Micro antenna measurement system built to provide the basis for antenna metering

[China Instrument Network Instrument R&D] A few days ago, an antenna spherical near-far field measurement system was successfully completed. The device can meet the measurement requirements and provide technical support for line measurement and measurement and calibration capabilities.

Recently, the United States NSI company and his party came to the China Electronics Standardization Institute to help build an antenna near-far field measurement system. The measurement system uses the National Development and Reform Commission project “Northern Internet of Things Testing and Certification Public Service Platform” to introduce a spherical near-far field measurement system. And built a high-performance antenna measurement microwave darkroom.

With the development of wireless communication technologies, micro-small antennas have a wide range of applications in mobile communications, radio frequency identification chips, satellite navigation, wireless local area networks, and Internet of Things. Because of the technical characteristics of the miniature antenna itself, its performance is difficult to simulate accurately with simulation software, and the demand for actual measurement is more urgent. In addition, some micro-mini antennas need to work in multi-channel and multi-frequency bands. In the product design and R&D phase, a large amount of actual measurement work is required. The micro-small antenna measurement system built by China Electronics Standardization Institute can meet the measurement requirements.

The frequency coverage of the micro antenna measurement system built this time is from 0.75 to 40 GHz, and the diameter of the antenna to be measured can reach 0.5 meters at the maximum. The near-field test technology is used, and the automatic conversion between near and far fields can be realized. Compared with far-field measurements, near-field measurements can be performed in microwave darkrooms, with minimal environmental impact and high measurement accuracy. The completion of the system not only matches the testing and certification work of the China Electronics Technology and Standardization Institute Internet of Things Research Center, but also expands the antenna measurement and metrology calibration capabilities of the China Electronics Standardization Institute for antenna measurement and test research and service work for the next step. Laid a good foundation.