|Posted date||Oct 29, 2012|
|International application number||2011JP069244|
|International publication number||WO 2012/029639|
|Date of international filing||Aug 26, 2011|
|Date of international publication||Mar 8, 2012|
The present invention has the objective of providing a shared antenna which can perform communication using radio waves of different frequencies and polarization characteristics, additionally is of a simple configuration and can even be installed in a small device. To this end, an antenna (1) of the present invention has a plurality of revolutions forming a cross shape in a spiral, gaps (5) provided in the middle of the spiral circumferential paths, and a feed unit (4) provided in the center portion, wherein the intervals between the gaps (5) generate an electromagnetic coupling at a first frequency but do not generate an electromagnetic coupling at a second frequency which is higher than the first frequency.
|IPC(International Patent Classification)||
Contact Information for " ANTENNA "
TECHNO NETWORK SHIKOKU CO.,LTD. (In Japanese)
- URL: http://www.s-tlo.co.jp/
- Address: 2-5, Marunouchi, Takamatsu-shi, Kagawa, Japan , 760-0033
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