Department of Electronic Engineering, The University of Electro – Communications (UEC), 1-5-1 Chofugaoka, Chofu Tokyo, 182-8585, Japan

Research Station on Seismo Electromagnetics, UEC, Tokyo, Japan

Department of Electronic Engineering, The University of Electro – Communications (UEC), 1-5-1 Chofugaoka, Chofu Tokyo, 182-8585, Japan

Research Station on Seismo Electromagnetics, UEC, Tokyo, Japan

Department of Electronic Engineering, The University of Electro – Communications (UEC), 1-5-1 Chofugaoka, Chofu Tokyo, 182-8585, Japan

Research Station on Seismo Electromagnetics, UEC, Tokyo, Japan

Department of Electronic Engineering, The University of Electro – Communications (UEC), 1-5-1 Chofugaoka, Chofu Tokyo, 182-8585, Japan

Research Station on Seismo Electromagnetics, UEC, Tokyo, Japan

Department of Electronic Engineering, The University of Electro – Communications (UEC), 1-5-1 Chofugaoka, Chofu Tokyo, 182-8585, Japan

Research Station on Seismo Electromagnetics, UEC, Tokyo, Japan

Research Station on Seismo Electromagnetics, UEC, Tokyo, Japan

Advanced Wireless Communications Research Station, UEC, Tokyo, Japan