Smart watch and antenna signal processing circuit and method thereof

An antenna signal processing circuit of a smart watch, wherein the antenna signal processing circuit comprises:

• a sensor module, a microprocessor, a switch element and an antenna body;
• the antenna body comprises one signal feed point and at least two grounding points;
• the switch element comprises a controlling end, a movable contact and at least two stationary contacts;
• the signal feed point of the antenna body is connected to a smart watch signal source, each grounding point of the antenna body is connected to one corresponding stationary contact of the switch element, the movable contact of the switch element is grounded, and the microprocessor is respectively connected to the sensor module and the controlling end of the switch element;
• the sensor module sends a detected proximity sensing signal to the microprocessor;
• and
• the microprocessor receives the proximity sensing signal, and obtains a controlling signal, to control the switch element to switch the stationary contact that is connected to the movable contact, to cause the antenna body to switch the grounding point which is grounded.

An antenna signal processing circuit of a smart watch, wherein the antenna signal processing circuit comprises:

• a sensor module, a microprocessor, a switch element and an antenna body;
• the antenna body comprises one grounding point and at least two signal feed points;
• the switch element comprises a controlling end, a movable contact and at least two stationary contacts;
• the grounding point of the antenna body is grounded, each signal feed point of the antenna body is connected to one corresponding stationary contact of the switch element, the movable contact of the switch element is connected to a smart watch signal source, and the microprocessor is respectively connected to the sensor module and the controlling end of the switch element;
• the sensor module sends a detected proximity sensing signal to the microprocessor;
• and
• the microprocessor receives the proximity sensing signal, and obtains a controlling signal, to control the switch element to switch the stationary contact that is connected to the movable contact, to cause the antenna body to switch the signal feed point that is connected to the smart watch signal source.