Title:
TRANSMISSION DEVICE AND SIGNAL TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/113178
Kind Code:
A1
Abstract:
This transmission device comprises: a multiple-circular array antenna provided with a plurality of circular array antennas having a plurality of antenna elements arranged in a circular form; a plurality of Butler circuits connected to the multiple-circular array antenna; and one or more Butler circuits connected to one or more linear array antennas configured from some of the antenna elements in the multiple-circular array antenna.
Inventors:
YAMADA TAKAYUKI (JP)
LEE DOOHWAN (JP)
MASHINO JUN (JP)
SASAKI HIROFUMI (JP)
YAGI YASUNORI (JP)
SEMOTO TOMOKI (JP)
LEE DOOHWAN (JP)
MASHINO JUN (JP)
SASAKI HIROFUMI (JP)
YAGI YASUNORI (JP)
SEMOTO TOMOKI (JP)
Application Number:
PCT/JP2020/043702
Publication Date:
June 02, 2022
Filing Date:
November 24, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04J99/00; H01Q3/26; H01Q21/20
Domestic Patent References:
| WO2017125969A1 | 2017-07-27 |
Foreign References:
| JPS5951372A | 1984-03-24 |
Other References:
SASAKI, HIROFUMI: "Experimental Investigation of OAM-MIMO multiplexing technique for ultra high capacity wireless transmission", IEICE TECHNICAL REPORT, vol. 118, no. 475 (SR2018-140), 27 February 2019 (2019-02-27), JP , pages 111 - 116, XP009537450, ISSN: 2432-6380
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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