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Multiple-input-and-output antenna

A multi-input, antenna technology, applied in the direction of antenna, antenna coupling, resonant antenna, etc., can solve the problems that do not conform to the development trend of antenna design and the difficulty of antenna isolation

Inactive Publication Date: 2012-10-31
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the trend of antenna design is light and thin, and the distance between antennas is too close in the case of smaller and smaller spaces, which makes it difficult to improve the isolation between antennas. In order to improve the isolation in the prior art, Generally, the method of adding slots or using the ground part to divide the two antennas, but the above two methods will increase the area of ​​the antenna, which is not in line with the development trend of today's antenna design

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Embodiment Construction

[0052] Please also see figure 1 and figure 2 , which are schematic views of the front and back of the first MIMO antenna 20 in an embodiment of the present invention, respectively.

[0053] In this embodiment, the first MIMO antenna 20 is disposed on the substrate 10 . Substrate 10 is a printed circuit board, which includes a first surface 102 ( figure 1 shown) and the second surface 104 opposite to the first surface 102 ( figure 2 shown). The first multiple-input-output antenna 20 includes a first antenna 22 and a second antenna 24 arranged axially symmetrically, a first coupling portion 26 and a ground portion 28 .

[0054] The first antenna 22 includes a feeding part 221 , a matching part 223 and a radiator 225 . The radiator 225 includes a first radiator 225a, a second radiator 225b and a third radiator 225c. In this embodiment, since the second antenna 24 and the first antenna 22 are symmetrical to each other, only the structure of the first antenna 22 will be des...

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Abstract

The invention relates to a multiple-input-and-output antenna. The multiple-input-and-output antenna is arranged on a base plate, and the base plate comprises a first surface and a second surface arranged opposite to the first surface. The multiple-input-and-output antenna comprises a first antenna and a second antenna which are arranged in axial symmetry, a coupling part and an earthing part, wherein each antenna respectively comprises a feed-in part, a radiating body and a matching part; the feed-in part feeds in electromagnetic wave signals; the radiating body radiates the electromagnetic wave signals and is in a winding shape, and the length of winding is equal to a quarter of the wavelength of the electromagnetic wave signals radiated by the radiating body; the matching part matches the impedance of the multiple-input-and-output antenna; the coupling part is arranged between the first antenna and the second antenna and is a winding shape, and the length of winding is equal to a half of the wavelength of the electromagnetic wave signals radiated by the radiating body; and the earthing part is arranged on the first surface and the second surface. The multiple-input-and-output antenna provided by the invention can work at the frequency band of 2.5-2.6GHz, and has the advantages of small area, low cost and effectively improved isolation.

Description

technical field [0001] The invention relates to an antenna, in particular to a multiple input and output antenna. Background technique [0002] At present, the trend of antenna design is light and thin, and the distance between antennas is too close in the case of smaller and smaller spaces, which makes it difficult to improve the isolation between antennas. In order to improve the isolation in the prior art, Generally, the method of adding slots or using the ground part to divide the two antennas is adopted, but the above two methods will increase the area of ​​the antenna, which is not in line with the development trend of antenna design today. Therefore, how to design antennas with a smaller area and effectively improve the isolation between antennas so that they have excellent radiation performance is an urgent need for improvement in the industry. Contents of the invention [0003] In view of this, it is necessary to provide a multiple input and output antenna, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/52H01Q1/38H01Q21/00H01Q5/15
CPCH01Q21/28H01Q1/243H01Q9/42H01Q1/38H01Q1/521
Inventor 潘君睿
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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