Antenna Arrangement for Wireless Communication Reliability
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Solution Overview
Problem
Existing portable electronic devices with wireless communication functions, such as tablet terminals, face challenges in maintaining effective wireless communication performance when held in various orientations or by one or both hands, due to antenna characteristics being compromised by the user's grip.
Innovation Solution
The electronic apparatus employs a specific antenna arrangement where at least one antenna of each wireless communication system is positioned in the center part of a side, and the other antenna is placed further away, with all antennas distributed across two perpendicular sides of the housing to minimize coverage by the user's hands, ensuring consistent performance regardless of orientation or holding state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antennas are arranged in conventional positions (corners or edges), then device complexity is reduced, but antenna characteristics deteriorate when held in various orientations or by one/both hands
Solution Approach 1:
The patent transitions from conventional 2D antenna placement (corners or single edges) to a three-dimensional spatial distribution across two perpendicular sides of the housing. This dimensional expansion allows antennas to be positioned in center parts of perpendicular sides, creating spatial separation that reduces hand coverage interference while maintaining manufacturing feasibility.
Solution Approach 2:
The patent applies local quality by positioning antennas in specific high-value locations (center parts of perpendicular sides) rather than uniform distribution. This targeted placement maximizes the distance from typical hand grip areas while maintaining overall device simplicity and manufacturing ease.
2Area of stationary object
If multiple antennas are placed close together, then device size is reduced, but antenna characteristics deteriorate due to mutual interference and hand coverage
Solution Approach 1:
The patent resolves the area-constraint conflict by utilizing three-dimensional spatial separation. Antennas are distributed across two perpendicular sides in center parts, maximizing separation distance within the housing footprint. This spatial arrangement reduces mutual interference and hand coverage effects without requiring increased device area.
3Reliability
If antennas are positioned in center parts of perpendicular sides, then antenna characteristics are maintained across all orientations and holding states, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies universality by designing an antenna arrangement that functions effectively across all device orientations (portrait/landscape) and holding states (one hand/both hands). The symmetric placement in center parts of perpendicular sides creates a universal solution that maintains performance regardless of how the device is held or oriented, simplifying manufacturing by eliminating orientation-specific adjustments.
Data Source
AI summary
According to one embodiment, an electronic apparatus includes a display device with a display screen, a first wireless communication module, a second wireless communication module, first antennas for the first wireless communication module, and second antennas for the second wireless communication module. The display screen is exposed from a front surface of a housing. At least two of each of the first antennas and the second antennas are disposed in two perpendicular sides of the housing. The two perpendicular sides are peripheral parts of the display screen. One of the first antennas disposed in the two perpendicular sides and one of the second antennas disposed in the two perpendicular sides are disposed in respective center parts of the two perpendicular sides.