Multi-Band Wireless Transceiver Switching for Low-Loss Signal Paths
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Solution Overview
Problem
Current wireless transceivers are limited in their ability to efficiently operate across multiple frequency bands, particularly in wireless local area networks (WLANs), as they often require separate configurations for different frequency bands, leading to inefficiencies in signal amplification and noise reduction.
Innovation Solution
A wireless transceiver design that includes multiple transmitter/receiver chains configured to handle signals from various frequency bands, with amplifier circuits and switch elements to selectively route signals between antenna nodes and baseband circuitry, enabling operation across multiple frequency bands such as 2.4 GHz, 5 GHz, and 6 GHz, and allowing for dynamic configuration between these bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate configurations are used for different frequency bands, then each band can be optimized independently, but device complexity and signal processing overhead increase
Solution Approach 1:
The patent implements a universal amplifier configuration where a single amplifier circuit can handle multiple frequency bands (2.4 GHz, 5 GHz, 6 GHz) through dynamic switching. The baseband circuitry is configured to work across different frequency bands without requiring separate dedicated amplifiers for each band, reducing device complexity while maintaining optimized signal amplification for each band through software-controlled configuration.
2Adaptability or versatility
If multiple signal paths are used for different frequency bands, then frequency band flexibility is improved, but insertion loss and noise figure increase
Solution Approach 1:
The patent employs dynamic switching between signal paths based on the active frequency band. The switch element dynamically connects the appropriate signal path for the currently active frequency band, ensuring that signals always travel through the optimal path with minimum insertion loss and noise figure. This dynamic reconfiguration allows the system to maintain high efficiency across all frequency bands while preserving signal integrity.
3Reliability
If separate amplifier circuits are used for each frequency band, then signal amplification is optimized for each band, but device complexity and power consumption increase
Solution Approach 1:
The patent implements a universal amplifier circuit that can be dynamically configured to optimize performance for different frequency bands. Instead of having separate dedicated amplifiers for each band, a single amplifier circuit is shared across all bands with software-controlled configuration, reducing power consumption while maintaining optimized noise reduction and signal amplification for each band through adaptive tuning.
4Adaptability or versatility
If dynamic configuration between frequency bands is implemented, then operational flexibility is improved, but switching time and signal interruption may increase
Solution Approach 1:
The patent pre-configures multiple signal paths and amplifier settings for different frequency bands before switching is needed. The baseband circuitry maintains ready-to-use configurations for 2.4 GHz, 5 GHz, and 6 GHz bands, allowing rapid switching between bands by simply activating pre-prepared configurations rather than performing complex reconfiguration during band transitions, thereby minimizing switching time and signal interruption.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances signal amplification and noise reduction, allowing the transceiver to efficiently switch between frequency bands, improving communication performance in WLANs by reducing insertion loss and noise figure, and enabling simultaneous operation in multiple frequency bands.
Implementation Method 1
The amplifier circuit may be configured to amplify the signals carried by the multiple signal paths
Data Source
AI summary
An example device may include an antenna node configured to be coupled to an antenna element. The antenna node may be configured to pass wireless communications over multiple frequency bands. The device may also include multiple signal paths coupled to the antenna node. Each of the multiple signal paths may be configured to carry a signal from a different one of the multiple frequency bands. The device may further include a switch element coupled to the antenna node by the multiple signal paths and an amplifier circuit within the multiple signal paths between the switch element and the antenna node. The amplifier circuit may be configured to amplify the signals carried by the multiple signal paths.