the advantages of improving the quality of a communication channel, reducing the sending power, bit error rate and multipath interference, etc.

Description

technical field [0001] The substrate-integrated waveguide Rotman (Rotman) lens of the present invention can be applicable to the beamforming network of microwave millimeter wave and multi-beam antenna feeder system, and the substrate-integrated waveguide multi-beam antenna formed by it can be applied to microwave millimeter-wave multi-beam system And smart antennas can bring advantages such as improving communication channel quality, reducing transmission power and bit error rate, and reducing multipath interference. Background technique [0002] With the rapid development of mobile communications, traditional multiple access methods, such as CDMA, FDMA, and TDMA, cannot meet the growing needs of capacity expansion. The multi-beam antenna generates multiple fixed parallel beams through the beamforming network, which are used to cover the entire user area, so as to achieve the purpose of capacity expansion. The Rotman lens is a multi-beam forming network, which has the advan...

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): H01Q21/00H01Q13/06H01Q13/10H01Q3/34
Inventor 洪伟程钰间
Owner SOUTHEAST UNIV
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