Title:
ULTRA-WIDE BAND ANTENNA CONFIGURATION FOR PHYSICAL ACCESS CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2023169173
Kind Code:
A
Abstract:
To provide a reader, such as a reader for a physical access control system.SOLUTION: The reader can include first and second antennas, each designed or configured to receive ultra-wide band (UWB) signals. The reader can also include a mounting plane configured to mount the reader on a surface. An axis aligning the first and second antennas can be arranged substantially perpendicularly relative to the mounting plane. The reader comprises a structure that can be arranged between the first and second antennas. The structure has a thickness that defines a distance between the first and second antennas of less than a half wavelength of the UWB signal through air (λA/2). The structure is configured to slow down propagation of electromagnetic waves passing through the structure so as to provide an effective separation distance of the first and second antennas of at least a half wavelength of the UWB signal through air (λA/2).SELECTED DRAWING: Figure 6
Inventors:
HANS-JUERGEN PIRCH
Application Number:
JP2023137333A
Publication Date:
November 29, 2023
Filing Date:
August 25, 2023
Export Citation:
Assignee:
ASSA ABLOY AB
International Classes:
E05B49/00; G01S5/12; H01Q21/08; H04W12/06; H04W64/00
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Atsushi Honda
Hironobu Onda
Atsushi Honda