Title:
携帯電子機器
Document Type and Number:
Japanese Patent JP5170087
Kind Code:
B2
Abstract:
A magnetic field coupling antenna module or device comprises a magnetic core 112 embedded in an insulating layer 110. Upper surface conductors 116 are formed on an upper surface of the insulating layer 110 and lower surface conductors 118 are formed on a lower surface of the insulating layer 110 whilst side surface conductors 120 and via holes 122, which electrically connect the upper surface conductors 116 with the lower surface conductors 118 to constitute a coil having a coil axis parallel to the upper surface of the insulating layer 110 whereby a magnetic field coupling antenna is formed. The module or device may include a capacitor 680 which is also embedded in the insulating layer 110. The magnetic core 112 may have various formations involving a plurality of magnetic core members. Plural coils may be formed and linked to surface electrodes via a capacitor. The antenna module or device is easily manufactured and provides a highly sensitive antenna with good impact resistant characteristics.
Inventors:
Tsutomu Ieki
Hiroyuki Kubo
Masamichi Ando
Hiroyuki Kubo
Masamichi Ando
Application Number:
JP2009511768A
Publication Date:
March 27, 2013
Filing Date:
April 10, 2008
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01Q7/08; G06K19/07; G06K19/077; H01F17/00; H01P11/00; H01Q1/38
Domestic Patent References:
| JPH1098322A | 1998-04-14 | |||
| JP2003218626A | 2003-07-31 | |||
| JP2000137779A | 2000-05-16 | |||
| JP2006074534A | 2006-03-16 |
Attorney, Agent or Firm:
Kaede International Patent Office