Antenna Module Self-Testing Signal Generation
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Solution Overview
Problem
The 5G communication system faces challenges in efficiently testing high-frequency antenna modules due to the need for expensive far-field chamber equipment, which is costly and time-consuming, especially when trying to verify radio frequency characteristics and differentiate between non-defective and defective goods.
Innovation Solution
An antenna module with a built-in transmission chain, including a mixer, frequency generator, and switch, allows for self-testing by up-converting transmission signals into a radio frequency band and selectively delivering signals for testing, reducing the need for external equipment and space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a radiation verification system is used to test high frequency antenna modules, then the RF characteristics can be verified, but the equipment cost and installation complexity increase significantly
Solution Approach 1:
The antenna module performs self-testing by generating test signals internally through the frequency generator and mixer, eliminating the need for external far-field chamber equipment. The module tests its own RF characteristics using integrated components, thereby reducing equipment complexity and cost while maintaining measurement precision.
Solution Approach 2:
The antenna module is designed with multi-functionality, serving both as a communication device and a self-testing device. The frequency generator and mixer components enable the module to generate test signals and verify its own RF characteristics, combining testing functionality with communication functionality in a single integrated system.
2Measurement precision
If far-field chamber equipment is installed to test high frequency signals, then accurate RF characteristic measurement is achieved, but the space requirement and equipment cost increase
Solution Approach 1:
The antenna module conducts self-testing within its own integrated structure, eliminating the need for separate far-field chamber facilities. The test signals are generated and processed internally, allowing accurate RF characteristic measurement without requiring additional testing space, thereby reducing both area requirements and equipment costs.
3Reliability
If traditional radiation verification systems are used, then defective goods can be identified, but the testing time and productivity are reduced
Solution Approach 1:
The antenna module performs self-testing immediately after manufacturing, enabling rapid identification of defective units without requiring time-consuming external verification systems. The integrated frequency generator and mixer allow for quick self-diagnosis, significantly improving productivity while maintaining reliable defective detection.
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 solution enables cost-effective and efficient self-testing of antenna modules, reducing equipment costs and space requirements while effectively verifying RF characteristics and identifying defective units within the manufacturing line.
Implementation Method 1
a first mixer configured to up-convert a transmission signal into a radio frequency band
Data Source
AI summary
The present disclosure relates to a 5th (5G) generation or pre-5G communication system for supporting a higher data transmission rate beyond a 4th (4G) generation communication system such as long term evolution (LTE). According to various embodiments of the present disclosure, an antenna module may include at least one transmission chain including a first mixer configured to up-convert a transmission signal into a radio frequency band; at least one frequency generator configured to generate at least one signal; and at least one switch configured to receive the at least one signal generated from the frequency generator, and to selectively deliver the at least one signal to the first mixer, the antenna element, the transmission chain, and the frequency generator.