Tuning method for a contactless communication module, contactless communication module and device
By adjusting the induced voltage of the induction coil through a dynamic matching circuit unit, the problem of resonant frequency deviation of the contactless communication module in conductive or magnetic environments is solved, achieving stable communication in interference environments and reducing tuning costs.
Patent Information
- Application Number
- CN202610613943.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
The resonant frequency of contactless communication modules deviates from the design frequency in conductive or magnetic environments, resulting in low communication efficiency or failure to communicate. Existing technologies cannot adjust the resonant frequency to adapt to the interference environment after product manufacturing.
The induced voltage of the induction coil is adjusted by the adjustable capacitor in the dynamic matching circuit unit to obtain the induced voltage value under different voltages. The voltage corresponding to the maximum induced voltage is selected as the target voltage and applied to the adjustable capacitor to adjust the resonant frequency, thereby meeting the requirements of contactless communication.
This technology enables the adjustment of the resonant frequency without altering the module structure in interference environments, thereby improving communication performance, reducing costs, and ensuring communication stability and anti-interference capabilities.
Smart Images
Figure CN122419508A_ABST