An antenna device having a magnetic core to be surface-mounted on a circuit substrate includes a pair of coil portions spaced apart from each other at a predetermined interval. The coil portions are connected by a connecting conductor. An end of the magnetic core includes a curved or bent portion curved toward the circuit substrate. This structure defines an RFID antenna device having an improved receiving sensitivity that can be surface-mounted without increasing the thickness of a casing of a mobile electronic device.
申请公布号
US8125401(B2)
申请公布日期
2012.02.28
申请号
US20080341041
申请日期
2008.12.22
申请人
ITO HIROMITSU;KUBO HIROYUKI;YOSUI KUNIAKI;MURATA MANUFACTURING CO., LTD.