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实用新型
CN204408343U 无线信号延长器 有权

无线信号延长器
摘要：
本申请涉及一种无线信号延长器，包括信号处理电路和供电电源电路，所述信号处理电路包括微控单元MCU，在微控单元MCU上连接有信号处理电路和信号传输电路，所述信号处理电路包括RF芯片（射频收发芯片），RF芯片与微控单元MCU电路相连，在RF芯片后顺次连接有RF功率放大器和低频窄带带通滤波器，在低频窄带带通滤波器上装设有信号收发天线。所述信号传输电路包括与微控单元电路相连的光电隔离电路，在光电隔离电路后接RS485接口电路，RS485接口电路与用户终端相连。由于实行上述技术方案，本申请可增强无线信号，提高微功率无线信号覆盖范围。
摘要（英）：

The utility model relates to a wireless signal extender. The wireless signal extender comprises a signal processing circuit and a power supply source circuit. The signal processing circuit comprises a micro control unit (MCU), the MCU is connected with the signal processing circuit and a signal transmission circuit, the signal processing circuit comprises an RF chip (radio frequency transceiving chip), the RF chip is connected with the MCU in a circuit, an RF power amplifier and a low-frequency narrowband band pass filter are sequentially connected after the RF chip, and the low-frequency narrowband band pass filter is provided with a signal transceiving antenna. The signal transmission circuit comprises a photoelectric isolation circuit connected with the MCU, an RS485 interface circuit is connected after the photoelectric isolation circuit, and the RS485 interface circuit is connected with a user terminal. By applying the technical scheme provided by the utility model, the wireless signal extender can enhance wireless signals and enlarges the coverage scope of micropower wireless signals.

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