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Time reversal subwavelength array antenna used for wireless mobile terminal

A mobile terminal and time-reversal technology, which is applied in the electronic field, can solve the problems that antenna arrays cannot be effectively integrated, and achieve the effects of convenience, high data transmission rate, and small mutual coupling

Inactive Publication Date: 2013-05-08
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 subwavelength array antenna used for wireless mobile terminal
  • Time reversal subwavelength array antenna used for wireless mobile terminal
  • Time reversal subwavelength array antenna used for wireless mobile terminal

Examples

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Effect test

Embodiment Construction

[0028] A wireless mobile terminal uses time-reversal sub-wavelength array antenna, such as figure 1 As shown, it is formed by stacking multiple identical antenna units, and the distance between two adjacent antenna units is between 1 / 40 and 1 / 2 wavelength.

[0029] Each antenna unit such as figure 2 As shown, it consists of a rectangular dielectric substrate, a metal patch on the front of the rectangular dielectric substrate, and a metal patch on the back of the rectangular dielectric substrate.

[0030] The metal patch on the front of the rectangular dielectric substrate such as figure 2 As shown in (a), it consists of two separate parts:

[0031] The first part of the metal patch 1 is an elliptical radiation unit, the geometric center of the elliptical radiation unit is located on the midline of the narrow side of the dielectric substrate, and the long axis of the ellipse is parallel to the narrow side of the rectangular dielectric substrate; The 1 / 4 wavelength impedanc...

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Abstract

The invention relates to a time reversal subwavelength array antenna used for a wireless mobile terminal, belonging to the technical field of electronics. The antenna is formed by laminating multiple antenna units which are arranged at the intervals of 2.5-50% of the wavelength. Each antenna unit is composed of metal patches which are respectively arranged on the front and the back of a rectangular medium substrate; the metal patch on the front of the rectangular medium substrate comprises an elliptic radiating unit at the center as well as a first rectangular metal patch and a first right-angle trapezoid metal patch which are mutually connected; the metal patch on the back of the rectangular medium substrate comprises a second rectangular metal patch and a second right-angle trapezoid metal patch which are mutually connected; the two right-angle trapezoid metal patches are the same in size and are opposite in position, and an arc-shaped protuberance is arranged on the second rectangular metal patch close to the elliptic radiating unit; and etching grooves are uniformly distributed on each metal patch. The antenna provided by the invention is applied to a time reversal time domaincommunication mobile terminal, each antenna unit channel is relatively independent, cross coupling is less, interference from an adjacent channel is less, and higher data transmission rate and higherfrequency spectrum utilization factor can be supported.

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 elements surface to surface 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 o...

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 王秉中葛广顶臧锐
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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