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Title:
ANTENNA ASSEMBLY, MONITOR, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2007/119317
Kind Code:
A1
Abstract:
An inexpensive antenna assembly having no mechanical working portion and capable of forming a plurality of beam directions over a wide range. The antenna assembly comprises a plurality of antenna elements (600, 610) each having a feeding portion formed on a dielectric substrate (630), and a reflector (620) having a plurality of reflecting portions opposing the antenna elements (600, 610), respectively. Each of the reflecting portions is parallel with each of the opposing antenna elements (600, 610) and beam direction of each of the antenna elements (600, 610) is differentiated by differentiating the distance between each of the antenna elements (600, 610) and the opposing reflecting portion for the angle of elevation having as reference the plane of the dielectric substrate (630) on which each antenna element (600, 610) is formed.Wide directivity is achieved by combining the beam directions of different angle of elevation of each antenna element (600, 610).

Inventors:
YOSHIDA, Takashi (())
吉田 崇 (())
Application Number:
JP2007/054560
Publication Date:
October 25, 2007
Filing Date:
March 08, 2007
Export Citation:
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Assignee:
Matsushita Electric Industrial Co., Ltd. (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 5718501, JP)
松下電器産業株式会社 (〒01 大阪府門真市大字門真1006番地 Osaka, 5718501, JP)
YOSHIDA, Takashi (())
International Classes:
H01Q21/08; B60R11/02; B60R21/00; G01S7/03; G01S13/93; H01Q3/24; H01Q7/00; H01Q13/08; H01Q19/10
Domestic Patent References:
2006-03-23
2005-12-08
Foreign References:
JP2005072915A2005-03-17
JP2003060427A2003-02-28
JP2000307341A2000-11-02
JP2004096259A2004-03-25
JPH066130A1994-01-14
JPH03103609U1991-10-28
JPH07303005A1995-11-14
JP2004289331A2004-10-14
JP2000114857A2000-04-21
JP2001332927A2001-11-30
JPH02287180A1990-11-27
JP2005072915A2005-03-17
Other References:
UNO H.: 'Ukai Soshi Soka Heimen Loop Antenna ni Kansuru Kiso Kento (A study of loop antenna with detour elements)' 2003 NEN IEICE COMMUNICATIONS SOCIETY 1-B-1-180 10 September 2003, XP003018280
UNO H.: 'WLAN-yo Ukai Soshi Soka Heimen Loop Antenna' IEICE TECHNICAL REPORT RCS2003-163 13 November 2003, XP002996318
'Institute of Electronics, Information and Communication Engineers', 01 October 1996 article 'Radar Technology (Revised', pages 117 - 137
Attorney, Agent or Firm:
MATSUDA, Masamichi (Shin-Osaka Ikushima bldg, 1-3 Miyahara 5-chome,Yodogawa-k, Osaka-shi Osaka 03, 5320003, JP)
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