Near field communication device based on SOC (System On Chip)

Abstract

The invention provides a near field communication device based on an SOC (System On Chip). The near field communication device comprises an SOC unit, an electromagnetic composite material antenna and a power module for supplying power to the SOC unit, wherein the SOC unit comprises an MCU (Micro-programmed Control Unit) core processing module and a radio frequency module; a communication port of the MCU core processing module is connected with a communication end of the radio frequency module; and a receiving end and a transmitting end of the radio frequency module are connected with the electromagnetic composite material antenna. According to the near field communication device, the integral space requirements are extremely lowered, the consumption of electric power is reduced, the power amplifier efficiency of the radio frequency is improved by applying the SOC and the power consumption is reduced; the size of the applied electromagnetic composite material antenna is small, the absorbed energy is less, the loss is low and the conversion efficiency of the antenna is improved; and the near field communication device disclosed by the invention has the advantages of low manufacturing cost, strong practical applicability and applicability to various fields.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a short-distance wireless communication device. Background technique [0002] In the field of wireless communication, NFC (Near Field Communication) short-range wireless communication technology has been more and more widely used. This technology was initiated by Philips and jointly promoted by Nokia, Sony and other manufacturers. NFC evolved from the integration of non-contact radio frequency identification and interconnection technologies. It combines inductive card readers, inductive cards and point-to-point functions on a single chip, and can identify and exchange data with compatible devices within a short distance. Compared with traditional WIFI and Bluetooth (BT) designs, which are difficult to modify and upgrade once fixed, and errors cannot be corrected, more flexible design and accuracy can be obtained through NFC technology. [0003] In the current NFC communicatio...

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Problems solved by technology

[0003] In the current NFC communication system, the power amplifier of the traditional radio frequency unit has low efficiency, nonlinearity, large volume and high power consumption, so that the radio frequency unit cannot obtain good performance

At the same time, the traditional antenna design absorbs more energy and produces a larger echo, which makes the antenna conversion efficiency low and the volume larger, which affects the application and maintenance of NFC

Radio frequency and antenna play a key role, but due to the slow development of traditional wireless radio frequency technology, large radio frequency antenna system, high power consumption, maintenance and update problems have seriously hindered the development of wireless broadband communication, and at the same time greatly improved the operator's Operating costs, unable to meet the needs of radio frequency miniaturization and integration, green energy and low power consumption

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