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

5G large-frequency-ratio beam scanning antenna with common radiator

A technology of beam scanning and radiator, applied in the direction of slot antenna, antenna grounding device, radiation element structure, etc., can solve the problems of unrealized beam scanning and complex feeding structure, and achieve good beam scanning characteristics and compact overall size Effect

Active Publication Date: 2022-04-12
SOUTH CHINA UNIV OF TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology does not achieve the performance of beam scanning in the millimeter wave band, and the feeding structure is complex, and it does not achieve consistent broadside characteristics in the dual band

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
  • 5G large-frequency-ratio beam scanning antenna with common radiator
  • 5G large-frequency-ratio beam scanning antenna with common radiator
  • 5G large-frequency-ratio beam scanning antenna with common radiator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A 5G large frequency ratio beam scanning antenna with a common radiator, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it includes a first dielectric substrate 1, an adhesive layer 2 and a second dielectric substrate 3 from top to bottom;

[0061] A pair of parasitic patches 11 and a common radiator structure 12 are provided on the upper surface of the first dielectric substrate 1;

[0062] In this embodiment, the common radiator structure 12 includes four mirror-symmetric cavity sub-arrays in the millimeter wave band, and the four cavity sub-arrays are arranged in parallel on the upper surface of the first dielectric substrate 1 in turn, and the adjacent cavity sub-arrays The arrays are connected at the point where the electric field of each cavity sub-array is the smallest, and by feeding with a phase difference of 180° at the ports of adjacent cavity sub-arrays, the radiation characteristics of the broadside...

Embodiment 2

[0078] In this embodiment, the beam scanning characteristic is realized by further changing the phase difference between ports of adjacent cavity sub-arrays;

[0079] The difference from Embodiment 1 is that the phase difference between the ports of adjacent cavity sub-arrays is set to 75° to achieve a 20° inclined beam;

[0080] When the phase difference between the ports of adjacent cavity sub-arrays is 150°, a 38° inclined beam is realized;

[0081] Because the structure is symmetrical about the central axis, when the phase difference between ports of adjacent cavity subarrays is -75°, a tilted beam of -20° is realized. A tilted beam of -38° is achieved when the phase difference between the ports of the cavity subarray is -150°.

Embodiment 3

[0083] In this embodiment, the difference from Embodiment 1 is that in Embodiment 1, the cavity sub-array is an array of five elements, while in this embodiment, the cavity sub-array is an array of three elements. The achieved radiation performance is shown in the figure below, Figure 14 It is the pattern of the sub 6-GHz frequency band, and it can be seen that it still has the characteristic of broadside. Figure 15 It is the pattern of the millimeter wave frequency band, and it can be seen that a narrow beam with a high gain is achieved. Therefore, in this embodiment, consistent broadside characteristics are still achieved in the two frequency bands, which meets the development needs of wireless applications.

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 5G large-frequency-ratio beam scanning antenna with a common radiator. The antenna comprises a first dielectric substrate, a bonding layer and a second dielectric substrate from top to bottom. A pair of parasitic patches and a common radiator structure are arranged on the upper surface of the first dielectric substrate; a metal floor is arranged between the first dielectric substrate and the bonding layer; the common radiator structure and the metal floor are connected through a plurality of first short circuit columns; the parasitic patch and the metal floor are connected through a plurality of second short circuit columns; a microwave feeder line and a plurality of millimeter wave feeder lines are arranged on the lower surface of the second dielectric substrate; the common radiator structure and the plurality of millimeter wave feeder lines are respectively connected through a plurality of first probes; the common radiator structure and the microwave feeder line are connected through a plurality of second probes. The three-phase asynchronous motor has a relatively compact size. According to the invention, the radiation characteristic of edge emission is realized in sub-6GHz and millimeter wave frequency bands, and meanwhile, the antenna has a wave beam scanning function in the millimeter wave frequency band.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a 5G large frequency ratio beam scanning antenna with a common radiator. Background technique [0002] In recent years, wireless communication systems are gradually developing towards miniaturization and multi-frequency. The driving force for the development of multi-frequency systems mainly comes from covering the emerging 5G communication frequency bands, namely sub-6GHz and millimeter wave frequency bands. The traditional large frequency ratio antenna increases the size and weight of the antenna module and the whole system, so the compact dual-frequency common radiator antenna has been developed. However, general dual-band antennas do not have the same radiation characteristics in the microwave and millimeter wave bands. Therefore, the research of large frequency ratio antennas with common radiators has become an important topic. [0003] With the development of high-s...

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): H01Q1/38H01Q1/48H01Q1/50H01Q13/10
Inventor 涂治红聂娜
Owner SOUTH CHINA UNIV OF TECH