Title:
ANTENNA
Document Type and Number:
WIPO Patent Application WO/2019/202893
Kind Code:
A1
Abstract:
[Problem] To realize exceptional reception characteristics with respect to a plurality of types of high-frequency signals without changing the external shape. [Solution] An antenna 10 is provided with a substrate 21 a substrate 22, a radiation conductor 31, a radiation conductor 32, and a power supply 50. The substrate 21 has a main surface 211 and a main surface 212, and is composed of a dielectric. The substrate 22 has a main surface 221 and a main surface 222, and is composed of a dielectric. The substrate 22 has the same external shape as the substrate 21 in a plan view. The radiation conductor 31 is formed on the main surface 211 and has a shape corresponding to a first high-frequency signal that uses a first frequency band. The radiation conductor 32 is formed on the main surface 221 and has a shape corresponding to a second high-frequency signal that uses a broadband second frequency band having a lower frequency than the first frequency band. The ratio d/d0 is equal to or greater than 4/3, where the position where the power supply 50 is disposed is a position at a distance of d from the center between the radiation conductor 31 and the radiation conductor 32, and d0 is the distance between the center and the position having the lowest reflection loss with respect to the second high-frequency signal.
Inventors:
ETANI SOICHIRO (JP)
Application Number:
PCT/JP2019/011325
Publication Date:
October 24, 2019
Filing Date:
March 19, 2019
Export Citation:
Assignee:
FURUNO ELECTRIC CO (JP)
International Classes:
H01Q13/08; H01Q5/10; H01Q5/378
Foreign References:
| JPS63106206U | 1988-07-09 | |||
| JPH05211406A | 1993-08-20 |
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