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Micro-strip omnidirectional antenna used for mobile communication

An omnidirectional antenna and microstrip technology, applied in antennas, antenna arrays, resonant antennas, etc., can solve the problems of complex installation, zero radiation direction deviation, poor antenna consistency, etc.

Inactive Publication Date: 2011-06-29
西安新海天通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are basically two types of omnidirectional antennas widely used at home and abroad, one is the coaxial series-fed sleeve dipole antenna, and the other is the vibrator cross-transposition connection feed, which adopts the coaxial series-fed sleeve dipole antenna. The consistency of the length of the vibrator and the distance between the vibrator is not easy to guarantee, and the installation is very complicated. Basically, the installation is purely manual, which leads to poor consistency of the antenna, increases the burden of debugging, reduces the quality of the product, and the cost of the antenna is relatively high; A cross-feed structure, because the vibrator is cross-connected, resulting in phase and amplitude cross-connection, so that the zero radiation direction deviates from the axis, the use of bandwidth is relatively narrow, and the consistency of the antenna is poor
With the continuous expansion of the frequency of mobile communication systems and the continuous innovation of technology, with the introduction of TD-SCDMA, CDMA2000, Wimax and other standards, the requirements for product quality are getting higher and higher. Therefore, the previously used coaxial series feed sleeve Oscillator form is difficult to use in new systems
The existing technology adopts the coaxial series-fed sleeve dipole antenna, the consistency of the dipole length and dipole spacing is not easy to guarantee, and the installation is very complicated, which is basically manually installed, which leads to poor consistency of the antenna and increases the burden of debugging. The quality of the product is reduced, and the cost of the antenna is relatively high; another cross-feed structure, because the vibrator is cross-connected, causes phase and amplitude cross-connection, making the zero radiation direction deviate from the axis, and the use bandwidth is relatively narrow, and the consistency of the antenna is relatively high. Difference

Method used

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Embodiment Construction

[0018] refer to figure 1 , figure 2 and image 3 , the present invention is made up of microstrip radiation vibration column 1, microstrip conductor 2, microstrip feeder 3, microstrip matching network 4, microstrip grounding wire 5 and radio frequency cable head 6. The two ends of the microstrip radiation vibration column 1 are the left-end radiation arm 12 and the right-end radiation arm 13, and the microstrip wire 2 on the left-end radiation arm 12 of the microstrip radiation vibration column 1 is in phase with the microstrip ground wire 5 through the metallized via hole 14. connection; the right end radiation arm 13 is connected to the microstrip feeder 3 through the metallized via hole 8; in order to achieve different gain requirements, the microstrip radiation vibration column 1 can include a plurality of microstrip radiation oscillators, microstrip radiation oscillators n1, Microstrip radiation oscillator n2, and microstrip radiation oscillator nn. According to the n...

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Abstract

The invention provides a micro-strip omnidirectional antenna used for mobile communication, which takes a micro-strip lead and a micro-strip oscillator as radiation units and takes a micro-strip to serve as a matched feeding power grid. The micro-strip omnidirectional antenna used for mobile communication comprises a micro-strip radiation array (1), the micro-strip lead (2), a micro-strip feeder line (3), a micro-strip matching network (4), a micro-strip earthing line (5) and a coaxial cable head (6). The whole antenna arrays are connected into a whole by a metalized through hole. The micro-strip omnidirectional antenna is characterized in that all parts in the antenna array are connected by printed board light painting, and finally the coaxial cable head (6) is connected with the antenna array in a welding mode. Compared with the prior art, the micro-strip omnidirectional antenna has antenna consistency, stability and good electrical property. When a wave beam is inclined and the wave beam is formed, the micro-strip omnidirectional antenna has higher precision and is easier to realize.

Description

Technical field: [0001] The invention relates to antenna technology, in particular to a microstrip omnidirectional antenna for mobile communication. Background technique: [0002] At present, there are basically two types of omnidirectional antennas widely used at home and abroad, one is the coaxial series-fed sleeve dipole antenna, and the other is the vibrator cross-transposition connection feed, which adopts the coaxial series-fed sleeve dipole antenna. The consistency of the length of the vibrator and the distance between the vibrator is not easy to guarantee, and the installation is very complicated. Basically, the installation is purely manual, which leads to poor consistency of the antenna, increases the burden of debugging, reduces the quality of the product, and the cost of the antenna is relatively high; A cross-feed structure, because the vibrator is cross-connected, resulting in phase and amplitude cross-connection, so that the zero radiation direction deviates f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q9/04H01Q1/38
Inventor 王建青陈滢刘东峰赵玉叶祝进
Owner 西安新海天通信有限公司
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