Near-field communication antenna

A near-field communication antenna and near-field communication technology, applied in the field of antennas, can solve the problems of large antenna volume, low near-field electric field strength of radiators, and inability to wirelessly identify near-field communication, etc. strong effect

Inactive Publication Date: 2016-06-22
AMBIT MICROSYSTEMS (SHANGHAI) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the microstrip antenna (patchantenna) is generally composed of a radiator, a reflector, and a wire connector combined inside the product casing. The near-field electric field strength of the radiator is not high, and it cannot be used for wireless identification of near-field communication. Moreover, the antenna resonance length of the general microstrip line antenna is greater than half of the antenna signal wavelength, and the volume occupied by the antenna is also relatively large, which is not conducive to the application in light, thin and short communication products.

Method used

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Embodiment Construction

[0036] Please also refer to figure 1 and figure 2 , figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the near-field communication antenna of the present invention, figure 2 It is an exploded schematic diagram of the structure of the first embodiment of the near field communication antenna of the present invention.

[0037] The near-field communication antenna designed by the present invention is used for near-field communication. The near-field communication antenna includes a radiation part, a ground part G, a short-circuit part and a feed-in part I.

[0038] Wherein, the radiating portion includes a first radiating portion R1 and a second radiating portion R2. The ground part G is located on the first plane L11 of the substrate L1, and the radiation part is located on the plane L2 parallel to the first plane L11, that is, both the first radiation part R1 and the second radiation part R2 are located on the plane L2 parallel...

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Abstract

The invention relates to a near-field communication antenna. The near-field communication antenna is used for performing near-field communication. The near-field communication antenna includes a grounding part, radiation parts, short-circuit parts and a feed-in part; the grounding part is located at a first plane of a substrate; a plane where the radiation parts is located is parallel to the first plane; the radiation parts include a first radiation part and a second radiation part; one ends of each of short-circuit parts are connected with the grounding part, and the other ends of the short-circuit parts are connected with the radiation parts; the short-circuit parts are used for adjusting the resonance frequency of the near-field communication antenna so that the size of the near-field communication antenna can be decreased; the feed-in part is connected with the radiation parts and is used for feeding in electromagnetic wave signals; and a gap is formed between the first radiation part and the second radiation part, so that the intensity of an electric field in the area of the first radiation part and the second radiation part can be enhanced. The intensity of the near-field electric field of the near-field communication antenna is high, and the size of the antenna is small, and the antenna is suitable for the design of thin and small products.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a near-field communication antenna. Background technique [0002] The near field referred to in the communication field refers to an electromagnetic field within a range (or wavelength order) less than 1 wavelength. At present, the microstrip antenna (patchantenna) is generally composed of a radiator, a reflector, and a wire connector combined inside the product casing. The near-field electric field strength of the radiator is not high, and it cannot be used for wireless identification of near-field communication. Moreover, the antenna resonance length of a general microstrip line antenna is greater than half of the antenna signal wavelength, and the volume occupied by the antenna is also relatively large, which is not conducive to application in light, thin and short communication products. Contents of the invention [0003] In view of this, it is necessary to provide a near-field com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50
Inventor 翁崇训
Owner AMBIT MICROSYSTEMS (SHANGHAI) LTD
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