Scattering film and electronic equipment

Abstract

The invention discloses a scattering film and electronic equipment. The scattering film comprises a scattering layer, an impedance gradient layer and a protection layer which are stacked in sequence along the stacking direction, the scattering layer is provided with a scattering structure for electromagnetic waves to pass through, so that the electromagnetic waves are scattered around after passing through the scattering structure, the spatial range of electromagnetic wave emission is enlarged, therefore, the electromagnetic wave divergence function is realized, and communication blind areas are avoided as far as possible. The impedance gradient layer is arranged between the scattering layer and the protection layer, and the impedance of the impedance gradient layer in the stacking direction is gradually changed from the impedance of the scattering structure to the impedance of the protection layer, so that the impedance abrupt change of the interface of the scattering structure and the protection layer is eliminated, and the energy loss in the process that electromagnetic waves penetrate through the scattering film is reduced, and the signal propagation distance and the signal transmission quality are improved.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to a scattering film and electronic equipment. Background technique [0002] Electromagnetic wave communication is communication using electromagnetic waves with wavelengths between 0.1 millimeters and 1 meter. The frequency range corresponding to the electromagnetic wave in this wavelength band is 300MHz (0.3GHz)-3THz. Different from modern communication network transmission methods such as coaxial cable communication, optical fiber communication and satellite communication, electromagnetic wave communication uses electromagnetic waves directly as the medium for communication, and does not require a solid medium. Electromagnetic waves can be used to transmit when there is an obstacle. [0003] In the process of electromagnetic wave transmission, the loss of energy directly affects the distance of signal propagation and the quality of transmitted signals. When the...

AI Technical Summary

Problems solved by technology

Due to the reflection of part of the electromagnetic wave, the electromagnetic energy along the propagation direction will be correspondingly lost, seriously affecting the distance of signal propagation and the quality of the transmitted signal.

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