Open AccessThree‐dimensional surface wave measurement system
Author(s) -
Peng Gantao,
Zhu Shitao,
Zhang Jingsi,
Shi Hongyu,
Zhang Yangyang,
Li Jianxing,
Zhang Anxue
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0226
Subject(s) - signal (programming language) , system of measurement , capacitive sensing , optics , acoustics , coupling (piping) , scanner , electric field , materials science , capacitive coupling , phase (matter) , measure (data warehouse) , position (finance) , physics , computer science , voltage , electrical engineering , engineering , finance , quantum mechanics , astronomy , database , economics , metallurgy , programming language
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.