Unlock instant, AI-driven research and patent intelligence for your innovation.

Two-dimensional beam-forming passive antenna array

A beamforming and passive antenna technology, applied in antenna arrays, specific array feeding systems, antennas, etc., to achieve the effects of design and implementation, high gain, and low network loss

Inactive Publication Date: 2018-06-19
NANJING UNIV OF SCI & TECH
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no relevant description in the prior art

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
  • Two-dimensional beam-forming passive antenna array
  • Two-dimensional beam-forming passive antenna array
  • Two-dimensional beam-forming passive antenna array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] to combine Figure 4 , the present invention is an antenna array with "cosecant square" beamforming in elevation dimension and low sidelobe in azimuth dimension, which specifically includes a total feed port 4, azimuth dimension power distribution network 2, elevation dimension line array 1, and a switch Structure 3.

[0042] to combine Figure 4 , the present invention is an antenna array with "cosecant square" beamforming in elevation dimension and low sidelobe in azimuth dimension, with a center frequency of 16.5GHz and a bandwidth of 1GHz.

[0043] to combine Figure 5 , the dielectric plate of the pitch-dimensional line array 1 is "Rogers RT / duroid 5880(tm)" with a thickness of 0.508mm. Eight antenna units 6 in the form of printed dipoles are arranged on a dielectric board of 95 mm×50 mm, and the distance between adjacent units in the pitch dimension is 10 mm. Each unit is fed through the pitch dimension power distribution network 5, and at the same time realizes...

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 two-dimensional beam-forming passive antenna array, and the antenna array comprises pitching-dimensional linear arrays for achieving the pitching-dimensional beam forming; anadapter structure which achieves an azimuth-dimensional power dividing network for achieving the azimuth-dimensional beam forming; and a general feed port. The pitching-dimensional linear arrays respectively employ a printed oscillator as an antenna unit, and a full shunt-fed Wilkinson power dividing network is designed for achieving the amplitude phase weighting. The azimuth-dimensional power dividing network employs a waveguide full shut-fed mode, so as to achieve the amplitude phase weighting required by the azimuth-dimensional beam forming. The pitching-dimensional linear array is connected to all branches of the azimuth-dimensional power dividing network through the adapter structure, and achieves the good feed of the azimuth-dimensional power dividing network to each pitching-dimensional linear array. The general feed port is connected to a general port of the azimuth-dimensional power dividing network, and is used for the feeding of the azimuth-dimensional power dividing network. The antenna array can achieve the independent two-dimensional beam forming and facilitates the design and implementation, and the waveguide mode employed by the azimuth-dimensional power dividing network can improve the efficiency of an antenna.

Description

technical field [0001] The invention relates to the technical field of antenna arrays, in particular to a two-dimensional beam-forming passive antenna array. Background technique [0002] With the rapid development of modern electronic countermeasures technology and electronic reconnaissance systems, in wireless communication and radar detection, antennas, as the transceiver components of electromagnetic waves, are an important part of radio systems, and for different applications, antennas often have different Require. For example, under the requirements of air-to-air communication and detection, on the one hand, the antenna usually requires low sidelobes to the ground, in order to reduce the multipath interference caused by the reflection of ground objects after the electromagnetic waves irradiate the ground; Wide beam or scanning to achieve airspace coverage and avoid communication and radar detection blind spots. The azimuth dimension often has different requirements c...

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): H01Q1/38H01Q1/50H01Q21/00
CPCH01Q1/38H01Q1/50H01Q21/0006
Inventor 王昊吴辰炜薛成
Owner NANJING UNIV OF SCI & TECH