Segmented Metal Frame Antennas for 5G NSA Smartphone Layouts
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Solution Overview
Problem
The increasing number of antennas required for 5G communication standards, combined with limited clearance zones in full-screen and curved-screen devices, poses challenges in antenna layout and efficiency, leading to performance issues and increased costs.
Innovation Solution
The metal frame of an electronic device is divided into multiple separate frame segments by gaps, which function as antenna bodies supporting various communication standards, including 5G, LTE, and Wi-Fi. At least three frame segments support the 5G band, with one segment further supporting the LTE band, and other segments positioned on different sides of the metal frame to enhance antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If more antennas are added to support 5G band, then communication standard compatibility is improved, but device complexity increases
Solution Approach 1:
The patent makes the metal frame serve multiple functions: it acts as both the structural frame of the device and as antenna bodies for multiple communication standards (5G, LTE, Wi-Fi). By dividing the frame into segments that can function as different antenna types, the design achieves multi-functionality without adding separate antenna components, thereby improving communication standard compatibility while controlling device complexity
Solution Approach 2:
The metal frame is divided into multiple separate frame segments by gaps, where each segment can function as an independent antenna body. This segmentation allows different portions of the frame to support different communication standards (with at least three segments supporting 5G band and one supporting LTE band), enabling versatile communication capabilities while maintaining a unified structural design
2Area of stationary object
If antennas are arranged inside the device, then clearance zone is reduced, but antenna performance deteriorates and cost increases
Solution Approach 1:
The patent extracts the antenna function from the traditional internal antenna arrangement and integrates it into the metal frame structure. By making the frame segments themselves function as antenna bodies, the design eliminates the need for separate internal antenna components, thereby preserving clearance zone while maintaining or improving antenna performance through the frame's inherent radiation characteristics
3Ease of operation
If metal-framed antenna is adopted, then antenna layout flexibility is improved, but manufacturing precision requirements increase
Solution Approach 1:
The metal frame is divided into multiple separate frame segments by gaps, where each segment can function as an independent antenna body. This segmentation provides layout flexibility for supporting multiple communication standards while the gaps serve functional purposes for antenna operation, reducing the stringency of manufacturing precision requirements compared to continuous frame designs
Data Source
AI summary
An electronic device is provided, which includes a metal frame and multiple radio-frequency sources. The metal is divided into multiple separate frame segments by multiple gaps, and the multiple frame segments are served as antenna bodies and support frequency bands of multiple communication standards. Among the multiple frame segments, at least three frame segments support a 5G band, among the at least three frame segments each supporting the 5G band, at least one frame segment further supports a LMHB of LTE, and among frame segments other than the at least three frame segments each supporting the 5G band, at least one frame segment supports the LMHB of the LTE. The at least one frame segment supporting the LMHB of the LTE among the frame segments other than the at least three frame segments and the at least three frame segments are configured for implementing a 5G NSA communication standard.