Multi-Antenna Module Spatial Arrangement for Signal Isolation
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Solution Overview
Problem
Integrating multiple wireless communication technologies in a single electronic device poses challenges due to signal interference and the need to optimize overall wireless communication performance while meeting safety specifications, such as specific absorption rate (SAR) requirements.
Innovation Solution
The configuration of multiple antennas within a housing, where each operates at distinct frequency bands and is positioned based on characteristics like frequency range, radiation field patterns, and polarization directions to minimize interference and ensure comprehensive coverage, including non-overlapping field patterns that are complementary, akin to a 360-degree omnidirectional antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are integrated in one single electronic device, then diversified user application requirements are met, but signal interference among antennas occurs
Solution Approach 1:
The patent divides the antenna system into multiple independent antenna modules, each operating at different frequency bands (first frequency band, second frequency band, third frequency band). By segmenting the antenna functions and placing them in separate spatial locations within the housing, the patent reduces mutual interference while maintaining diverse wireless communication capabilities.
Solution Approach 2:
The patent assigns different operational characteristics to different antenna locations. Each antenna is positioned according to its specific frequency band requirements and radiation patterns, with the third antenna specifically placed between the first and second antennas to optimize signal isolation. This local optimization of antenna positions and orientations minimizes interference while maximizing overall system performance.
2Adaptability or versatility
If multiple antennas are integrated in one single electronic device, then diversified wireless communication technologies are supported, but overall wireless communication performance optimization becomes complex
Solution Approach 1:
The patent creates a universal antenna module design that can support multiple wireless communication technologies (Wi-Fi, Bluetooth, GPS, LTE, 5G) through a standardized multi-antenna architecture. The modular design with distinct frequency bands and radiation patterns allows the same housing structure to accommodate various communication protocols without requiring separate optimization for each technology.
Solution Approach 2:
The patent resolves configuration complexity by adding spatial dimensionality to the antenna system. Instead of optimizing a single antenna for all frequencies, the patent uses three antennas positioned in three-dimensional space with different orientations and radiation patterns. This spatial arrangement naturally separates signal paths and reduces interference without complex electronic control.
3Reliability
If antennas are positioned to maximize coverage, then wireless communication performance is improved, but RF energy emission may exceed safety specifications
Solution Approach 1:
The patent segments the RF energy emission across three different antennas operating at different frequency bands. By distributing the total communication load across multiple antennas with different radiation patterns and orientations, the peak RF energy emission in any single direction is reduced, helping to comply with SAR (Specific Absorption Rate) safety specifications while maintaining overall communication reliability.
Solution Approach 2:
The patent employs asymmetric antenna positioning and orientation within the housing. The third antenna is specifically positioned between the first and second antennas with a different orientation, creating asymmetric radiation patterns that distribute RF energy more evenly throughout space rather than concentrating it in specific directions. This asymmetric configuration improves coverage while reducing peak exposure levels.
Data Source
AI summary
The present invention discloses an antenna module and an electronic device. The antenna module is used in the electronic device. The electronic device includes a first housing. The antenna module includes a first antenna, a second antenna and a third antenna. The first antenna is disposed in the first housing and operates at a first frequency band. The second antenna is disposed in the first housing and operates at a second frequency band. The third antenna is disposed in the first housing and is located between the first antenna and the second antenna, and operates at a third frequency band. The first frequency band partially overlaps with the second frequency band, and the third frequency band does not overlap with the first frequency band and the second frequency band.