Dual antenna receiving circuit of a tire pressure sensor
By employing a dual-antenna receiving circuit design in the tire pressure sensor, and utilizing the spatial uncorrelation of signals and the comparison output module to select the optimal signal path, the problems of signal attenuation and susceptibility to interference in the tire pressure sensor receiving circuit are solved, resulting in a higher reception success rate and a lower bit error rate.
CN224459789UActive Publication Date: 2026-07-03XIAMEN NANSHAN TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN NANSHAN TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-03
Smart Images
Figure CN224459789U_ABST
Abstract
This utility model relates to the field of receiving circuits, specifically to a dual-antenna receiving circuit for a tire pressure sensor, including an X receiving module, a Y receiving module, and a comparison output module. The X receiving module includes an antenna ANT_X, an X filter unit, and an X RF receiving unit; the X filter unit is electrically connected between the antenna ANT_X and the X RF receiving unit. The Y receiving module includes an antenna ANT_Y, a Y filter unit, and a Y RF receiving unit; the Y filter unit is electrically connected between the antenna ANT_Y and the Y RF receiving unit. The output terminals of the X RF receiving unit and the Y RF receiving unit are electrically connected to the first and second input terminals of the comparison output module, respectively. The comparison output module compares the output voltages of the X receiving module and the Y receiving module, connects the antenna path with the optimal received signal strength to the MCU, effectively improving the reception success rate and reducing the bit error rate and signal interruption probability.
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