[1]
N. Piladaeng, N. Angkawisittpan, and A. Nuan-On, “Design, construction and validation of a planar probe for measuring complex relative permittivity of materials”, IJET, vol. 7, no. 4, pp. 6171–6174, May 2019, doi: 10.14419/ijet.v7i4.19443.