Title:
ANTENNA ASSEMBLY AND MULTIBEAM ANTENNA ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2006/030583
Kind Code:
A1
Abstract:
There is provided an antenna having a small planar structure which can easily be mounted in a small wireless unit, and capable of forming a main beam having a vertically polarized wave in the direction of high elevation angle and in the direction of low elevation angle. Slot elements (13A, 13B) of about half-wavelength are arranged in parallel at a predetermined interval d1 on the surface of a substrate (11), and a reflector (14) is arranged at a predetermined interval h from the mounting surface of the slot elements (13A, 13B). On the rear surface of the substrate (11), parasitic elements (15A-15D) are formed of a copper foil pattern and arranged to perpendicularly intersect the slot elements (13A, 13B). A switch element (16A) is connected to the parasitic elements (15A, 15B) and a switch element (16B) is connected to the parasitic elements (15C, 15D).
Inventors:
UNO HIROYUKI
SAITO YUTAKA
OHTA GENICHIRO
KOYANAGI YOSHIO
SAITO YUTAKA
OHTA GENICHIRO
KOYANAGI YOSHIO
Application Number:
PCT/JP2005/013380
Publication Date:
March 23, 2006
Filing Date:
July 21, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
UNO HIROYUKI
SAITO YUTAKA
OHTA GENICHIRO
KOYANAGI YOSHIO
UNO HIROYUKI
SAITO YUTAKA
OHTA GENICHIRO
KOYANAGI YOSHIO
International Classes:
H01Q13/10; H01Q19/17; H01Q3/44; (IPC1-7): H01Q13/10; H01Q3/44; H01Q19/17
Foreign References:
| JP2005210521A | 2005-08-04 | |||
| JP2005072915A | 2005-03-17 | |||
| JP2003142919A | 2003-05-16 | |||
| JPS5546365U | 1980-03-26 | |||
| JP2002084130A | 2002-03-22 |
Other References:
HIROYUKI UNO ET AL: "Slot Soshi o Mochiita Chilled Beam Kirikaesshiki Sector Antenna. (A Tilt Beam Switching Sector Antenna using Slot Elements)", 2004 NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI, TSUSHIN 1, 8 March 2004 (2004-03-08), pages 201 (B-1-201), XP002998953
HIROYUKI UNO ET AL: "Beam Kirikae Kairo o Jisso shita Chilled Beam Slot Antenna. (Tilt Beam Slot Antenna with Beam Switching Circuit)", 2004 NEN IEICE COMMUNICATIONS SOCIETY CONFERENCE, 8 September 2004 (2004-09-08), pages 141 (B-1-141), XP002998954
HIROYUKI UNO ET AL: "Beam Kirikae Kairo o Jisso shita Chilled Beam Slot Antenna. (Tilt Beam Slot Antenna with Beam Switching Circuit)", 2004 NEN IEICE COMMUNICATIONS SOCIETY CONFERENCE, 8 September 2004 (2004-09-08), pages 141 (B-1-141), XP002998954
Attorney, Agent or Firm:
Takamatsu, Takeshi (7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, JP)
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