Multi-Band Wireless Transceiver Paths for Low Noise and Loss
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Solution Overview
Problem
Existing wireless transceivers struggle to efficiently operate in multiple frequency bands, particularly in the 2.4 GHz and 5 GHz bands, due to limitations in signal handling and amplification, leading to noise figure and insertion loss issues.
Innovation Solution
A wireless transceiver design that includes multiple transmitter/receiver chains with amplifier circuits and switch elements, capable of handling signals across different frequency bands, such as 2.4 GHz, 5 GHz, and 6 GHz, through multiplexing and amplification of signals in unique signal paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single signal path is used for multiple frequency bands, then device complexity is reduced, but noise figure and insertion loss increase
Solution Approach 1:
The patent divides the signal handling into separate paths: a first signal path for 2.4 GHz band and a second signal path for 5 GHz band. Each path has its own amplifier circuit optimized for its frequency band, preventing noise degradation that would occur in a shared path while maintaining manageable device complexity through structured organization.
Solution Approach 2:
The patent applies frequency-specific optimization by placing amplifier circuits with characteristics tailored to each band in their respective signal paths. The first amplifier circuit is optimized for 2.4 GHz while the second is optimized for 5 GHz, ensuring each path has the appropriate quality characteristics for its specific frequency range.
2Reliability
If amplifier circuits are added for each frequency band, then noise figure is reduced, but device complexity increases
Solution Approach 1:
The patent segments the amplification function into separate amplifier circuits for each frequency band. The first amplifier circuit handles 2.4 GHz signals while the second handles 5 GHz signals, allowing each amplifier to be optimized for its specific band rather than requiring a single complex broadband amplifier.
Solution Approach 2:
The antenna node is designed to universally handle multiple frequency bands (2.4 GHz and 5 GHz) through a single structure that supports both bands. This universal antenna node works in conjunction with the separate amplifier circuits, allowing the overall system to be multi-functional while maintaining simplicity at key interfaces.
3Reliability
If separate signal paths are used for different frequency bands, then insertion loss is reduced, but device complexity increases
Solution Approach 1:
The patent implements separate signal paths for 2.4 GHz and 5 GHz bands, with each path containing its own amplifier circuit. This segmentation prevents signal degradation from occurring in a shared path and allows each path to be optimized for minimal insertion loss at its specific frequency.
Solution Approach 2:
The switch element dynamically selects which signal path to use based on the operating frequency band. When operating at 2.4 GHz, the first signal path is activated; when operating at 5 GHz, the second signal path is activated. This dynamic switching allows the system to adapt to different bands while maintaining simple, optimized paths for each.
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
The design reduces noise figure and insertion loss, enabling simultaneous or overlapping operation in multiple frequency bands, enhancing communication efficiency and flexibility.
Implementation Method 1
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
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.