Biconical antenna

Details Biconical antenna Biconical antenna

2007-05-22

2007-05-22

Le, Hoanganh (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

Reexamination Certificate

active

11185498

ABSTRACT:
A biconical antenna according to the present invention includes a columnar dielectric member having frustum-shaped cavities extending respectively from an upper surface and a lower surface toward a center of the columnar dielectric member, wherein flat surfaces of apex portions of the frustum-shaped cavities are parallel and in opposition to one another; a frustum-shaped feeder portion made of a conductive film provided on an inner surface of the upper cavity; and a frustum-shaped ground portion made of a conductive film provided on an inner surface of the lower cavity. The present invention realizes a more compact biconical antenna by filling the dielectric member between the feeder portion and the ground portion of the biconical antenna.

REFERENCES:
patent: 3942180 (1976-03-01), Rannou et al.
patent: 4608572 (1986-08-01), Blakney et al.
patent: 5523767 (1996-06-01), McCorkle
patent: 5600331 (1997-02-01), Buralli
patent: 6052889 (2000-04-01), Yu et al.
patent: 6972726 (2005-12-01), Sato et al.
patent: 7087530 (2006-08-01), Motonari et al.
patent: H09-008550 (1997-10-01), None
patent: A2001-185942 (2001-06-01), None

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