Antenna Ground Switching for Compact Multi-Band Electronic Devices
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Solution Overview
Problem
Electronic devices with limited internal space face challenges in forming diverse antenna band frequencies without additional short pins, which restricts their compactness and antenna performance.
Innovation Solution
The integration of a processor-controlled switch system that electrically connects a first mounting unit to ground either directly or through a bead, allowing the electronic device to form various loop structures without an additional short pin, thereby supporting multiple band frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional short pin is added to form diverse antenna band frequencies, then the antenna performance is improved, but the device size increases and compactness is reduced
Solution Approach 1:
The first electronic component is designed to serve dual purposes: its primary function for device operation and its secondary function as a ground connection point for antenna frequency adjustment. By making the electronic component multi-functional, the patent eliminates the need for a separate short pin while maintaining antenna performance across multiple frequency bands.
Solution Approach 2:
The patent combines the ground connection function with the existing first electronic component by providing multiple ground terminals on it. This merging of functions allows the same component to serve both its original purpose and as a means to adjust antenna band frequencies, thereby reducing overall device volume.
2Volume of moving object
If the internal disposition space is limited to maintain compactness, then the device size is reduced, but the installation of additional short pin becomes difficult
Solution Approach 1:
The first electronic component is designed with multiple ground terminals to serve dual purposes: its primary function for device operation and its secondary function as a ground connection point for antenna frequency adjustment. This multi-functionality eliminates the need for separate short pin installation while maintaining manufacturing ease.
3Volume of moving object
If no additional short pin is used to maintain compactness, then the device size is reduced, but the band frequency support is restricted
Solution Approach 1:
The first electronic component is designed to serve dual purposes: its primary function for device operation and its secondary function as a ground connection point for antenna frequency adjustment. By making the electronic component multi-functional, the patent eliminates the need for a separate short pin while maintaining antenna performance across multiple frequency bands.
Solution Approach 2:
The patent implements a switch that can dynamically connect different ground terminals to the feeding unit, allowing the antenna to adaptively support multiple frequency bands. This dynamic switching capability enables frequency band adaptation without adding physical components, resolving the contradiction between compactness and frequency versatility.
4Adaptability or versatility
If a switch system is integrated to control ground connections, then the band frequency support is improved, but the device complexity increases
Solution Approach 1:
The patent implements a switch that can dynamically connect different ground terminals to the feeding unit, allowing the antenna to adaptively support multiple frequency bands. This dynamic switching capability enables frequency band adaptation without adding physical components, resolving the contradiction between compactness and frequency versatility.
Solution Approach 2:
The switch system changes the electrical connection parameters (which ground terminal is connected to the feeding unit) to achieve different frequency bands. By changing connection parameters rather than physical structure, the system achieves frequency adaptability with minimal added complexity.
Data Source
AI summary
An electronic device is provided. The electronic device may include a feeding unit configured to be provided with a feeding signal from a communication circuit of the electronic device, an antenna electrically connected to the feeding unit, a first electronic component disposed in the electronic device, a first mounting unit positioned in a first direction of the feeding unit and including a portion of the first electronic component, disposed near the antenna, a ground configured to provide a reference potential to the feeding unit, a first ground terminal and a second ground terminal, positioned on the first electronic component and included in a circuit configured to electrically connect the ground to the first electronic component, a first bead positioned between the second ground terminal and the first mounting unit, a first switch positioned at a side of the ground to electrically connect the ground to the first ground terminal or electrically connect the ground to the second ground terminal, and at least one processor configured to control an operation of the first switch.