Title:
READING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/176131
Kind Code:
A1
Abstract:
This reading device (100) comprises: an antenna element (115f); a substrate (150) having a communication circuit (120) and a ground plane (GND); a connection member (125f) electrically connecting the communication circuit and the antenna element; and a housing (160) having a plate-like outer shape whose dimension in a thickness direction is smaller than the dimensions in a height direction and a width direction. The antenna element is spaced apart from the substrate on one side in the thickness direction. The housing has a first surface portion (160B) that covers the substrate from the other side in the thickness direction. When a distance in the thickness direction from a feeding point (FP) where the connection member contacts the antenna element to the ground plane is defined as a first distance (D1), and a distance in the thickness direction between the substrate and the first surface portion is defined as a second distance (D2), the first distance is greater than the second distance.
Inventors:
MUROFUSHI MITSUHIDE (JP)
NAKAO KENICHI (JP)
NAKAO KENICHI (JP)
Application Number:
PCT/JP2023/001360
Publication Date:
September 21, 2023
Filing Date:
January 18, 2023
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
H01Q1/52; G06K7/10; H01Q1/22; H01Q1/24; H01Q1/38; H01Q1/40; H01Q5/40
Foreign References:
| JP2016206958A | 2016-12-08 | |||
| JP2013162195A | 2013-08-19 | |||
| JP2007088661A | 2007-04-05 |
Attorney, Agent or Firm:
CHIKASHIMA & ASSOCIATES (JP)
Download PDF:
Previous Patent: LAMINATE MOLDING SYSTEM AND LAMINATE MOLDING METHOD
Next Patent: DEFECT CLASSIFICATION DEVICE
Next Patent: DEFECT CLASSIFICATION DEVICE