Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2001/001518
Kind Code:
A1
Abstract:
A helical antenna is fed in a noncontact manner. The helical antenna (15) is inserted in a position opposed to the slots (3a-3d) in a noncontact manner inside the dielectric cylinder (1). The strip conductors (4a-4d) are perpendicular to the slots (3a-3d) and separated by the dielectric cylinder (1). The slots (3a-3d) are coupled electromagnetically to radiating elements (13a-13d) of the helical antenna and the strip conductors (4a-4d). The radiating elements (13a-13d) of the helical antenna are energized by microwaves supplied through the input terminal (P1), the hybrid connections (8, 6a, 6b), the strip conductors (4a-4d), and the slots (3a-3d).
Inventors:
OHWADA TETSU
MIYAZAKI MORIYASU
ENDO TSUTOMU
MIYAZAKI MORIYASU
ENDO TSUTOMU
Application Number:
PCT/JP1999/003453
Publication Date:
January 04, 2001
Filing Date:
June 29, 1999
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01Q1/24; H01Q1/36; H01Q1/38; H01Q11/08; (IPC1-7): H01Q11/08
Foreign References:
| JPH10256824A | 1998-09-25 | |||
| JPH09307326A | 1997-11-28 | |||
| JPH0951224A | 1997-02-18 |
Attorney, Agent or Firm:
Miyata, Kaneo (Marunouchi 2-Chome Chiyoda-ku Tokyo, JP)
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