Is a
Patent attributes
Patent Applicant
0
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takayuki Hirabayashi0
Yu Togasaki0
Hiroyuki Shigei0
Osamu Kozakai0
Rikiya Ishikawa0
Date of Patent
April 9, 2019
0Patent Application Number
153084690
Date Filed
April 22, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An antenna device includes at least one antenna that transmits and receives communication signals, and a helix ground plate connected to the at least one antenna. The helix ground plate includes an overlapping part, and has a length of at least one-quarter of a wavelength of a lowest-frequency in the communication signals.
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