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Near field communication (NFC) antenna

A near-field communication antenna and antenna technology, applied in the field of communication, can solve the problems of high antenna manufacturing cost, large antenna area, and unfavorable promotion and use of mobile devices.

Active Publication Date: 2016-07-06
广州市城域信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among many communication antennas, the NFC antenna has a large antenna area because of its low operating frequency, which is often the largest antenna in communication equipment, so the production cost of this type of antenna is relatively high, which is not conducive to the promotion of mobile devices. use

Method used

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Embodiment Construction

[0010] The technical characteristics of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] The invention is an NFC near-field communication antenna, which includes an antenna substrate, a baseband antenna I is arranged on the upper surface of the antenna substrate, and a baseband antenna II is arranged on the lower surface of the antenna substrate; the baseband antenna I includes an antenna loop I, an antenna loop Ⅱ and antenna loop Ⅲ, baseband antenna Ⅱ includes antenna loop Ⅳ and antenna loop Ⅴ, antenna loop Ⅰ, antenna loop Ⅱ, antenna loop Ⅲ, antenna loop Ⅳ and antenna loop Ⅴ are circular patch antennas with the same width, the antenna loop Ⅰ. The line connecting the centers of antenna ring II, antenna ring III, antenna ring IV and antenna ring V is perpendicular to the antenna substrate; the diameter of the outer edge of the antenna ring II is 5 / 7 of the diameter of the outer edge of the ante...

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Abstract

The invention discloses a near field communication (NFC) antenna. The NFC antenna comprises an antenna substrate, wherein the upper surface of the antenna substrate is provided with a baseband antenna I, and the lower surface of the antenna substrate is provided with a baseband antenna II; the baseband antenna I comprises an antenna ring I, an antenna ring II and an antenna ring III, the baseband antenna II comprises an antenna ring IV and an antenna ring V, the antenna ring I, the antenna ring II, the antenna ring III, the antenna ring IV and the antenna ring V are circular patch antennas identical in width, and a connection line of the circle centers of the antenna ring I, the antenna ring II, the antenna ring III, the antenna ring IV and the antenna ring V is perpendicular to the antenna substrate. The NFC antenna has the advantages that the disadvantages of the prior art can be overcome, and the structure design is reasonable and novel.

Description

technical field [0001] The invention relates to an NFC near-field communication antenna, which belongs to the field of communication. Background technique [0002] In recent years, with the continuous promotion and use of NFC systems, in order to communicate between mobile electronic devices or between mobile electronic devices and basic card reading devices, various devices, especially handheld mobile electronic devices, are equipped with communication antennas for NFC systems. Existing NFC antennas are mostly assembled inside the housing of the mobile device. Among many communication antennas, the NFC antenna has a relatively large antenna area because of its low operating frequency, which is often the largest antenna in communication equipment, so the production cost of this type of antenna is relatively high, which is not conducive to the promotion of mobile devices. use. How to reduce the size of the antenna, ultimately reduce the production cost of the antenna, and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q7/00
CPCH01Q1/38H01Q7/00
Inventor 张志海
Owner 广州市城域信息科技有限公司