Shared-Ground Antenna Structure for Multi-Band Terminal Integration
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Solution Overview
Problem
The integration of 5G antenna devices into mobile terminals compatible with cellular or Wi-Fi systems poses a challenge due to space constraints, as existing solutions result in increased terminal size due to the mounting of multiple antennas for different frequency bands.
Innovation Solution
An antenna device configuration that includes a first antenna operating at a 5G frequency and a second antenna operating at a lower frequency, with the latter's ground potential connected to a grounding wire provided at the first antenna, allowing for efficient space utilization by sharing components and reducing physical size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate antenna devices for 5G and cellular/Wi-Fi are mounted, then communication capabilities are improved, but terminal size increases
Solution Approach 1:
The patent combines the grounding structures of multiple antenna devices into a single shared ground electrode. The first antenna device (cellular/Wi-Fi) and second antenna device (5G) both connect to the same ground electrode, merging what would traditionally be separate grounding systems. This reduces the overall space required while maintaining independent communication capabilities for both frequency bands.
Solution Approach 2:
The ground electrode serves multiple functions simultaneously: it provides the ground reference for the cellular/Wi-Fi antenna device and the ground reference for the 5G antenna device. This multi-functional design allows a single component to support multiple communication systems, reducing the total number of components needed and thereby reducing terminal size.
2Adaptability or versatility
If multiple antenna devices are mounted for different frequency bands, then communication versatility is improved, but space efficiency deteriorates
Solution Approach 1:
The patent merges the grounding areas of multiple antenna devices into a single shared ground electrode structure. By combining the ground references for cellular/Wi-Fi and 5G antennas into one physical component, the patent reduces the total area occupied by antenna devices while maintaining support for multiple frequency bands and communication protocols.
Solution Approach 2:
The ground electrode is designed as a universal grounding structure that serves both the cellular/Wi-Fi antenna device and the 5G antenna device. This universal component approach allows the system to support diverse communication functions without proportionally increasing the area required, thereby improving space efficiency.
Data Source
AI summary
To optimize space efficiency in mounting a plurality of antennas compatible with different frequencies.According to the present disclosure, provided is an antenna device including a first antenna that operates at a first frequency, and a second antenna that is provided adjacent to the first antenna, operates at a second frequency lower than the first frequency, and has a ground potential connected to a grounding wire provided at the first antenna.