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Title:
ELECTRONIC CIRCUIT PROVIDED WITH ANTENNA SEALED WITH MAGNETIC BODY
Document Type and Number:
Japanese Patent JP2006304080
Kind Code:
A
Abstract:

To provide an electronic circuit capable of improving an antenna Q value by magnetically separating an antenna and a metal case body for the purpose of installing the antenna inside the metal case body, and to provide an electronic circuit capable of suppressing the degradation of antenna characteristics due to the influence of noise generated from the inside of a clock.

In the electronic circuit, the antenna mounted on a substrate and an analog circuit part and/or a digital circuit part are sealed with an electromagnetic wave absorbent resin. The antenna is provided with a magnetic core composed of a magnetic body, and a sub magnetic path is constituted of the magnetic core and the electromagnetic wave absorbent resin.


Inventors:
MITA MASAHIRO
ARAKI HIROKAZU
MITSUMATA CHIHARU
Application Number:
JP2005125233A
Publication Date:
November 02, 2006
Filing Date:
April 22, 2005
Export Citation:
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Assignee:
HITACHI METALS LTD
International Classes:
H01Q1/52; G04G17/08; G04G21/04; G04R60/12; H01Q1/22; H01Q7/08; H01Q17/00; H01Q23/00; H05K9/00