ELECTROMAGNETIC LENS ARRAY ANTENNA DEVICE - SUMITOMO ELECTRIC INDUSTRIES

Title:

ELECTROMAGNETIC LENS ARRAY ANTENNA DEVICE

Document Type and Number:

WIPO Patent Application WO/2004/109856

Kind Code:

A1

Abstract:

A multi-beam lens antenna for individual communication with communication satellites spaced at small elongations. The multi-beam antenna comprises antenna elements (3) each of which is composed of a waveguide having an opening at the end and a dielectric body (6) disposed at the end, a hemispherical Luneberg electromagnetic lens, and a reflective plate attached to the circular opening of the hemispherical electromagnetic lens and adapted for reflecting a radio wave incoming from the sky or emitted toward a target. The waveguides are preferably rectangular waveguides (4) rather than circular waveguides (5). The dielectric bodies (6) are preferably tapered.

Inventors:

IMAI KATSUYUKI (JP)
KURODA MASATOSHI (JP)

Application Number:

PCT/JP2004/007613

Publication Date:

December 16, 2004

Filing Date:

June 02, 2004

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)
IMAI KATSUYUKI (JP)
KURODA MASATOSHI (JP)

International Classes:

H01Q13/02; H01Q13/24; H01Q13/06; H01Q19/06; H01Q19/08; H01Q19/10; H01Q25/00; (IPC1-7): H01Q13/02

Domestic Patent References:

WO2003030303A1	2003-04-10
WO2003030303A1	2003-04-10

Foreign References:

JPH10163730A	1998-06-19
JP2002232230A	2002-08-16
JPH06504659A	1994-05-26
JPH1127037A	1999-01-29
JP2001284950A	2001-10-12
US4468672A	1984-08-28
JPS53146557A	1978-12-20
JPS5755321B2	1982-11-24
JP2001068919A	2001-03-16
JPH05308220A	1993-11-19
JPS5994902A	1984-05-31
JPH0474005A	1992-03-09

Other References: