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公开(公告)号:US20180083340A1
公开(公告)日:2018-03-22
申请号:US15818933
申请日:2017-11-21
Inventor: Kenji NISHIKAWA , Yu ONO , Shingo SUMI , Yasunori KOMUKAI , Yukinari TAKAHASHI , Toshiharu ISHIMURA
CPC classification number: H01Q1/2258 , H01Q1/243 , H01Q1/245 , H01Q1/38 , H01Q1/44 , H01Q1/48 , H01Q5/385 , H01Q7/00 , H01Q9/0421 , H01Q9/30 , H01Q9/42
Abstract: An antenna unit includes a plate-shaped dielectric substrate, as well as an antenna element and a stub element. The dielectric substrate has a first edge extending along a longitudinal direction of the dielectric substrate and a second edge extending along the longitudinal direction of the dielectric substrate, and the second edge is opposite to the first edge. The antenna element is disposed along the longitudinal direction of the dielectric substrate. The Antenna element has a first end containing a feedpoint and a second end containing an open end. The stub element is disposed between a section of the antenna element having a predetermined length containing the first end of the antenna element and the first edge of the dielectric substrate along the longitudinal direction of the dielectric substrate. The stub element has a first end connected to a reference potential and a second end containing an open end.
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公开(公告)号:US20210234255A1
公开(公告)日:2021-07-29
申请号:US17233495
申请日:2021-04-18
Inventor: Kenji NISHIKAWA , Yu ONO , Shingo SUMI , Yasunori KOMUKAI , Yukinari TAKAHASHI , Toshiharu ISHIMURA
IPC: H01Q1/22 , H01Q1/48 , H01Q1/44 , H01Q1/24 , H01Q9/30 , H01Q5/385 , H01Q9/42 , H01Q1/38 , H01Q7/00 , H01Q9/04
Abstract: An antenna unit includes a plate-shaped dielectric substrate, as well as an antenna element and a stub element. The dielectric substrate has a first edge extending along a longitudinal direction of the dielectric substrate and a second edge extending along the longitudinal direction of the dielectric substrate, and the second edge is opposite to the first edge. The antenna element is disposed along the longitudinal direction of the dielectric substrate. The Antenna element has a first end containing a feedpoint and a second end containing an open end. The stub element is disposed between a section of the antenna element having a predetermined length containing the first end of the antenna element and the first edge of the dielectric substrate along the longitudinal direction of the dielectric substrate. The stub element has a first end connected to a reference potential and a second end containing an open end.
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公开(公告)号:US20200153097A1
公开(公告)日:2020-05-14
申请号:US16744026
申请日:2020-01-15
Inventor: Masashi KOSHI , Takahiro OCHI , Shingo SUMI , Kenji NISHIKAWA
Abstract: A multiband compatible antenna that resonates at a first frequency and a second frequency includes: a planar conductor including a feeding portion to which a signal is supplied, a grounding portion, and a slit between the feeding portion and grounding portion. The slit includes a first slit portion extending in a first direction and a second slit portion extending in a second direction intersecting the first direction from an end of the first slit portion. The first slit portion is disposed closer to one edge than a center of the planar conductor in the second direction, and the feeding portion is disposed to a side of the first slit portion closer to the one edge. The planar conductor includes a first element portion and a second frequency portion that resonate at the first frequency and the second frequency, respectively. The second slit portion is disposed in the first element portion.
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公开(公告)号:US20200235460A1
公开(公告)日:2020-07-23
申请号:US16840703
申请日:2020-04-06
Inventor: Kenji NISHIKAWA , Yu ONO , Shingo SUMI , Yasunori KOMUKAI , Yukinari TAKAHASHI , Toshiharu ISHIMURA
IPC: H01Q1/22 , H01Q9/42 , H01Q1/24 , H01Q5/385 , H01Q9/30 , H01Q1/44 , H01Q9/04 , H01Q7/00 , H01Q1/38 , H01Q1/48
Abstract: An antenna unit includes a plate-shaped dielectric substrate, as well as an antenna element and a stub element. The dielectric substrate has a first edge extending along a longitudinal direction of the dielectric substrate and a second edge extending along the longitudinal direction of the dielectric substrate, and the second edge is opposite to the first edge. The antenna element is disposed along the longitudinal direction of the dielectric substrate. The Antenna element has a first end containing a feedpoint and a second end containing an open end. The stub element is disposed between a section of the antenna element having a predetermined length containing the first end of the antenna element and the first edge of the dielectric substrate along the longitudinal direction of the dielectric substrate. The stub element has a first end connected to a reference potential and a second end containing an open end.
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公开(公告)号:US20180278287A1
公开(公告)日:2018-09-27
申请号:US15990098
申请日:2018-05-25
Inventor: Kenji NISHIKAWA , Shingo SUMI , Hiroaki OHMORI , Toshiharu ISHIMURA
IPC: H04B1/3827 , H01Q9/42 , H01Q1/48 , H01Q5/314 , H01Q5/392
CPC classification number: H04B1/3838 , H01Q1/243 , H01Q1/48 , H01Q5/314 , H01Q5/321 , H01Q5/328 , H01Q5/335 , H01Q5/371 , H01Q5/385 , H01Q5/392 , H01Q9/42
Abstract: A first antenna element includes a first end connected to a feedpoint, a second end connected to a connection point on a ground conductor, and a fold disposed between the first and the second ends. A part of a segment between the first end and the fold of the first antenna element is disposed along the ground conductor. A second antenna element branches off the first antenna element. The second antenna element is disposed between the part of the first antenna element disposed along the ground conductor and the ground conductor. The segment between the first end and the fold of the first antenna element resonates at a first frequency. The second antenna element and a segment between the first end and a branch point of the first antenna element resonate at a second frequency that is higher than the first frequency.
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公开(公告)号:US20180277951A1
公开(公告)日:2018-09-27
申请号:US15990006
申请日:2018-05-25
Inventor: Kenji NISHIKAWA , Shingo SUMI , Yasunori KOMUKAI , Yukinari TAKAHASHI , Yu ONO
IPC: H01Q5/307 , H01Q1/48 , H04B1/3827
CPC classification number: H01Q5/307 , H01Q1/243 , H01Q1/48 , H01Q5/328 , H01Q5/371 , H01Q5/378 , H01Q5/385 , H01Q9/30 , H01Q9/42 , H04B1/3838
Abstract: An antenna unit includes a conductive ground plate, a first antenna element, and a second antenna element. The first antenna element includes a first end connected to a feedpoint and a second end containing an open end. A part of the first antenna element is disposed along the conductive ground plate. The second antenna element branches off the first antenna element at a branch point on the first antenna element. The second antenna element is disposed between the part of the first antenna element disposed along the conductive ground plate and the conductive ground plate. The first antenna element resonates at a first frequency. The second antenna element and a segment between the first end and the branch point of the first antenna element resonate at a second frequency that is higher than the first frequency.
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