Title:
パッチアンテナ装置
Document Type and Number:
Japanese Patent JP6935474
Kind Code:
B2
Abstract:
A patch antenna device configured to receive a radio communication signal includes a circuit board, a patch antenna, and a parasitic element. The circuit board has a signal processing circuit placed thereon. The patch antenna is stacked on the circuit board and has a quadrangular radiation element. The parasitic element is disposed above the patch antenna so as to improve antenna gain characteristics of the patch antenna and configured such that the length of the upper side of the parasitic element is shorter than the width in a plan view of the radiation element of the patch antenna and that the length between the upper and lower sides of the parasitic element is longer than the length between the upper and lower sides of the radiation element of the patch antenna.
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Inventors:
Ryohei Hasegawa
Application Number:
JP2019186574A
Publication Date:
September 15, 2021
Filing Date:
October 10, 2019
Export Citation:
Assignee:
Harada Industry Co., Ltd.
International Classes:
H01Q13/08; H01Q21/08
Domestic Patent References:
| JP2019161312A | ||||
| JP2019103037A | ||||
| JP2017191961A | ||||
| JP2013183388A | ||||
| JP2007036930A | ||||
| JP2006121660A |
Foreign References:
| US20100171675 | ||||
| US20100073238 |
Attorney, Agent or Firm:
Ihei Ihei