RF Probe Power Detector Integration
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Solution Overview
Problem
The calibration of measurement systems for high-frequency radio frequency devices becomes increasingly complex and costly, making it challenging to achieve precise and reliable power measurements without introducing signal disturbances from cables and connectors.
Innovation Solution
A probe with a directly connected power detector that contacts the device under test, eliminating the need for additional elements and simplifying the calibration process by measuring power directly at the point of contact, thereby avoiding signal attenuations and disturbances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional elements such as cables and connectors are introduced to connect the measurement system with the device under test, then the measurement system can be physically connected to the device, but signal disturbances and attenuations are introduced that require complex calibration
Solution Approach 1:
The power detector is merged with the contacting means by integrating it directly into the probe structure. This combination eliminates the need for separate cables and connectors between the power detector and the device under test, thereby avoiding signal disturbances while maintaining physical connection capability
Solution Approach 2:
The harmful elements (cables and connectors) that cause signal attenuation and distortion are extracted or removed from the measurement path. By directly integrating the power detector with the contacting means, the patent eliminates these intermediate elements that would otherwise require complex calibration procedures
2Measurement precision
If a complex calibration process is performed to compensate for signal disturbances from cables and connectors, then measurement precision can be improved, but the testing process becomes more complex and expensive
Solution Approach 1:
The complex calibration process is eliminated by removing the sources of error (cables and connectors) from the measurement path. The direct integration of the power detector with the contacting means extracts the problematic intermediate elements, making calibration unnecessary
Solution Approach 2:
The probe structure serves itself by integrating the power detector directly into the contacting means. This self-contained design automatically eliminates the need for external calibration procedures, as the measurement path contains no intermediate elements that would require compensation
3Ease of manufacture
If traditional measurement systems with separate power detectors and cables are used, then the system can be assembled with standard components, but the testing process becomes slower and more costly due to complex calibration requirements
Solution Approach 1:
The power detector and contacting means are merged into a single integrated probe structure. This combination eliminates the need for separate assembly of multiple standard components (cables, connectors, separate power detector), thereby simplifying manufacturing while increasing testing speed by eliminating calibration steps
Data Source
AI summary
Probe for testing a radio frequency device, test system and test method. A probe is used for measuring radio frequency signals provided by the device under test or for providing test signals to the device under test. In particular, the probe comprises a power detector directly connected to the contacting elements of the probe. Accordingly, such a power detector can provide a power signal highly correlated with the power signal of a radio frequency signal at input or output terminals connected to the probe.