An Antenna with Reduced Specific Absorption Rate

Abstract

The invention relates to the field of communication, in particular to an antenna capable of reducing the specific absorption rate. The antenna comprises a high-frequency wire 110 arranged on the surface of a circuit board 100, a low-frequency wire 120, a feeding point 130 and a grounding point 140. A first groove 150 is arranged between the feeding point 130 and the grounding point 140, a second groove 160 is arranged between the high-frequency wire 110 and the low-frequency wire 120, the high-frequency wire 110 and the low-frequency wire 120 have a high-low-frequency intersection point arranged at the bottom of the second groove 160, and the circuit board 100 is of a folded structure. By means of the technical scheme, by folding the high-low-frequency intersection place, namely the place where coupling is the strongest, onto the back, antenna hot spots are effectively dispersed, the specific absorption rate of the antenna is reduced, and the specific absorption rate of a tablet personal computer is reduced.

Description

technical field [0001] The invention relates to the communication field, in particular to an antenna for reducing the specific absorption rate. Background technique [0002] The specific absorption rate (Specific Absorption Rate, SAR) means that under the action of an external electromagnetic field, an induced electromagnetic field will be generated in the human body. Since various organs of the human body are lossy media, the electromagnetic field in the body will generate current to absorb and dissipate the electromagnetic energy of the mobile phone. The electromagnetic radiation energy radiated by the antenna is absorbed by the human body and generates heat, which is transmitted through the body's thermoregulatory system. The ratio of electromagnetic radiation energy absorbed or consumed by human tissue per unit mass is called SAR. Generally known as the electromagnetic wave absorption ratio or specific absorption rate, it is the absorption ratio of electromagnetic wave...

AI Technical Summary

Problems solved by technology

In order to achieve a cool, cool, thin effect and good user experience, the thickness of the tablet will become thinner and thinner, so when testing BodySAR, the distance between the rear side on the knee and the body will be very close. Even if the OTA index is reduced, the purpose of reducing the specific absorption rate cannot be achieved, and the specific absorption rate will inevitably exceed the standard

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