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Method and apparatus for forming array antenna beam of mobile terminal

一种阵列天线、移动终端的技术，应用在天线支持物/安装装置、天线、天线阵列等方向，能够解决很难改进移动终端发送/接收特性等问题

Inactive Publication Date: 2005-03-09
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, under these conditions, it is difficult to improve the transmission / reception characteristics of mobile terminals

Method used

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  • Method and apparatus for forming array antenna beam of mobile terminal
  • Method and apparatus for forming array antenna beam of mobile terminal
  • Method and apparatus for forming array antenna beam of mobile terminal

Examples

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Embodiment Construction

[0028] The half-wavelength (λ / 2) dipole antenna is a common basic antenna. Such as figure 1 As shown, the coaxial cable is connected at the center of two wires of equal length, and the entire length of the two wires of the half-wavelength dipole antenna is half the wavelength of the operating frequency. In the plane parallel to the dipole antenna element, that is, the directivity in the x-y plane has such Figure 2A The circular shape shown, and the directionality in the y-z plane has the following Figure 2B The shape of the number 8 is shown. There is no directivity in the direction perpendicular to the dipole antenna element, that is, the z-axis direction.

[0029] Refer to image 3 , A beam is formed in the case where two half-wavelength dipole antennas are arranged on the arrangement axis at a certain predetermined interval. More specifically, the first half-wavelength dipole antenna 1 and the second half-wavelength dipole antenna 2 are fed in the same phase and with the sam...

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Abstract

A method for forming an array antenna beam of a mobile terminal periodically compares transmit / receive characteristics of a three-dimensional adaptive beam with transmit / receive characteristics of an omnidirectional beam periodically. A beam direction having better transmit / receive characteristics is then selected. By horizontally rotating an array antenna beam toward up or down at an angle of 360 DEG degrees, a direction having a maximum signal receiving value is searched, and a three-dimensional adaptive beam is set in the searched direction. By using position information of a mobile terminal together with the detected information, a beam direction is set. And, by comparing beam direction information set toward a maximum signal receiving direction with beam direction information set on the basis of position information of a base station / mobile terminal, an optimum beam is selected and formed, thereby improving transmit / receive characteristics of the mobile terminal.

Description

Technical field [0001] The present invention relates to a method and device for forming an array antenna beam of a mobile terminal. Background technique [0002] With the rapid growth of wireless mobile communication users, the research on increasing users under limited frequency channel capacity has aroused great interest both at home and abroad. In particular, by applying an array antenna in a mobile communication system, according to the spatial distribution of users, frequencies can be directionally transmitted / received, and thus power efficiency can be improved and interference can be reduced. Therefore, in order to develop a method for increasing the terminal acceptance range and user capacity of each base station, important research on the application of array antennas to mobile communication systems has been carried out. [0003] According to a method for forming a mobile terminal array antenna beam, a two-dimensional beam pattern is formed in the direction where the ampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q1/24H01Q3/26
CPCH01Q1/241H01Q3/26
Inventor 郑熙锡
Owner LG ELECTRONICS INC