Title:
ヘリカルアンテナおよびヘリカルアンテナアレイ
Document Type and Number:
Japanese Patent JP4763167
Kind Code:
B2
Abstract:
A small and light helical antenna, with high gain, can be realized by arranging the dielectric cylinder 1 with a helix conductor 2 on the conductive plate 3, and by arranging a thin rectangular conductive plate 5 between the lower end of helix conductor 2, and the feed point in the predetermined position of the conductive plate 3. This structure makes it possible to have the impedance matching between the input impedance of helix conductor and a power feeder. The upper and lower conductive plates 3 and 10 are to constitute parallel plate waveguide space, and the probe which comes into the parallel plate waveguide space is to be in the lower conductive plate 10 side, and the lower end of a thin rectangular conductive plate 5 is to be connected with the lower end of a probe.
Inventors:
Yasukawa Masataka
Akeno Funae
Koji Akira
Akeno Funae
Koji Akira
Application Number:
JP2001224593A
Publication Date:
August 31, 2011
Filing Date:
July 25, 2001
Export Citation:
Assignee:
FURUNO ELECTRIC COMPANY,LIMITED
International Classes:
H01Q11/08; H01Q21/24; H01Q1/36; H01Q1/38; H01Q21/00; H01Q21/06
Domestic Patent References:
| JP2001094333A | ||||
| JP57099006A | ||||
| JP6069726A | ||||
| JP5343911A | ||||
| JP2246503A | ||||
| JP4156103A |
Foreign References:
| US6115005 |
Attorney, Agent or Firm:
Kaede International Patent Office
Hisao Komori
Hisao Komori