Title:
FILM FOR MILLIMETER-WAVE ANTENNA
Document Type and Number:
WIPO Patent Application WO/2018/020745
Kind Code:
A1
Abstract:
The present invention provides a low-dielectric porous polymer film which has low permittivity at high frequencies of millimeter waves, and which is thus useful as a sheet for a millimeter-wave antenna. This low-dielectric porous polymer film is obtained by dispersedly forming fine holes in a film composed of a polymer material, wherein the film has a void content of 60% or more, and the holes have an average hole diameter of 10 μm or less.
Inventors:
NAKAMURA MASAYOSHI (JP)
HODONO MASAYUKI (JP)
ITO TAKAHIKO (JP)
NAGAOKA NAOKI (JP)
HISHIKI TOMOAKI (JP)
HODONO MASAYUKI (JP)
ITO TAKAHIKO (JP)
NAGAOKA NAOKI (JP)
HISHIKI TOMOAKI (JP)
Application Number:
PCT/JP2017/014371
Publication Date:
February 01, 2018
Filing Date:
April 06, 2017
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C08J9/26; C08G73/10
Domestic Patent References:
| WO2012105678A1 | 2012-08-09 |
Foreign References:
| JP2002146085A | 2002-05-22 | |||
| JP2008222836A | 2008-09-25 | |||
| JP2007077275A | 2007-03-29 |
Other References:
TAKESHI ARAI ET AL.: "Stability of Dielectric Characteristics of Thermosetting PPE Resin Laminate", THE JOURNAL OF JAPAN INSTITUTE FOR INTERCONNECTING AND PACKAGING ELECTRONIC CIRCUITS, vol. 10, no. 2, 1995, pages 113 - 117, XP055459525
See also references of EP 3489288A4
See also references of EP 3489288A4
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (JP)
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