Title:
アンテナ
Document Type and Number:
Japanese Patent JP3564308
Kind Code:
B2
Abstract:
An antenna for portable radio apparatus, comprising a conductive filament arranged in a tapering corrugated configuration having an envelope extending from a narrow portion to a wider portion. The conductive filament is arcuately disposed about a longitudinal direction of the tapering configuration, thereby forming a generally tubular antenna. The conductive filament may be fabricated using metal printing technology.
Inventors:
Brian davidson
Application Number:
JP31152198A
Publication Date:
September 08, 2004
Filing Date:
November 02, 1998
Export Citation:
Assignee:
NOKIA CORPORATION
International Classes:
H01Q1/24; H01Q1/36; H01Q1/38; H01Q5/00; H01Q13/08; H01Q9/40; H01Q9/42; H01Q11/14; H01Q11/18; (IPC1-7): H01Q1/24; H01Q1/36; H01Q1/38; H01Q13/08
Domestic Patent References:
| JP5347507A | ||||
| JP56000712A | ||||
| JP47042202Y1 | ||||
| JP5243834A | ||||
| JP9055618A | ||||
| JP10215113A |
Foreign References:
| EP0198578A1 | ||||
| WO1997049141A1 |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo