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Machine translation
1. (WO2000026990) HELICAL ANTENNA
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/026990    International Application No.:    PCT/JP1999/005958
Publication Date: 11.05.2000 International Filing Date: 28.10.1999
Chapter 2 Demand Filed:    28.10.1999    
IPC:
H01Q 1/38 (2006.01), H01Q 5/00 (2006.01), H01Q 11/08 (2006.01)
Applicants: NEC CORPORATION [JP/JP]; 7-1, Shiba 5-chome Minato-ku Tokyo 108-8001 (JP) (For All Designated States Except US).
KURAMOTO, Akio [JP/JP]; (JP) (For US Only)
Inventors: KURAMOTO, Akio; (JP)
Agent: WAKABAYASHI, Tadashi; 16th Kowa Building 8th Floor 9-20, Akasaka 1-chome Minato-ku Tokyo 107-0052 (JP)
Priority Data:
10/309288 30.10.1998 JP
Title (EN) HELICAL ANTENNA
(FR) ANTENNE HELICOIDALE
Abstract: front page image
(EN)A radiating element comprises a helical element (1), a diode (2) and a helical element (3). When the diode (2) is off, the helical elements (1, 3) are isolated from each other, so that only helical element (1) alone operates as a radiating element. When the diode (2) is on, the helical elements (1, 3) are connected and they cooperate.
(FR)Element rayonnant comprenant un premier élément hélicoïdal (1), une diode (2) et un second élément hélicoïdal (3). Quand la diode est hors circuit, les éléments hélicoïdaux (1, 3) sont isolés l'un de l'autre, de façon que seul l'élément (1) fonctionne comme élément rayonnant. Quand la diode (2) est en circuit, les éléments hélicoïdaux (1, 3) sont connectés et coopèrent.
Designated States: AU, CA, CN, KR, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)