Description
DT Rotator Fixture Overview
The DT Rotator Fixture is a precision test accessory designed to support accurate and repeatable antenna measurements for smartphones and small wireless devices. Developed by Concentric Technology Solutions, this fixture enables controlled device positioning during RF testing in R&D, service, and quality assurance environments.
Because antenna performance varies with orientation, controlled rotation is essential for reliable measurements. This fixture allows engineers to evaluate device performance at multiple angles while maintaining consistent placement throughout the test process.
Controlled Rotation for Reliable Measurements
The fixture securely holds devices of various smartphone sizes while allowing 360-degree horizontal rotation and 90-degree vertical rotation. As a result, engineers can test antenna performance across a full range of orientations without manually repositioning the DUT.
This controlled motion reduces setup variation and improves repeatability. In addition, the stable mechanical design helps ensure consistent results across multiple test cycles.
Key Features and Benefits
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Secure mounting for smartphones and small wireless devices
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Smooth horizontal and vertical rotation
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Improved repeatability and test accuracy
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Reduced manual handling during testing
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Suitable for R&D, validation, service, and QA workflows
Because of these features, this fixture is commonly used in bench-top RF testing environments where consistency and efficiency are critical.
Custom Fixture Design Options
In some applications, a standard fixture may not fully meet test requirements. For this reason, custom rotator fixtures can be designed and manufactured based on your DUT form factor, interface needs, budget, and timeline.
This flexible approach allows teams to adapt their test setup as product designs evolve, without replacing the entire test system.
For more information about a custom solution, please contact your CTS sales representative.
Typical Applications
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Smartphone antenna testing
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Small wireless and IoT device validation
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RF characterization and verification
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Pre-compliance and quality assurance testing







