Title:
ANTENNA DEVICE AND RADAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/090006
Kind Code:
A1
Abstract:
In this antenna device, a patch antenna is configured by providing a ground plane and a plurality of radiating elements on a board. A dielectric layer is fixed to the upper surfaces of the radiating elements and to the board so as to cover the plurality of radiating elements. A dielectric member is disposed on the dielectric layer. The dielectric member comprises: a plate-shaped part spaced apart from the dielectric layer; a plurality of protrusions protruding from the plate-shaped part toward respective ones of the plurality of radiating elements; and fixture parts that are disposed in areas not overlapping with the plurality of radiating elements in a plan view and that protrude from the plate-shaped part toward the board. The relative positions of the plurality of protrusions with respect to the radiating elements are fixed by means of the fixture parts.
Inventors:
NISHIDA HIROSHI (JP)
ISHIHARA TAKASHI (JP)
ISHIHARA TAKASHI (JP)
Application Number:
PCT/JP2022/038256
Publication Date:
May 25, 2023
Filing Date:
October 13, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q19/06; G01S7/03; H01Q1/42; H01Q13/08; H01Q21/06; H01Q23/00
Domestic Patent References:
| WO2020066453A1 | 2020-04-02 |
Foreign References:
| JP2005130464A | 2005-05-19 | |||
| JPH02107003A | 1990-04-19 | |||
| JP2004112783A | 2004-04-08 | |||
| JP2003309422A | 2003-10-31 |
Attorney, Agent or Firm:
KITAYAMA Mikio et al. (JP)
Download PDF:
Previous Patent: GRAIN SACCHARIFIED LIQUID AND PRODUCTION METHOD THEREOF
Next Patent: ACTUATOR DEVICE AND LID DEVICE
Next Patent: ACTUATOR DEVICE AND LID DEVICE