Title:
ANTENNA UNIT AND TRANSMITTER
Document Type and Number:
WIPO Patent Application WO/2023/032187
Kind Code:
A1
Abstract:
This antenna unit (20) is provided to a transmitter (10) configured so as to transmit data. The antenna unit (20) includes a loop antenna (25) and a spiral-shaped passive element (50). The loop antenna (25) is disposed in a casing (11) of the transmitter (10) and is supplied with power. The spiral-shaped passive element (50) is disposed outside of the casing (11). The spiral-shaped passive element (50) is electromagnetically coupled to the loop antenna (25) and has two open ends.
Inventors:
KAWAI TOMOYA (JP)
Application Number:
PCT/JP2021/032611
Publication Date:
March 09, 2023
Filing Date:
September 06, 2021
Export Citation:
Assignee:
TAIHEIYO KOGYO KK (JP)
International Classes:
H01Q7/00; H01Q9/02
Domestic Patent References:
| WO2009060735A1 | 2009-05-14 |
Foreign References:
| EP3330108A1 | 2018-06-06 | |||
| JP2005134942A | 2005-05-26 | |||
| JP2013214940A | 2013-10-17 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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