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Wideband double frequency mobile communication base station antenna

A mobile communication base station and broadband technology, which is applied in the direction of antenna, independent antenna unit combination, radiation element structure, etc., can solve the problems of complex three-dimensional structure and achieve the effect of broadband impedance matching

Inactive Publication Date: 2012-04-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the base station antenna adopts the form of vertical vibrator or multi-layer patch stacking, and the three-dimensional structure is complex.

Method used

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  • Wideband double frequency mobile communication base station antenna
  • Wideband double frequency mobile communication base station antenna
  • Wideband double frequency mobile communication base station antenna

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] In this implementation example, the high-frequency radiation unit array adopts an 8-element array, including 8 high-frequency radiation units; the low-frequency radiation unit array adopts a 4-element array, including 4 low-frequency radiation units. figure 1 is the front top view of the whole antenna, figure 2 It is the side view of the whole antenna. The low-frequency radiation units 1A-1D and the high-frequency radiation units 2A-2H are nested and arranged along the longitudinal axis of the reflector 4 and printed on the antenna...

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Abstract

The invention, suitable for the field of mobile communication base station antenna, discloses a wideband double frequency mobile communication base station antenna, which comprises a low frequency radiation unit array, a high frequency radiation unit array, a low frequency feed network, a high frequency feed network and a reflection plate. The low frequency unit enhances bandwidth by introducing parasitic radiation patch. Tail ends of two pairs of radiation arms of the high frequency radiation unit are bent, the high frequency radiation unit array is nested in blank region remained by the lowfrequency radiation unit, and the radiation unit array is fixed axially to the reflection plate. The high and low frequency radiation units are etched on the same surface of medium base plate of antenna radiation body, and L-shaped coupled micro-strip feed lines are etched on the other surface of the medium base plate of the antenna radiation body. High and low frequency micro-strip power dividers disposed on the reflection plate are connected with the high and low frequency radiation units respectively through a coaxial line, each signal is input to the radiation unit corresponding to each array in uniform amplitude and constant phase way, and such symmetrical feed mechanism ensures that the antenna can obtain good directional diagram property.

Description

technical field [0001] The invention relates to an antenna used in the field of mobile communication, in particular to a broadband dual-frequency mobile communication base station antenna. Background technique [0002] With the development of mobile communication technology, the base station antenna, as an important part of the mobile communication wireless access system, also improves with the replacement of the communication system, and its performance directly affects the overall performance of the entire wireless network. The rapid development of mobile communication technology requires base station antennas to be miniaturized, broadband, multi-band, high-efficiency and more adaptable to various requirements of the system. With the continuous increase of user density, the coverage radius of cellular cells decreases, resulting in the situation of many base stations in many places. In densely populated urban areas, base station antennas occupy an expensive area; The selec...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q19/10H01Q21/30
Inventor 李融林崔悦慧
Owner SOUTH CHINA UNIV OF TECH
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