Multi-Domain Measurement System for RF Power Correlation
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Solution Overview
Problem
The challenge lies in effectively measuring and optimizing the power consumption of radio frequency modules and chip sets, particularly battery-powered devices, as power supply signals and analog RF signals operate within different domains, making it difficult to correlate and reduce power consumption during the design process.
Innovation Solution
A Multi-Domain Measurement System comprising an oscilloscope unit and power probe unit, which allows simultaneous measurement of signals across different domains (power, analog, and digital) with high precision, using an oscilloscope unit with at least one analog input channel and a power probe unit providing digitized measurements, enabling correlation of power consumption with analog signals and digital outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate measurement systems are used for power domain and analog domain signals, then measurement coverage is improved, but system complexity increases
Solution Approach 1:
The patent combines multiple measurement functions (power domain measurement, analog domain measurement, and digital domain measurement) into a single integrated measurement system. The oscilloscope unit serves as a central platform that can simultaneously measure and correlate signals from different domains, eliminating the need for separate measurement systems and reducing overall system complexity while maintaining comprehensive measurement coverage.
Solution Approach 2:
The oscilloscope unit is designed with multi-functionality to handle various measurement tasks across different domains. It includes both analog input channels for RF signals and digital interfaces for power consumption data, allowing a single device to perform multiple measurement functions that would traditionally require separate specialized instruments.
2Measurement precision
If standard digitizing resolution is used for both power and analog signals, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent applies different digitizing resolutions to different measurement channels based on their specific requirements. The power probe unit uses high vertical digitizing resolution (at least 2x higher than analog channels) specifically for power consumption measurements where precision is critical, while analog RF input channels use standard resolution appropriate for their measurement needs. This localized optimization of resolution ensures measurement precision where required without unnecessarily increasing complexity across the entire system.
Data Source
AI summary
A Multi-Domain Measurement System has an oscilloscope unit and a power probe unit. The oscilloscope unit comprises an analog input channel for receiving a measured analog signal and a first digital interface for receiving digitized measurement values from said power probe unit. The power probe unit is connected to the first digital interface for providing digitized measurements of a power supply signal. The power probe unit and the analog input channel are assigned to a device under test for simultaneously measuring signals in different domains. The power probe unit has a power probe measurement channel providing a vertical digitizing resolution that is at least two times higher than a vertical digitizing resolution of the analog input channel.Further, uses of a Multi-Domain Measurement System are provided.