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Patent Searching and Data


Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/148597
Kind Code:
A1
Abstract:
An antenna device includes a dielectric substrate and a conductor. The antenna device is provided with: an antenna element disposed on a principal surface of the dielectric substrate and having directionality forward of the principal surface; and a directionality characteristics control member comprising a side wall portion protruding forward with respect to the principal surface at least on one side of the directionality characteristics of the antenna element with respect to the antenna element, and a roof portion protruding from the side wall portion in the direction of the antenna element at a predetermined angle greater than 70°and smaller than 120°with respect to the side wall portion and by a length such that an orthogonal projection onto the principal surface does not reach the antenna element, the directionality characteristics control member reflecting or absorbing radio waves.

Inventors:
FUJITA AKIHISA (JP)
KONDO ASAHI (JP)
MATSUZAWA SHINICHIRO (JP)
Application Number:
PCT/JP2014/057708
Publication Date:
September 25, 2014
Filing Date:
March 20, 2014
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H01Q15/18; G01S7/02; G01S7/03; H01Q21/06
Foreign References:
JP2001127523A2001-05-11
JPH04120903A1992-04-21
JPH09307343A1997-11-28
Attorney, Agent or Firm:
KIKUCHI, YASUHIRO (JP)
Yasuhiro Kikuchi (JP)
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