Antenna Diversity Switch for Wireless Signal Routing
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Solution Overview
Problem
The increasing demand for wireless devices to handle multiple communication protocols and technologies, such as WWAN, WLAN, and GNSS, leads to implementation complexity and performance degradation due to interference and noise from concurrent signal processing.
Innovation Solution
A wireless device with an antenna diversity switch system that dynamically establishes independent conductive paths between transceivers and multiple antennas, allowing for separate routing of signals across different frequency bands and protocols, using N-plexers and antenna matrix switches to optimize signal processing and minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless signals are processed concurrently, then the wireless device can handle multiple communication protocols and technologies, but interference and noise levels increase resulting in degraded performance
Solution Approach 1:
The patent segments the signal processing paths by establishing separate conductive paths for different wireless signals through the antenna diversity switch. Each signal type (WWAN, WLAN, GNSS) is routed through dedicated paths that prevent mixing and interference, allowing multiple protocols to operate simultaneously without degrading each other's performance
Solution Approach 2:
The antenna diversity switch acts as an intermediary device between the antennas and the transceivers. It dynamically routes signals through selected conductive paths, mediating between multiple communication protocols and preventing interference by ensuring that signals are directed through appropriate, isolated paths based on their type and priority
2Adaptability or versatility
If multiple antennas are used to handle different signals, then signal routing flexibility increases, but device complexity increases due to additional switching and path management
Solution Approach 1:
The antenna diversity switch is designed as a universal routing device that can handle multiple types of wireless signals (WWAN, WLAN, GNSS) through a single multi-port switch structure. This multi-functional approach consolidates what would otherwise require multiple separate switching mechanisms, reducing overall device complexity while maintaining signal routing flexibility
Solution Approach 2:
The system employs dynamic path selection where the antenna diversity switch can reconfigure conductive paths in real-time based on which signals are currently being transmitted or received. This dynamic adaptation allows the system to optimize signal routing without requiring permanent dedicated paths for each signal type, balancing flexibility with complexity management
Data Source
AI summary
A method includes: controllably configuring at least one antenna diversity switch in a wireless device to establish conductive paths between at least one transceiver of the wireless device and multiple antennas each disposed at a respective one of a multiple areas of a housing of the wireless device; and routing signals between the at least one transceiver and the multiple antennas, via the at least one antenna diversity switch, such that a signal is routed to either of at least two of the multiple antennas disposed at a first end area of the multiple areas of the housing of the wireless device or to either of at least two other antennas disposed at a second end area of the multiple areas of the housing of the wireless device.