Title:
ANTENNA
Document Type and Number:
WIPO Patent Application WO/2018/225537
Kind Code:
A1
Abstract:
An antenna (10) is provided with: a dielectric base material (20); a radiation element (30); a passive element (40); and a grounding conductor (50). The dielectric base material (20) is shaped like a plate having a front surface and a back surface facing each other. The radiation element (30) is disposed between the front surface and the back surface of the dielectric base material (20) and transmits and receives a high-frequency signal having a first frequency. The passive element (40) is disposed on the front surface of the dielectric base material (20) and transmits and receives a high-frequency signal having a second frequency. The grounding conductor (50) is disposed on the back surface of the dielectric base material (20). The second frequency is a frequency lower than the first frequency. The dielectric base material (20) has, at an intermediate position in a thickness direction orthogonal to the front surface and the back surface, an electric field interface (200) for reflecting the high-frequency signal having the second frequency.
Inventors:
IZAWA MASAHIRO (JP)
YAMADA YOSHIKI (JP)
YAMADA YOSHIKI (JP)
Application Number:
PCT/JP2018/020132
Publication Date:
December 13, 2018
Filing Date:
May 25, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q13/08; H01Q1/38; H01Q5/378; H01Q21/06
Domestic Patent References:
| WO2011118710A1 | 2011-09-29 |
Foreign References:
| JP2017092588A | 2017-05-25 | |||
| JPS6048294U | 1985-04-04 | |||
| US20070126638A1 | 2007-06-07 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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