A Method for Over-the-Air Noise Figure Measurement of Active Antenna Under Specified Practical Distance

被引：0
作者：
Chen, Haidong [1 ,2 ]
Yuan, Mingyi [2 ,3 ]
Shen, Guangxu [4 ]
Gan, Shuyou [2 ]
Che, Wenquan [1 ,2 ]
Xue, Quan [1 ,2 ]
机构：
[1] Guangdong Prov Key Lab Millimeter Wave & Terahertz, Guangzhou 510630, Peoples R China
[2] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510630, Peoples R China
[3] TP LINK Technol Co Ltd, Shenzhen 518057, Peoples R China
[4] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2025年 / 74卷
基金：
中国国家自然科学基金;
关键词：
Active antenna noise figure (NF); noise measurement; noise temperature; over the air (OTA); FEED;
D O I：
10.1109/TIM.2025.3533617
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This work proposes a noise figure (NF) measurement method for active antennas based on the over-the-air (OTA) method. First, the relevant concepts of NFs are reviewed. Then, the calibration of path gain is proposed and the calculation for the NF is deduced. Finally, the measurement setup and procedure are presented, and the measurements are performed. The results using the proposed method and those from traditional conduction measurement are compared, which verifies our idea. Compared to the existing methods, the proposed method has the advantage of independence on the measurement distance between the transmit antenna and the active antenna under test (AAUT) in a specified range.
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页数：7
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