Electronic label antenna

Abstract

The invention relates to the field of E-tag for object identification, in particular to an antenna on the E-tag. The E-tag antenna couples with a reading head antenna in a reading head device to transmit the identification information signals which are contained by the tag circuit; the E-tag antenna is a coil intertwined with a lead, wherein, the coil is a ring shape. As the invention arranges the tag antenna to be the ring shape, under the circumstances that the position holding axis of the antenna coil of reading head equipment for reading the E-tag is parallel to the axis of the tag antenna and keeps a proper distance, the invention can acquire the readability at any direction of the surrounding 360 degrees of the ring-shaped E-tag antenna; when the reading head equipment is fixed, a ring-shaped E-tag code block is sheathed outside a rod object requiring identification, the rod object can get close to the reader at any position in the surroundings to acquire reliable reading results, thus being able to simplify the rob object structure without circumferential directional location of the rod object.

Description

technical field [0001] The invention relates to the field of electronic tags used for object identification, in particular to antennas on the electronic tags. Background technique [0002] Electronic tags are more and more widely used because of their special global unique identity code value characteristics and extremely convenient implementation modes such as passive solutions. Electronic tags usually include electronic tag antennas and tag circuits. Electronic tags are divided into chip electronic tags ( Such as IC type electronic tags) and chipless electronic tags (such as SAW radio frequency tags) two categories. The mainstream of electronic label application is electronic label with chip (IC type electronic label). Most of its label circuits have been integrated into IC to reduce costs, and the passive type (passive type) is the most commonly used. SAW radio frequency tags are also increasingly valued because of their gradual cost reduction and high environmental adap...

AI Technical Summary

Problems solved by technology

This brings inconvenience to the use and management of rod objects. At the same time, the structure of such rod objects is not compact enough, and the use is not convenient enough.

[0006] Another example is the temporary grounding wire plug in the field of microcomputer error prevention for power line systems. The needs of modern digital management of power station users require us to assign an electronic identity to each temporary grounding wire for management. Undoubtedly, passive electronic tags are used as IDs. The code is relatively the best choice, but as a temporary grounding wire, it may generate an instantaneous high current of tens or even hundreds of amperes on the cable when it is used. For the aforementioned solution, if the electronic label is fixed on one side of the cable , the electromagnetic field generated by the instantaneous large current is easy to damage the electronic tag that relies on the IC and the antenna coil

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