Gap-Coupled Antenna Assembly for Compact Multi-Band Devices
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Solution Overview
Problem
The challenge is to improve communication quality in electronic devices while simultaneously facilitating their miniaturization, as existing technologies often require multiple antenna modules to cover various bands, leading to increased size and complexity.
Innovation Solution
An antenna assembly integrating three antenna elements - a first, second, and third radiator - that are coupled through gaps, allowing them to cover multiple bands such as GPS-L1, Wi-Fi 2.4 GHz, LTE-MHB, and NR-MHB, reducing the overall size and complexity by integrating these functions into a single module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna modules are used to cover various bands, then communication quality is improved, but device size increases
Solution Approach 1:
The patent combines multiple antenna elements (first, second, and third antenna elements) into a single integrated antenna assembly. These antenna elements are arranged in sequence and coupled through gaps, allowing them to share a common space while maintaining independent radiation functions. This merging approach enables the device to cover multiple frequency bands (GPS-L1, Wi-Fi 2.4 GHz, LTE-MHB, NR-MHB) without requiring separate antenna modules, thus improving communication quality while reducing device size.
Solution Approach 2:
The antenna assembly is designed with multi-functional capability where a single integrated structure performs multiple communication functions. The first antenna element covers certain frequency bands, the second antenna element covers GPS-L1 and Wi-Fi 2.4 GHz bands, and the third antenna element covers other bands. This universal design allows one antenna assembly to replace what would traditionally require multiple specialized antenna modules, achieving space efficiency while maintaining comprehensive communication coverage.
2Reliability
If multiple antenna modules are used to cover various bands, then communication quality is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple antenna elements into a unified antenna assembly with a streamlined structure. The antenna elements are arranged in sequence along a trajectory and coupled through gaps, forming a compact integrated unit. This merging reduces the number of separate components, connection interfaces, and mounting structures required, thereby simplifying the overall antenna system while maintaining the capability to cover multiple frequency bands for improved communication quality.
3Volume of moving object
If antenna elements are integrated closer together, then device size is reduced, but signal interference between elements increases
Solution Approach 1:
The antenna elements are arranged in sequence along a trajectory that can be linear, curved, or folded, creating an asymmetric spatial configuration. The gaps between adjacent antenna elements are strategically designed with specific dimensions and orientations. This asymmetric arrangement allows the elements to be positioned closely together for space efficiency while maintaining sufficient electromagnetic isolation through the gap structures, thereby reducing signal interference between elements.
Solution Approach 2:
The gaps between adjacent antenna elements serve as intermediary structures that provide both mechanical coupling and electromagnetic isolation. These gaps are designed with specific dimensions and can be filled with different materials or left as air gaps, acting as mediators that allow the antenna elements to be closely integrated while preventing excessive signal coupling and interference between them.
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 integrated antenna assembly enhances communication quality by covering a wide bandwidth and reduces the overall size of the electronic device, facilitating miniaturization and improving functional integration.
Implementation Method 1
At least part of the second radiator is configured to be coupled to the first radiator through the first gap. At least part of the third radiator is configured to be coupled to the second radiator through the second gap.
Data Source
AI summary
An antenna assembly and an electronic device are provided in the disclosure. The antenna assembly includes a first antenna element, a second antenna element, and a third antenna element. The first antenna element includes a first radiator. The second antenna element includes a second radiator. A first gap is defined between one end of the second radiator and one end of the first radiator, and at least part of the second radiator is configured to be coupled to the first radiator through the first gap. The third antenna element includes a third radiator. A second gap is defined between the third radiator and the other end of the second radiator, and at least part of the third radiator is configured to be coupled to the second radiator through the second gap.