Plane broadband passive electronic tag

Abstract

The invention relates to the field of radio frequency identification (RFID) and provides a plane broadband passive electronic tag. The tag comprises an antenna, a chip and a substrate, wherein the substrate is rectangular and is used for containing the antenna and the chip; the antenna is matched with the chip; the antenna comprises a rectangular radiation surface and a short-circuit ring; the short-circuit ring is located at the bottom of the substrate; the rectangular radiation surface comprises a rectangular radiation surface obtained by removing a rectangular shape of the short-circuit ring; the chip is located at the place, close to the edge of the substrate, on the short-circuit ring. The plane broadband passive electronic tag which is applied to the surface of an object with a high dielectric constant has a farther reading distance and a wide bandwidth, and has strong applicability; meanwhile, the chip is located at the place close to the edge of the substrate so that information concluding codes, characters and patterns and the like can be conveniently printed on the back surface of the tag and the chip is prevented from being crushed in a printing process; the tag can be conveniently applied to various fields.

Description

Technical field: [0001] The invention relates to a plane broadband passive electronic label, which belongs to the technical field of microwave communication and is applicable to the field of radio frequency identification within the frequency range of 800MHz-1GHz. Background technique: [0002] With the continuous promotion of Internet of Things technology, RFID, as an integral part of it, has also been more and more widely used. In many occasions, RFID tags need to be attached to the surface of objects with high dielectric constant, such as glass surface, ceramic surface, etc., but due to the high dielectric constant of the attachment, ordinary tag antennas are affected by objects with high dielectric constant, and the size is relatively small. Small, narrow bandwidth, low gain. Therefore, it is very important to design a tag antenna that can adapt to the surface of objects with different dielectric constants to facilitate the use of RFID technology. The present invention...

AI Technical Summary

Problems solved by technology

In many occasions, RFID tags need to be attached to the surface of objects with high dielectric constant, such as glass surface, ceramic surface, etc., but due to the high dielectric constant of the attachment, ordinary tag antennas are affected by objects with high dielectric constant, and the size is relatively small. Small, narrow bandwidth, low gain

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