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Laser Tracker in Antenna Measurement

Laser Tracker in Antenna Measurement

Laser Tracker in Antenna Measurement

Product catalog summary
Introduction
Automated Precision Europe GmbH discusses the application of laser trackers in antenna measurement, highlighting the importance of precise 3D measurement technology in various fields such as aerospace, automotive, telecommunications, and defense.

Compact Range Antenna Metrology
This method involves using an anechoic chamber to align three main elements: the feed antenna, a reflector, and the test antenna. The goal is to simulate far-field conditions within a compact space, allowing for high-quality plane wave generation and measurement.

Large Dimensions and Accuracy
Despite the small size of receiving antennas, the test environment is large due to the need for anechoic features and specific measurement distances. Laser trackers like the Radian from API are used for their precision in confined spaces.

Quality Feature: Wave Smoothness
Wave flatness is crucial in antenna metrology, similar to surface flatness in production measurement. Laser trackers replace theodolites for faster and more accurate measurements, integrating results directly into CAD systems.

Spherical Near-Field Measurement Systems
Used in the automotive field, these systems involve rotating the object and scanning a spherical surface. The Active Target from API, combined with a laser tracker, automates the measurement process, allowing for continuous tracking.

Planar Near-Field Measurements
Suitable for large aperture and high-frequency antennas, these systems require precise alignment. Laser trackers are essential for handling large structures and ensuring accurate measurements.

Conclusion
Laser-based measurement technology offers compactness, mobility, and integration with CAD software, making it ideal for antenna metrology. ORBIT/FR provides comprehensive solutions in this market.

About ORBIT/FR
ORBIT/FR supports various sectors with antenna test and measurement solutions, offering technologies for Near-Field, Far-Field, and Compact Range applications. It is part of the Microwave Vision Group.
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Catalog excerpts

Laser Tracker in Antenna Measurement-1

Laser Tracker in Antenna Measurement Automated Precision Europe GmbH Im Breitspiel 17 69126 Heidelberg Tel: +49 (0) 6221 729 805 0 Fax: +49 (0) 6221 729 805 23

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Laser Tracker in Antenna Measurement-2

API APPLICATION STORY TM Appication Story: Antenna Measurement Antenna Measurement ORBIT/FR Antennas are used for the transition of guided electromagnetic waves into free space, and antenna metrology takes place at exactly this interface. ORBIT/FR offers turnkey solutions in this area for aerospace, automotive and telecommunication fields, as well as for the defence sector. Whichever of the solutions offered by ORBIT/FR comes into question for a specific application, the following applies: any measurement geometry sets high requirements on the 3D measurement technology that will be needed, in...

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Laser Tracker in Antenna Measurement-3

API APPLICATION STORY TM Appication Story: Antenna Measurement Quality feature: the smoothness of a wave As is also the case for the flatness of a surface in production measurement technology, which is often also determined with laser-based measurement systems, flatness - in this case of an electromagnetic wave – also plays a particularly important role in antenna metrology. The flatter the wave, the better the test environment, and thereby the quality of the results. In order to be able to optimally measure these flatnesses, antennae must be exactly positioned on gauges that run transversely...

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Laser Tracker in Antenna Measurement-4

API APPLICATION STORY TM Appication Story: Antenna Measurement Spherical near-field measurement systems These systems are frequently used in the automotive field. The object to be measured rotates around a vertical axis on a rotating table, while the measurement antenna describes a curve with the help of a moving gantry arm, and scans a spherical surface at a specific distance from the object to be measured (for example, a car with integrated antenna technology) within a predefined grid. If theodolites were used in such a case, the measurement of the antenna position would take much too long....

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