Keating & Bennett, LLP
Magnetic antenna and antenna device
A highly sensitive magnetic antenna and an antenna device achieve strong coupling with magnetic flux substantially perpendicular to main surfaces of a magnetic core, an enlarged antenna opening, and increased efficiency of magnetic flux radiation. The magnetic antenna includes a flexible substrate and a magnetic core preferably having a substantially rectangular plate shape. The flexible substrate has a spiral coil conductor located thereon, and the coil conductor has a conductor opening located at the center of the winding center thereof. The flexible substrate is bent in the vicinity of the two sides of the coil conductor spaced apart from the center of the conductor opening and along the two sides of the magnetic core, so as to wrap around the upper surface, left and right surfaces, and portions of the lower surface of the magnetic core.
Murata Manufacturing Co., Ltd.
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Kuniaki Hiroyuki Hiromitsu
Yosui Kubo Ito