Three-dimensional surface wave measurement system

• Published in: Journal of engineering (Stevenage, England) Vol. 2019; no. 20; pp. 6692 - 6694
• Main Authors: Peng, Gantao, Zhu, Shitao, Zhang, Jingsi, Shi, Hongyu, Zhang, Yangyang, Li, Jianxing, Zhang, Anxue
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 01-10-2019; Wiley
• Subjects: automatic measurement; capacitive coupling; electric magnitude; electric probe; IET International Radar Conference (IRC 2018); LabVIEW; metamaterials; near-field probe; phase distribution; signal-matching efficiency; spatial resolution; spoof surface plasmon polariton coupling metasurface sample; stepping motors; surface plasmon polaritons; three-axis sliding rods; three-dimensional near-field measurement system; three-dimensional surface wave measurement system; stepping motors; electric probe; near-field probe; capacitive coupling; metamaterials; three-axis sliding rods; surface plasmon polaritons; three-dimensional near-field measurement system; electric magnitude; automatic measurement; spatial resolution; signal-matching efficiency; phase distribution; spoof surface plasmon polariton coupling metasurface sample; LabVIEW; three-dimensional surface wave measurement system
• ISSN: 2051-3305; 2051-3305
• DOI: 10.1049/joe.2019.0226

This study presents a three-dimensional near-field measurement system to measure surface waves using LabVIEW. The system is based on the capacitive coupling between metasurface and the electric probe, which is optimised to increase signal-matching efficiency. In order to realise three-dimensional near-field measurements, the scanner is composed of three-axis sliding rods and three stepping motors to drive the near-field probe. Especially, the double position/signal difference method is used to obtain a high spatial resolution. The system is controlled by LabVIEW to realise automatic measurement so that the electric magnitude and phase distribution can be displayed in real time. Finally, a spoof surface plasmon polariton coupling metasurface sample is measured by the system. The measurement results of surface waves are in good agreement with the simulation.