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A radio frequency front-end circuit and radio frequency tag circuit

A radio frequency front-end and circuit technology, applied in the field of radio frequency identification, can solve the problems of long working distance, high accuracy and large size of active tags, and achieve the effect of improving hardware performance, reducing impact and high conversion efficiency

Active Publication Date: 2022-04-26
SHANGHAI AVIATION PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The active tag itself has a power supply module inside, which meets the working requirements of the overall tag through the power supply module, and does not require external additional energy. The active tag has a very long working distance and high accuracy. At the same time, it can support the consumption of complex algorithm structures and is safe. High, but its size is large and the cost is high, and it is generally used in environments with special needs

Method used

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  • A radio frequency front-end circuit and radio frequency tag circuit
  • A radio frequency front-end circuit and radio frequency tag circuit
  • A radio frequency front-end circuit and radio frequency tag circuit

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] It should be noted that certain names are used in the specification and claims to refer to specific components. It should be understood that those skilled in the art may use different names to refer to the same component. The specification and claims of the present application do not use the difference in name as a way to distinguish components, but use the substantial difference in function of components as a criterion for distinguishing components. A...

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Abstract

The invention relates to the technical field of radio frequency identification, and discloses a radio frequency front-end circuit and a radio frequency label circuit, the front-end circuit includes a rectifier circuit, a demodulation circuit, a modulation circuit and an impedance matching circuit, and the radio frequency label circuit includes an antenna module, an analog front-end module, digital baseband module, memory module, and the radio frequency front-end module. The radio frequency front-end circuit of the present invention can realize high energy conversion efficiency, effectively reduce circuit power consumption, effectively realize stable output, improve the application distance of radio frequency identification, reduce the influence of environmental factors on the circuit, and enhance the efficiency of radio frequency identification from the circuit level stability.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification, in particular to a radio frequency front-end circuit and a radio frequency tag circuit. Background technique [0002] Radio Frequency Identification (RFID) is an important technology of the Internet of Things. It is a wireless communication technology that can identify specific targets and read and write related data through radio signals without the need to establish mechanical or optical contact between the identification system and specific targets. The advantage is non-contact identification, which can penetrate snow, fog, ice, paint, dirt and harsh environments where barcodes cannot be used to read labels (commonly known as cards such as bank cards, bus cards, etc.), and the reading speed is extremely fast, and in most cases it is not to 100 milliseconds. Radio signals transmit data from a tag attached to an item through an electromagnetic field tuned to a radio freq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
CPCG06K7/10297
Inventor 吴新胜
Owner SHANGHAI AVIATION PRINTING CO LTD
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