Title:
MULTIBAND ANTENNA AND WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/056437
Kind Code:
A1
Abstract:
When a plurality of antenna elements corresponding to respective different frequency bands are closely disposed, the performance (the band, the radiating pattern, and so on) of each antenna element may deteriorate. In order to solve the problem, a multiband antenna according to the present invention is provided with: a conductive reflection plate; a frequency selective plate that is disposed so as to at least partially faces the conductive reflection plate, that allows electromagnetic waves in a first frequency band to pass therethrough, that reflects electromagnetic waves in a second frequency band that is a higher frequency band than the first frequency band, and that has a plurality of openings; a plurality of first antenna elements that are disposed in a region sandwiched between the conductive reflection plate and the frequency selective plate and that correspond to a first frequency included in the first frequency band; and a plurality of second antenna elements that are disposed on a surface opposite the surface of the frequency selective plate facing the first antenna elements, to which electricity is supplied through feeders passing through the openings, and that correspond to a second frequency included in the second frequency band.
Inventors:
KOSAKA KEISHI (JP)
TOYAO HIROSHI (JP)
TOYAO HIROSHI (JP)
Application Number:
PCT/JP2016/004216
Publication Date:
April 06, 2017
Filing Date:
September 15, 2016
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01Q15/14; H01Q3/44; H01Q19/17; H01Q19/18
Domestic Patent References:
| WO2015029383A1 | 2015-03-05 |
Foreign References:
| JPH09284040A | 1997-10-31 | |||
| JPH0582120U | 1993-11-05 | |||
| JPH0582119U | 1993-11-05 | |||
| JP2015046846A | 2015-03-12 |
Attorney, Agent or Firm:
SHIMOSAKA, Naoki (JP)
Download PDF: