Communication module and vehicle

By introducing a bandpass structure into the vehicle-mounted ETC antenna module, the problem of damaged signal transmission and external interference in the antenna under glass and other media is solved, and the stability of signal communication and the success of ETC transactions are achieved.

CN222673295UActive Publication Date: 2025-03-25XIAOMI EV TECH CO LTD
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Patent Information

Application Number
CN202421453857.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-24
Publication Date
2025-03-25
Estimated Expiration
2034-06-24

AI Technical Summary

Technical Problem

The signal transmission of the vehicle-mounted ETC antenna is damaged under the obstruction of glass, coating, plastic parts and other media, and is easily disturbed by external signals, resulting in the failure of ETC transactions.

Method used

A communication module is designed, including an antenna, a dielectric layer and a bandpass structure. The bandpass structure is arranged outside the dielectric layer and has magnetic conductivity, which is used to enhance the gain of the antenna and shield external interference.

Benefits of technology

Through the fusion design with the penetrating medium and the secondary adjustment of the transmitted beam, the gain and coverage of the antenna are improved, the stability of signal communication is ensured, and ETC transaction failure is avoided.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a communication module and a vehicle, comprising an antenna, a dielectric layer and a band-pass structure, the dielectric layer is arranged at the outer side of the antenna, the band-pass structure is arranged at the dielectric layer and is arranged opposite to the antenna, the band-pass structure has magnetic conductivity, and the band-pass structure is arranged at the outer side of the antenna. And the band-pass structure is used for enhancing the gain of the antenna and / or shielding external out-of-band interference. According to the communication module provided by the utility model, the fusion design with the penetrating medium and the secondary adjustment of the transmission wave beam are realized, the gain of the antenna is improved, and the coverage area of the antenna is also improved, so that the stability of signal communication is ensured, and the situation that communication transactions such as ETC (Electronic Toll Collection) and the like fail is avoided.
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