Binding Member Antenna Layout for Wearable Space Constraints
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Solution Overview
Problem
Wearable electronic devices face challenges in mounting antennas due to limited space, leading to degraded antenna performance as the antenna length is restricted, affecting signal transmission and reception across various bands.
Innovation Solution
Incorporating a binding member with a strap body, an expansion part, and a coupler that electrically connects a second antenna to a first antenna housed in the device, allowing for extended antenna length and improved performance by transmitting signals received through the second antenna to the first antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna is mounted inside the housing of the electronic device, then the device structure is compact and simple, but the antenna length is limited and antenna performance is degraded
Solution Approach 1:
The antenna system is divided into two separate parts: a first antenna mounted inside the housing and a second antenna mounted on the binding member. This segmentation allows each antenna to be optimized for its specific location, with the second antenna on the binding member providing extended length and improved performance without increasing the volume of the main device housing.
2Reliability
If the antenna length is extended to improve signal transmission and reception, then antenna performance is improved, but the mounting space requirement increases
Solution Approach 1:
The binding member is designed to serve multiple functions: it mechanically secures the electronic device to the user's body and simultaneously serves as a mounting structure for the second antenna. This multi-functionality allows the antenna to be extended beyond the device housing without requiring additional dedicated mounting space.
Solution Approach 2:
The antenna system transitions from a two-dimensional layout confined to the device housing to a three-dimensional configuration that extends along the binding member. By utilizing the longitudinal dimension of the binding member, the antenna achieves greater length and improved radiation characteristics without increasing the footprint area of the device itself.
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
This configuration ensures adequate antenna length, enhancing signal transmission and reception capabilities across multiple frequency bands, thereby improving overall antenna performance compared to traditional internal mounting methods.
Implementation Method 1
a coupler electrically connected with the second antenna, provided in at least a portion of the expansion part, and configured to transmit a signal received through the second antenna to the first antenna
Data Source
AI summary
An electronic device is provided and includes a housing including a first antenna, and a binding member configured to be bound to one side of the housing. The binding member includes a strap body, a coupling part formed at one end portion of the strap body and bound to one side of the housing, an expansion part expanded inward from the housing from one end portion of the strap body, and making contact with at least a portion of a rear surface of the housing when bound, a second antenna provided in the strap body, and a coupler electrically connected with the second antenna, provided in at least a portion of the extension part, the coupler being configured to transmit a signal received through the second antenna to the first antenna.