Liu Xiao, Meng Donglin, Huan-Zhi Pan, Song Zhenfei, Liao Jinyuan, Lin Hao-yu
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Accurate Measurement for Millimeter-wave Antenna Based on the Extrapolation Range
A three antenna extrapolation facility was recently built in National Institute of Metrology (NIM), China. It extend the antenna measurement frequency up to 110GHz, and the gain uncertainty lower than 0.1dB can be achieved. Based on the extrapolation range facility, a Spherical Near Field (SNF) scan up to 110GHz is developed. Accurate millimeter-wave antenna gain measurements using the three-antenna extrapolation technique and reference antenna method with port corrections are presented, respectively. The patterns obtained from SNF scan are also given. It is verified that NIM could provide highly accurate millimeter-wave antenna measurements facing industrial requirements.
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