Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Shimizu Satoru and Kurihara Takuya and Suzuki Yoshinori and Kubo Kenjiro and Shintani Kazuki and Iwai Hisato,Development of Proximity Sensor Focusing on Variations in Antenna Impedance,"IEEJ Transactions on Electronics, Information and Systems",0385-4221,The Institute of Electrical Engineers of Japan,2021-11-01,141,11,1156-1157,https://cir.nii.ac.jp/crid/1390571395583484544,https://doi.org/10.1541/ieejeiss.141.1156