Over-the-Air Temperature Testing System for DUT
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Solution Overview
Problem
Current over-the-air measurement systems for investigating device under test temperature behavior are inefficient due to limited accessibility and movability, particularly with respect to major parts of the apparatus.
Innovation Solution
An over-the-air measurement system comprising a positioning unit, temperature generating unit, piping system, and radio frequency neutral enveloping material that allows relative movement and rotation of the device under test, enabling efficient temperature testing while avoiding interference with RF signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the device under test is positioned in a fixed measurement system, then measurement stability is improved, but accessibility and movability are worsened
Solution Approach 1:
The patent implements a movable positioning unit that can move the device under test relative to the measurement antenna, transforming the fixed measurement system into a dynamic one. This allows the system to maintain measurement stability when needed while providing accessibility and movability when required, resolving the contradiction between stability and ease of operation
Solution Approach 2:
The positioning unit acts as an intermediary between the fixed measurement system and the device under test, enabling relative movement without compromising the stability of the measurement antenna or the overall system structure. This mediator allows accessibility improvements while preserving measurement stability
2Temperature
If the device under test is surrounded by enveloping material for temperature control, then temperature testing capability is improved, but RF signal interference is worsened
Solution Approach 1:
The patent employs a flexible enveloping material that can be positioned around the device under test for temperature control. This flexible shell provides thermal management capability while being configurable to minimize RF signal interference, resolving the contradiction between temperature control and RF signal quality
Solution Approach 2:
The enveloping material is applied locally around the device under test rather than throughout the entire measurement system. This localized approach provides temperature control where needed while minimizing the overall RF signal interference, allowing the system to achieve temperature testing capability without compromising RF signal quality
3Stability of the object's composition
If the measurement system components are fixed in position, then system stability is improved, but measurement efficiency is worsened
Solution Approach 1:
The patent introduces a movable positioning unit that enables dynamic adjustment of the device under test position relative to the measurement antenna. This dynamic capability improves measurement efficiency by allowing rapid repositioning and multiple measurement angles while maintaining system stability through controlled movement mechanisms
Solution Approach 2:
The positioning unit enables periodic movement of the device under test to different measurement positions and angles. This periodic action allows comprehensive measurements to be taken efficiently by systematically moving the device through predetermined positions, improving productivity while maintaining system stability
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
This configuration enhances accessibility and accuracy in temperature testing by allowing precise temperature control and movement of the device under test, reducing limitations in existing systems and improving measurement efficiency.
Implementation Method 1
a temperature generating unit (14) for generating heated or cooled air
Implementation Method 2
a temperature generating unit (14) for generating heated or cooled air
Implementation Method 3
a piping system (15) comprising at least one pipe (15a, 15b) connected to the temperature generating unit (14) for passing the heated or cooled air generated by the temperature generating unit (14)
Data Source
AI summary
An over-the-air measurement system for investigating a device under test with respect to its temperature behavior is provided. The over-the air measurement system includes a positioning unit attached to the device under test for positioning the device under test, at least one antenna, and a temperature generating unit for generating heated or cooled air. The over-the-air measurement system includes a piping system comprising at least one pipe connected to the temperature generating unit for passing the heated or cooled air generated by the temperature generating unit into at least one opening of an enveloping material surrounding the device under test or for siphoning the heated or cooled air.