Title:
PLANAR ANTENNA AND HIGH-FREQUENCY MODULE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/192560
Kind Code:
A1
Abstract:
This planar antenna or this high-frequency module comprising the planar antenna has a structure that is easy to adjust for impedance matching over a broad bandwidth, and can be used in frequencies of a quasi-millimeter band or higher bands at low cost. The following is an explanation of an example of a planar antenna 1 in fig. 1. Specifically, the planar antenna 1 has: a radiation element 21 formed on the obverse surface of a printed board 10 in which the reverse surface serves as a ground surface 11; an electricity supply line path 22; a first ground element 23 and a second ground element 24 that are each electrically connected to the ground surface 11, and that oppose each other with the electricity supply line path 22 interposed therebetween; a first passive element 25 that extends from the first ground element 23 so as to surround a portion of the radiation element 21; and a second passive element 26 that extends from the second ground element 24 in the opposite direction to the first passive element 25 so as to surround a portion of the radiation element 21. The first ground element 23 and the second ground element 24 operate as an impedance matching device for the electricity supply line path 22. The first passive element 25 and the second passive element 26 operate as an adjustment device of the signal phase of the radiation element 21.
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Inventors:
MITSUGI KENICHI (JP)
Application Number:
PCT/JP2021/002064
Publication Date:
September 30, 2021
Filing Date:
January 21, 2021
Export Citation:
Assignee:
YOKOWO SEISAKUSHO KK (JP)
International Classes:
H01Q1/24; H01Q5/385; H01Q13/08; H01Q19/02
Foreign References:
| JP2009071793A | 2009-04-02 | |||
| JPH11317614A | 1999-11-16 | |||
| JP2011217204A | 2011-10-27 | |||
| JP2002135027A | 2002-05-10 | |||
| CN102738580A | 2012-10-17 | |||
| JP2001119232A | 2001-04-27 | |||
| JP2006121643A | 2006-05-11 | |||
| JP2011217204A | 2011-10-27 |
Other References:
See also references of EP 4131643A4
Attorney, Agent or Firm:
SUZUKI Seigoh (JP)
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