Test Antenna Measurement System for Device Receive Behavior
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Solution Overview
Problem
Current measurement systems lack the capability to accurately and efficiently investigate the receive behavior of devices under test, particularly in wireless communication applications, as there is no established method for assessing this behavior effectively.
Innovation Solution
A measurement system comprising a test antenna, test equipment, and a positioner that derives signal properties from geometrical and radiation pattern data, allowing for accurate and efficient investigation of the receive behavior by moving the test antenna and position relative to the device under test, and utilizing a holder and positioner for precise device placement, with the ability to store and retrieve data for increased efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a measurement system is designed to investigate receive behavior of a device under test, then measurement accuracy is improved, but device complexity increases due to the need for test antenna, test equipment, positioner, and holder components
Solution Approach 1:
The measurement system is divided into distinct functional modules: test antenna for signal transmission, test equipment for signal property derivation, positioner for device positioning, and holder for device support. Each component performs a specific function, allowing the complex measurement task to be broken down into manageable segments that can be independently optimized and maintained.
Solution Approach 2:
The test equipment derives signal properties from geometrical information and radiation pattern data before actual transmission through the test antenna. This preliminary calculation of signal properties (amplitude, phase, polarization) based on pre-stored antenna characteristics enables accurate receive behavior measurement without requiring complex real-time signal generation capabilities.
2Productivity
If the test antenna position and test position move relatively to each other during measurement, then measurement efficiency is improved by enabling multiple measurements, but measurement precision may deteriorate due to positioning challenges
Solution Approach 1:
The measurement system incorporates a positioner that enables dynamic repositioning of the device under test during measurements. The test antenna and test position can move relative to each other in a controlled manner, allowing multiple measurement positions to be accessed without manual intervention. This dynamic capability increases measurement efficiency while the automated positioning control maintains measurement precision through consistent, repeatable positioning.
Solution Approach 2:
The system uses stored geometrical information about antenna positions and device test positions to calculate and control the relative movements during measurement. This feedback mechanism ensures that as the test antenna and device move relative to each other, the positioning remains accurate and consistent, maintaining measurement precision while enabling multiple measurement positions for improved efficiency.
3Measurement precision
If geometrical information and radiation pattern data are used to derive signal properties, then measurement accuracy is improved, but data storage requirements and system complexity increase
Solution Approach 1:
Geometrical information about the test antenna (radiation patterns, polarization characteristics, gain) and radiation pattern data are stored in advance in the test equipment or accessible memory. This preliminary preparation of data allows the system to quickly derive signal properties during measurement without requiring real-time complex calculations or additional sensing equipment, thereby improving measurement accuracy while minimizing additional storage requirements to only the essential antenna characterization data.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables highly accurate and efficient investigation of the receive behavior of devices under test, enhancing measurement efficiency and accuracy through the use of geometrical and radiation pattern data, and allowing for multiple measurements and sphere-shaped antenna movement.
Implementation Method 1
derive from geometrical information and radiation pattern data of the test antenna position based signal properties for transmitting via the test antenna
Data Source
AI summary
A measurement system for investigating the receive behavior of a device under test is provided. The measurement system comprises a test antenna, a test equipment connected to the test antenna, and a test position with respect to the device under test. In this context, the test equipment is configured to derive from geometrical information and radiation pattern data of the test antenna position based signal properties for transmitting via the test antenna.