Broadband Intelligent Antenna System Adaptive Switching
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Solution Overview
Problem
Current consumer devices with multiple technology-specific RF antennas face challenges in maintaining optimal signal quality due to factors like Specific Absorption Rate (SAR) and user behavior, leading to reduced wireless connectivity and performance.
Innovation Solution
The Broadband Intelligent Antenna System (BIAS) employs a single wideband antenna design that automatically switches configurations based on various triggers, such as user behavior and environmental factors, to optimize signal quality across multiple wireless technologies without the need for manual user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single wideband antenna is used to replace multiple technology-specific antennas, then device real estate is saved and signal quality is improved, but the system complexity increases due to the need for automatic switching mechanisms
Solution Approach 1:
The patent combines multiple technology-specific antennas into a single wideband antenna structure that can operate across multiple RF bands. This merging reduces the physical space required in the device while maintaining support for various wireless technologies through intelligent switching mechanisms.
Solution Approach 2:
The patent implements dynamic switching capabilities that allow the single wideband antenna to adapt its configuration based on operational requirements. The system automatically adjusts which antenna elements are active depending on the wireless technology in use, signal conditions, and SAR constraints, transforming a static antenna system into a dynamic one.
2Device complexity
If manual antenna switching is required for different wireless configurations, then device complexity is reduced, but ease of operation deteriorates due to user burden
Solution Approach 1:
The patent implements a self-service antenna switching system that automatically monitors SAR levels, detects wireless technology requirements, and switches between antenna configurations without user intervention. The system serves itself by making intelligent decisions about antenna configuration based on real-time conditions, eliminating the need for manual user operation.
Solution Approach 2:
The patent incorporates feedback mechanisms where the system continuously monitors operational parameters such as SAR levels, signal quality, and wireless technology in use. This feedback drives automatic antenna switching decisions, creating a closed-loop system that adapts to changing conditions without requiring user input.
3Power
If maximum power is transmitted by antennas, then wireless connectivity performance is improved, but SAR increases causing health concerns and regulatory issues
Solution Approach 1:
The patent segments the single wideband antenna into multiple antenna elements that can be independently controlled and switched. By dividing the antenna system into separable elements, the patent can activate only the necessary segments for each wireless technology, reducing overall power transmission and SAR exposure while maintaining connectivity performance.
Solution Approach 2:
The patent converts the harmful effect of high SAR into a beneficial switching mechanism. When SAR levels become excessive, the system automatically switches to alternative antenna elements or configurations, transforming the SAR constraint into a trigger for intelligent antenna management that maintains performance while protecting user health.
Data Source
AI summary
A computing device with a Broadband Intelligent Antenna System (BIAS) that supports a broadband antenna design within the device. Each broadband antenna operates over a plurality of Radio Frequency (RF) bands to cover multiple different wireless technologies with a single antenna. The BIAS may continually monitor multiple triggers capable of affecting the signal quality of the wideband antennas and may automatically switch the active antennas accordingly to select an operating configuration that provides a higher signal quality of the active antennas. Triggers may be generated when, for example, one or more antennas are being blocked by a user, there is a change in the orientation of the device, a source of electrical noise is detected, unacceptable Specific Absorption Rate (SAR) proximity is detected, and so on. The trigger-based adaptive switching from one active antenna to the other may substantially improve the overall signal quality for the multiple wireless technologies supported by the device.