Title:
ANTENNA ELEMENT
Document Type and Number:
WIPO Patent Application WO/2005/088765
Kind Code:
A1
Abstract:
The winding pitch does not vary and the electric characteristics hardly vary even under bending. A helical coil (10a) having elasticity is fitted on a support member (11) with helical grooves (11a) formed in the outer peripheral surface thereof. This ensures that even if an antenna element (2) is bent, the winding pitch of a helical element (10) does not vary and the electric characteristics are stabilized.
Inventors:
IMAHIGASHI HIROTSUGU (JP)
SHIMIZU HIROSHI (JP)
SHIMIZU HIROSHI (JP)
Application Number:
PCT/JP2005/001580
Publication Date:
September 22, 2005
Filing Date:
February 03, 2005
Export Citation:
Assignee:
NIPPON ANTENNA KK (JP)
IMAHIGASHI HIROTSUGU (JP)
SHIMIZU HIROSHI (JP)
IMAHIGASHI HIROTSUGU (JP)
SHIMIZU HIROSHI (JP)
International Classes:
H01Q1/40; H01Q1/32; H01Q1/36; H01Q11/08; (IPC1-7): H01Q1/36; H01Q1/40
Foreign References:
| JP2003087031A | 2003-03-20 | |||
| JP2000183626A | 2000-06-30 | |||
| JPH10215116A | 1998-08-11 | |||
| JPH0215372Y2 | 1990-04-25 |
Attorney, Agent or Firm:
Asami, Yasuo (Shinkawa-Ohara Bldg. 6F 27-8, Shinkawa 1-chom, Chuo-ku Tokyo 33, JP)
Download PDF: