Multiband RF Signal Processing with Selective Paths for Non-Contiguous Bands
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Solution Overview
Problem
Existing radio frequency signal processing apparatuses struggle to efficiently handle multiband signals with non-contiguous frequency bands, leading to inefficiencies in signal processing and energy consumption.
Innovation Solution
A flexible apparatus design with a primary signal processing stage and dual signal paths, allowing selective coupling for processing multiband signals, including non-contiguous frequency bands, using a frequency band separator and secondary signal processing stages with frequency-specific amplifiers and switches for optimized signal handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single signal processing stage is used for multiple frequency bands, then device complexity is reduced, but signal processing efficiency deteriorates
Solution Approach 1:
The signal processing apparatus is divided into multiple independent signal processing stages, each dedicated to processing specific frequency bands. This segmentation allows each stage to be optimized for its specific frequency range, improving overall processing efficiency while maintaining manageable complexity through modular architecture.
Solution Approach 2:
Multiple signal processing stages are combined within a single apparatus that can handle multiple frequency bands simultaneously. The apparatus provides multi-functionality by processing different frequency bands through different stages, achieving both complexity reduction at the system level and efficiency improvement at the processing level.
2Measurement precision
If frequency band separator is added to separate non-contiguous bands, then signal processing precision is improved, but device complexity increases
Solution Approach 1:
A frequency band separator is introduced as an intermediary component between the antenna and the signal processing stages. This separator selectively directs different frequency bands to appropriate processing stages, enabling precise frequency separation while the modular design keeps the overall apparatus complexity manageable.
3Productivity
If multiple signal processing stages are used for different frequency bands, then signal processing efficiency is improved, but energy consumption increases
Solution Approach 1:
The signal processing apparatus dynamically activates or deactivates specific signal processing stages based on which frequency bands are currently in use. This dynamic operation allows the system to maintain high processing efficiency for active bands while reducing energy consumption by keeping inactive stages off, thus resolving the contradiction between efficiency and power consumption.
Data Source
AI summary
An apparatus for processing radio frequency signals, comprising a primary signal processing stage that is configured to process multiband radio frequency signals comprising at least a first frequency band and a second frequency band, a first signal path, and a second signal path, wherein the apparatus is configured to selectively couple the primary signal processing stage a) with the first signal path to enable processing of multiband radio frequency signals associated with the first signal path using the primary signal processing stage and/or b) with the second signal path to enable processing of multiband radio frequency signals associated with the second signal path using the primary signal processing stage.