Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2012/09/01 Vol. E95-CNo. 9pp. 1508-1514 Type of Manuscript: Special Section PAPER (Special Section on Recent Development of Electro-Mechanical Devices - Papers selected from International Session on Electro-Mechanical Devices 2011 (IS-EMD2011) and other recent research results -) Category: Keyword: passive intermodulation, standing wave measurement, nonlinearity, non-contact measurement, electric contacts,