Super thin intelligent antenna for time division system

Abstract

Ultrathin intelligent antenna in use for time-division system includes feeding net, printed vibrator, calibration net, reflecting plate, and antenna outer cover. Characters are that the printed vibrators welded to the feeding net composed of microstrip circuit vertically constitute antenna array fixed on the reflecting plate. Through cable, antenna array connected to the calibration net constitutes main body of antenna. Connection cable for antenna array and calibration net is coaxial cable with SMA adaptor at two ends. There is certain proportional relation between distance from array to array and wavelength. The invention solves issue of unstable antenna performance existed for long time. Features are: lowering thickness of antenna, raising consistency and mechanical properties of antenna produced.

Description

technical field [0001] The invention relates to the technical field of communication antennas, in particular to a smart antenna for time-division synchronous code-division multiple access in third-generation mobile communication (3G). Background technique [0002] With the development of modern science and technology, we have entered the information age. Human beings have higher and higher demands on communication, and new communication methods represented by optical fiber communication, terrestrial and satellite communication and related technologies are developing rapidly. In the field of mobile communication, the third-generation mobile communication system came into being to meet the higher requirements of human beings for communication, but also faces huge technical challenges because of the arduous tasks to be completed. The breakthrough of smart antenna technology represented by timely beam forming technology and diversity technology will bring revolutionary progress...

AI Technical Summary

Problems solved by technology

Chinese patent 200410028003.x discloses a method of real-time calibration using a filter coupler, which can be used not only in planar arrays, but also in circular arrays. However, the passive devices required by this method are too complicated and difficult to implement. certain degree of difficulty

Chinese patent 20051005167.2 pointed out the method of adding a whole metal strip between each channel to form an electric wall, although this method can improve the isolation of the antenna, adding the whole metal strip adds difficulties to the debugging of the standing wave of the antenna

[0007] Chinese patent 02265177.2 discloses the use of a microstrip circuit board as the radiation unit of the smart antenna, and the antenna feed network and radiator are printed on the same circuit board. Although the consistency and reliability are increased, the height of the antenna is also greatly improved. increase, which adds difficulties to the mechanical performance design of the antenna

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