Smart Watch Antenna Relocation to Reduce Head Radiation
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Solution Overview
Problem
Smart watches for children emit excessive radiation towards the head when making calls due to antenna placement, exceeding safe levels and posing health concerns.
Innovation Solution
A smart watch design featuring a conductive connecting part integrated with the watchband, serving as both a connector and an antenna, positioned to face away from the head, reducing direct electromagnetic wave exposure and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the antenna is arranged in the dial, then the communication function is achieved, but the radiation to the head exceeds safe levels
Solution Approach 1:
The antenna is extracted from the dial and relocated to the watchband connector. This separation removes the radiation source away from the head area, reducing electromagnetic exposure to safe levels while preserving the communication function through the relocated antenna structure.
Solution Approach 2:
The antenna placement transitions from a two-dimensional dial surface to a three-dimensional watchband connector structure. This spatial repositioning in another dimension (from face to band) naturally directs radiation away from the head while maintaining communication capability.
2Object-affected harmful factors
If separate antenna and connector components are used, then the antenna can be optimized for radiation pattern, but the device complexity and production cost increase
Solution Approach 1:
The antenna and watchband connector are merged into a single integrated conductive connecting part. This combination reduces the number of components and simplifies production while the strategic design of the integrated structure maintains effective radiation pattern control away from the head.
Solution Approach 2:
The conductive connecting part serves dual functions: as a mechanical connector for the watchband and as an antenna for communication. This multi-functionality eliminates the need for separate components, reducing device complexity and production cost while achieving the radiation control objective.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces radiation exposure to the child's head by directing electromagnetic waves away from the head and lowers production costs through a dual-function watchband connector and antenna design.
Implementation Method 1
the conductive connecting part has a non-closed structure, and serves as an antenna that is connected with the RF transceiver circuit via the feeder... serves as an antenna that is connected with the RF transceiver circuit via the feeder, and serves as a first watchband connector that connects the first watchband and the second watchband
Data Source
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AI summary
The present invention provides a smart watch. The smart watch comprises: a dial, a first watchband and a second watchband. The first watchband and the second watchband are connected respectively with two ends of the dial. An RF (Radio Frequency) transceiver circuit is built in the dial. The smart watch further comprises: a feeder arranged on a surface of the first watchband or arranged inside the first watchband, and a conductive connecting part connected to an end of the first watchband. The conductive connecting part has a non-closed structure, serves as an antenna that is connected with the RF transceiver circuit via the feeder, and serves as a watchband connector that connects the first watchband and the second watchband. In this solution, the conductive connecting part is used as not only the watchband connector but also the antenna, thereby enabling the antenna to face a direction opposite to the head. As such, direct radiation of electromagnetic waves to a head is reduced for the waves are blocked by an arm and the dial, and production cost of the antenna is reduced. Therefore, the smart watch is high in practicality.