Title:
アレイアンテナ及びセクタアンテナ
Document Type and Number:
Japanese Patent JP6267005
Kind Code:
B2
Abstract:
This array antenna (100) is provided with: a reflection plate (200); low-frequency-band dipole elements (110-1 to 110-3) arrayed in the vertical direction above the reflection plate (200); high-frequency-band dipole elements (120-1 to 120-6) similarly arrayed in the vertical direction above the reflection plate (200); and conductors (130-1 to 130-4) configured from a conductive material and similarly arrayed in the vertical direction above the reflection plate (200). The low-frequency-band dipole elements (110) and high-frequency-band dipole elements (120) are arrayed in an intermixed manner, and the conductors (130) are disposed at the side of the high-frequency-band dipole elements (120) at which the low-frequency-band dipole elements (110) are not disposed. As a result, in the transmission/reception of radio waves in a plurality of frequency bands, an effect of the transmission/reception of radio waves at one frequency band by an antenna element on the directivity or the like in another frequency band is suppressed.
Inventors:
Mizumura Shin
Nakamura Takuto
Zhang Peng
Taisuke Ihara
Hiroyuki Kawai
Tatsuhiko Yoshihara
Nakamura Takuto
Zhang Peng
Taisuke Ihara
Hiroyuki Kawai
Tatsuhiko Yoshihara
Application Number:
JP2014041788A
Publication Date:
January 24, 2018
Filing Date:
March 04, 2014
Export Citation:
Assignee:
Nippon Denko Co., Ltd.
Ntt docomo, Inc.
Ntt docomo, Inc.
International Classes:
H01Q15/14; H01Q1/52; H01Q21/08; H01Q21/28
Domestic Patent References:
| JP2000174549A | ||||
| JP2002026642A | ||||
| JP2000307337A | ||||
| JP2012142879A |
Attorney, Agent or Firm:
Jiro Kobe
Kato Sasaya
Takehiko Sunada
Kato Sasaya
Takehiko Sunada