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Time reversal sub-wavelength array antenna for wireless mobile terminal

A mobile terminal, time inversion technology, applied in the field of electronics, can solve the problem of ineffective integration of antenna arrays, and achieve the effects of convenience, good focusing effect, and high data transmission rate

Inactive Publication Date: 2013-06-12
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bottleneck that makes traditional antenna arrays unable to be effectively integrated in wireless mobile terminal systems with limited volume is broken

Method used

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  • Time reversal sub-wavelength array antenna for wireless mobile terminal
  • Time reversal sub-wavelength array antenna for wireless mobile terminal
  • Time reversal sub-wavelength array antenna for wireless mobile terminal

Examples

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Effect test

Embodiment Construction

[0022] A time-reversal subwavelength array antenna for wireless mobile terminals, such as figure 1 As shown, it is formed by stacking multiple identical antenna elements. Each antenna unit such as figure 2As shown, the shape of the radiation unit 4 located on the front of the rectangular dielectric substrate is an isosceles triangular ring, the angle between the two waists is between 30 and 50 degrees, and the bottom side is parallel to the narrow side of the rectangular dielectric substrate; the isosceles A number of cross grooves with two arms of equal length are evenly etched on the triangular ring. The length of the two arms of the cross groove is between 1 / 40~1 / 20 wavelength and the width is between 1 / 400~1 / 200 wavelength. The apex position of the isosceles triangular ring is connected to the third microstrip line 1 through the first section of microstrip line 3 and the second section of microstrip line 2 in turn, wherein the first section of microstrip line 3 and the s...

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Abstract

The invention discloses a time reversal sub-wavelength array antenna for a wireless mobile terminal and belongs to the electronic technical field. The time reversal sub-wavelength array antenna consists of a plurality of same antenna units which are stacked with one another; a radiating unit of each of the antenna units is an isosceles triangular ring; crossed slots are etched on the isosceles triangular rings uniformly; the peaks of the isosceles triangular rings are connected with a 50-ohm micro-strip feed line through an impedance transformation micro-strip; a metal base plate is positioned at a position, corresponding to the impedance transformation micro-strip and the 50-ohm micro-strip feed line, on the back of a rectangular medium substrate; crossed slots are uniformly etched on the rectangular metal base plate; and a distance between the radiating units of two adjacent antenna units is ranged from 1 / 40 to 1 / 2 wavelength. When applied in a mobile terminal of a time domain communication system, time reversal sub-wavelength array antenna ensures that the channels in a multi-antenna system are relatively independent by using a time reversal technology and the cross coupling and interference between the adjacent channels are low, supports higher data transmission rate and higher frequency spectrum utilization rate, and greatly improves the communication capacity and the communication rate of the mobile terminal.

Description

technical field [0001] The invention belongs to the field of electronic technology, and relates to a high-density array antenna array, the distance between the antenna planes is much smaller than the working wavelength, in particular to a time-reversal sub-wavelength antenna array for wireless mobile terminals. Background technique [0002] Improving the communication capacity and communication rate of the mobile communication system is always the goal pursued by mobile communication. With the continuous growth of personal service requirements, mobile terminals are faced with a huge demand for urgent improvement in communication capacity and communication rate. Designing multiple antenna units on the mobile terminal and increasing the number of independent wireless channels to improve the communication capacity and communication rate of the mobile terminal is one of the main means for future mobile communication to improve the communication performance of the mobile terminal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q9/04H01Q1/24H01Q21/28
Inventor 王秉中葛广顶王多
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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