An omni-directional shielded antenna structure and antenna

Abstract

The invention discloses an antenna structure with omnidirectional shielding, which includes a circuit board for the antenna, and the circuit board includes an insulating layer, circuit layers arranged on both sides of the insulating layer, and covering films respectively arranged on the surface of each circuit layer , also includes a shielding film, the shielding film is divided into an upper shielding film and a lower shielding film, the upper shielding film is attached to the surface of the covering film on one side, and the lower shielding film is attached to the surface of the covering film on the other side; wherein, the The shielding film comprises a protective layer, an insulating layer, a metal shielding layer and a conductive layer, the insulating layer is arranged on the surface of the protective layer, the metal shielding layer is arranged on the surface of the insulating layer, the conductive layer is arranged on the surface of the metal shielding layer, the The insulating layer is made of vinyl, and the metal shielding layer includes a first metal shielding layer formed by sputtering and a second metal shielding layer formed by electroplating. The omnidirectional shielding antenna structure provided by the invention has good electromagnetic shielding performance and stable structure.

Description

technical field [0001] The invention relates to the technical field of shielding films, in particular to an omnidirectional shielding antenna structure and antenna. Background technique [0002] With the development of communication technology, 5G communication technology has gradually matured. In 5G communication, in order to improve the transmission speed, 5G communication uses high-frequency electromagnetic waves for signal transmission, and the transmission speed has been significantly improved. The high-frequency band of commercial 5G will use the 28GHz frequency band and the 60GHz frequency band. The wavelengths of the 28GHz frequency band and the 60GHz frequency band are millimeter-level, that is, millimeter waves. [0003] In order to eliminate external interference electromagnetic signals, the antenna of 5G communication products needs to perform electromagnetic shielding on the circuit board transmitted by the antenna to prevent other components from interfering wi...

AI Technical Summary

Problems solved by technology

[0003] In order to eliminate external interference electromagnetic signals, the antenna of 5G communication products needs to carry out electromagnetic shielding treatment on the circuit board transmitted by the antenna to prevent other components from interfering with the signal transmission of the circuit board. At the same time, it also prevents the antenna circuit board from interfering with other components, but the existing shielding structure has poor effect on millimeter waves, and it is urgent to solve the electromagnetic shielding problem of the antenna structure

Since the wave band of 5G communication products is millimeter wave, the existing electromagnetic wave shielding film has poor shielding effect, and the existing full-covering method wastes materials, and the structural stability is poor, and it is prone to breakage at corners and steps

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