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multi-frequency antenna

A multi-frequency antenna and antenna unit technology, applied in antenna, antenna coupling, antenna components, etc., can solve the problems of poor antenna indicators, achieve good third-order intermodulation indicators, improve pattern indicators, and reduce mutual interference Effect

Active Publication Date: 2020-12-15
COMBA TELECOM TECH (GUANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditionally, there is mutual interference between systems in different frequency bands of the multi-frequency antenna, resulting in poor performance of the antenna

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , figure 2 As shown, a multi-frequency antenna includes a first antenna unit 100 and a second antenna unit 200 . Such as image 3 , Figure 4 As shown, the first antenna unit 100 includes a first radiation unit 110 and a first base plate 120 , and the first radiation unit 110 is disposed on the first base plate 120 . Such as Figure 5 , Figure 6 As shown, the second antenna unit 200 includes a second radiating unit 210 , a second base plate 220 , a feeding network 230 , a coaxial cable 240 and a calibration network component 250 . Both the second radiating unit 210 and the feeding network 230 are disposed on the second bottom plate 220 , and the second radiating unit 210 is connected to the feeding network 230 . One end of the coaxial cable 240 is connected to the feeding network 230 , and the other end of the coaxial cable 240 is connected to the calibration network component 250 . The second base plate 220 is insulated from the first base pla...

Embodiment 2

[0043] The difference between the multi-frequency antenna described in Embodiment 2 and the multi-frequency antenna described in Embodiment 1 lies in that the structure of the second antenna unit 200 is different.

[0044] In the second embodiment, if Figure 8 , Figure 9 As shown, the second antenna unit 200 further includes a third radiation unit 260 , and the third radiation unit 260 is disposed on the first bottom plate 120 . Furthermore, after the second antenna unit 200 is connected to the first antenna unit 100, the second radiating unit 210 of the second antenna unit 200 can achieve the effect of not sharing the ground with the first radiating unit 110 of the first antenna unit 100, while the second The third radiating unit 260 of the second antenna unit 200 can realize the co-ground effect with the first radiating unit 110 of the first antenna unit 100 . The multi-frequency antenna of this embodiment can be set to the effect that the second antenna unit 200 and the...

Embodiment 3

[0046] The difference between the multi-frequency antenna described in the third embodiment and the multi-frequency antenna described in the first embodiment lies in that the insulating connection structures of the second base plate 220 and the first base plate 120 are different.

[0047] In the third embodiment, such as Figure 10 , Figure 11 As shown, there are multiple second radiation units 210 . The second bottom plate 220 is a plurality of plastic bases 400 corresponding to the second radiation units 210 one by one. The second radiation unit 210 is installed on the corresponding plastic base 400 , and the plastic base 400 is installed on the first bottom plate 120 . With the above-mentioned structure, each second radiating unit 210 of the second antenna unit 200 is fixed to the first bottom plate 120 of the first antenna unit 100 through the corresponding plastic base 400, so that the connection between the second bottom plate 220 and the first bottom plate 120 can be...

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Abstract

The invention discloses a multi-band antenna, which includes a first antenna unit and a second antenna unit. The first antenna unit includes a first radiating element and a first bottom plate. The first radiating element is disposed on the first bottom plate. The second antenna unit comprises a second radiating unit, a second bottom plate, a feeding network, a coaxial cable and a calibration network component. The second radiating unit and the feeding network are both disposed on the second bottom plate. The second radiating unit is connected with the feeding network. One end of the coaxial cable is connected with the feeding network, and the other end of the coaxial cable is connected with the calibration network component. The second bottom plate is insulated from the first bottom plate. According to the invention, systems in different frequency bands are independent and insulated, and therefore, the mutual interference between the systems in the different frequency bands can be reduced, so that the antenna has better index performance.

Description

technical field [0001] The invention relates to the technical field of mobile communication antennas, in particular to a multi-frequency antenna. Background technique [0002] With the continuous development of mobile communication technology, communication networks of different standards require large-scale site construction. In order to save site and antenna resources, multi-frequency antennas have been more and more widely used. Traditionally, systems in different frequency bands of a multi-frequency antenna interfere with each other, resulting in poor performance of the antenna. Contents of the invention [0003] Based on this, it is necessary to provide a multi-frequency antenna, which can reduce mutual interference between systems in different frequency bands, so that the antenna has better index performance. [0004] Its technical scheme is as follows: [0005] A multi-frequency antenna includes a first antenna unit and a second antenna unit, the first antenna uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/52H01Q5/30H01Q5/342
CPCH01Q1/523H01Q5/30H01Q5/342
Inventor 王钦源李明超孙全有
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD