Built-in electric drive device of mobile communication electric-tuning base station antenna
An electric drive and antenna technology, applied in antennas, electrical components and other directions, can solve the problems of high manufacturing cost, poor reliability, low mechanical efficiency, etc., achieve strong scalability and applicability, easy mold manufacturing, and reduce production costs. Effect
Inactive Publication Date: 2011-08-03
西安新海天通信有限公司
View PDF3 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It can be seen that the current built-in drive system for the antenna phase shifter of the existing electric-adjustable base station is composed of two parts: a rotary electric device and a transmission mechanism, including many gear mechanisms and screw nut mechanisms, which have complex structures, large volumes, The shortcomings of many parts, long transmission chain, poor reliability, low mechanical efficiency, high energy consumption, and high manufacturing cost have seriously affected the further popularization and application of electronically adjustable antennas.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] refer to figure 1 , the existing electronically adjustable base station antenna has a built-in electric drive device, which is mainly composed of a motor 11, a reducer 12, a screw 14, a nut 13, a connecting rod 15 and an antenna phase shifter 16. The motor 11 is driven by rotation, and after being decelerated by the reducer 12 , drive the screw 14 to rotate, the screw rotates to drive the nut 13 to translate axially, and finally the nut 13 translates to drive the connecting rod 15 to change the phase of the antenna phase shifter 16 to adjust the downtilt angle of the antenna.
[0017] refer to figure 2 and image 3 The built-in electric drive device of the electric base station antenna of the present invention is mainly composed of a stepper motor 21, a base 25, a gear 22, a rack 23, a control circuit board 26, a magnetic steel 28, a connecting rod 29 and an antenna phase shifter 24.
[0018] The base 25 is a flat cuboid made of metal or nonmetal, and one side of the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a built-in electric drive device of a mobile communication electric-tuning base station antenna, mainly solving the problems of complex structure, high cost and poor reliability of the built-in electric drive device of the traditional electric-turning base station antenna. The entire built-in electric drive device comprises a step motor, an antenna phase shifter and a rotation-straight line conversion mechanism, wherein the rotation-straight line conversion mechanism mainly comprises a base (25), a gear (22), a rack (23), a control circuit board (26) and magnetic steel (28), the step motor (21) is respectively connected with the gear (22) and the control circuit board (26), the gear (22) is engaged with the teeth of the rack (23), the magnetic steel (28) is fixed on two ends of the rack (23), and the rack is connected with a connection rod (29) of the antenna phase shifter; and the step motor (21) drives the gear (22) to rotate to enable the rack (23) to move linearly so as to drive the antenna phase shifter (24) to move to realize regulation of changes of a downward inclination angle of the antenna. The built-in electric drive device disclosed by the invention has the advantages of simple structure, low cost and reliable property.
Description
technical field [0001] The invention relates to antenna technology, in particular to a built-in electric drive device used for adjusting the phase shifter of an antenna phase shifter of a mobile communication electric adjustment base station. Background technique [0002] With the rapid development of mobile communication technology, especially the arrival of 3G, higher requirements are put forward for the performance and bandwidth of the base station antenna, which is an important part of mobile communication equipment. In network work such as wireless coverage design, optimization, adjustment, expansion, and network repair, in order to control the size of the cell and reduce interference from neighboring cells, it is necessary to direct the radiation power of the base station antenna to the main serving cell. The remote control electronically adjustable base station antenna that came into being uses its built-in phase shifter to control the phase of each radiating unit of ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H01Q3/32
Inventor 苏永刚杨健康李智陈金虎
Owner 西安新海天通信有限公司