Antenna

An antenna and radome technology, which is applied to antennas, antenna arrays, antenna parts, etc., can solve the problems of increasing the cross-sectional area of ​​the antenna, increasing the difficulty of processing, and product cost, so as to improve the electrical performance, increase the cost of raw materials, and improve the front and rear than the effect

Active Publication Date: 2016-07-27
KUANG CHI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the size of the reflector will increase the cross-sectional area of ​​the antenna accordingly, and i

Method used

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Examples

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Effect test

no. 1 example

[0058] figure 1 is a three-dimensional structure diagram of the antenna of the first embodiment of the present invention. refer to figure 1 As shown, the antenna 10 in this embodiment includes an antenna element 11 , a reflector 12 , a radome 13 and a wave-absorbing material layer 14 .

[0059] The reflection plate 12 has a bottom plate 12a, a first side plate 12b, and a second side plate 12c. The first side plate 12b is opposite to the second side plate 12c. The reflecting plate 12 may also have a third side plate and a fourth side plate (not shown in the figure). The third side board is opposite to the fourth side board. The third side plate is adjacent to the first side plate 12b and the second side plate 12c, and the fourth side plate is also adjacent to the first side plate 12b and the second side plate 12c. As an example, the first side panel 12b and the second side panel 12c may be in the form of a regular rectangle, and the third side panel and the fourth side pan...

no. 2 example

[0070] figure 2 is a three-dimensional structure diagram of the antenna of the second embodiment of the present invention. refer to figure 2 As shown, the antenna 20 in this embodiment includes an antenna vibrator 21 , a reflector 22 , a radome 23 and a wave-absorbing material layer 24 .

[0071] The reflection plate 22 has a bottom plate 22a, a first side plate 22b, and a second side plate 22c. The first side plate 22b is opposite to the second side plate 22c. The reflecting plate 22 may also have a third side plate and a fourth side plate (not shown in the figure). The third side board is opposite to the fourth side board. The third side plate is adjacent to the first side plate 22b and the second side plate 22c, and the fourth side plate is also adjacent to the first side plate 22b and the second side plate 22c. As an example, the first side panel 22b and the second side panel 22c may be in the shape of a regular rectangle, and the third side panel and the fourth sid...

no. 3 example

[0080] image 3 is a three-dimensional structure diagram of the antenna of the third embodiment of the present invention. refer to image 3 As shown, the antenna 30 in this embodiment includes an antenna vibrator 31 , a reflector 32 , a radome 33 and a wave-absorbing material layer 34 .

[0081] The reflection plate 32 has a bottom plate 32a, a first side plate 32b, and a second side plate 32c. The first side plate 32b is opposite to the second side plate 32c. The reflecting plate 32 may also have a third side plate and a fourth side plate (not shown in the figure). The third side board is opposite to the fourth side board. The third side plate is adjacent to the first side plate 32b and the second side plate 32c, and the fourth side plate is also adjacent to the first side plate 32b and the second side plate 32c. As an example, the first side panel 32b and the second side panel 32c may be in the form of a regular rectangle, and the third side panel and the fourth side pa...

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Abstract

The invention relates to an antenna. By the antenna, the front-to-back ratio and the cross polarization isolation can be improved on the condition of no change on a structure of a reflection plate. The antenna comprises an antenna oscillator and the reflection plate, wherein the antenna oscillator is arranged on the reflection plate, the antenna also comprises a wave absorption material layer, and the wave absorption material layer is arranged on one side of the outer surface, departing from the antenna oscillator, of the reflection plate.

Description

technical field [0001] The invention relates to the field of antennas, in particular to an antenna with improved electrical performance. Background technique [0002] Antenna-to-front ratio and cross-polarization are important parameters to measure antenna performance. The front-to-back ratio of the antenna refers to the ratio of the power flux density in the maximum radiation direction (specified as 0°) of the main lobe in the antenna pattern to the maximum power flux density near the opposite direction (specified in the range of 180°±20°). It shows how well the antenna suppresses the back lobe, and the low front-to-back ratio of the antenna will cause interference in the area on the back of the antenna. The cross-polarization of the antenna means that the electric field vector of the antenna radiation far field has a component in the direction orthogonal to the main polarization direction. [0003] In the prior art, in order to achieve the effect of improving the front-t...

Claims

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Application Information

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IPC IPC(8): H01Q17/00H01Q19/17H01Q21/00
CPCH01Q17/00H01Q19/17H01Q21/00H01Q15/0086H01Q17/001H01Q21/065H01Q21/24H01Q1/528H01Q25/001H01Q17/004H01Q1/246H01Q1/42H01Q19/10
Inventor 不公告发明人
Owner KUANG CHI INST OF ADVANCED TECH
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