Title:
ANTENNA DEVICE, RADIO TRANSMITTER, RADIO RECEIVER, RADIO COMMUNICATION SYSTEM, AND ANTENNA DIAMETER ADJUSTMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/255594
Kind Code:
A1
Abstract:
The present invention enables adjustment of an antenna diameter without the need for part replacements. An antenna device (10) includes a plurality of antenna elements which emit radio signals that are transmitted toward an opposing antenna device. The plurality of antenna elements each have a radiator (11) and a reflector (12). The radiator (11) outputs radio signals from the central side of a circular configuration along a radial direction of the circular configuration. The reflector (12) reflects the radio signals output from the radiator (11) toward the opposing antenna device. The antenna device (10) is configured such that a distance between the center of the circular configuration and a place at the reflector (12) where the radio signals are reflected is adjustable along the radial direction of the circular configuration.
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Inventors:
MIYAMOTO HIROAKI (JP)
Application Number:
PCT/JP2020/019213
Publication Date:
December 24, 2020
Filing Date:
May 14, 2020
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01Q1/24; H01Q3/01; H01Q13/02; H01Q15/18; H01Q19/17; H04B1/04; H04B1/16
Domestic Patent References:
| WO2016104863A1 | 2016-06-30 | |||
| WO2019059409A1 | 2019-03-28 |
Foreign References:
| US20150372398A1 | 2015-12-24 | |||
| JP2016513432A | 2016-05-12 | |||
| JP2017224988A | 2017-12-21 |
Other References:
LEE DOOHWAN, SASAKI HIROFUMI, FUKUMOTO HIROYUKI, YAGI YASUNORI, KAHO TAKANA, SHIBA HIROYUKI, SHIMIZU TAKASHI: "An Experimental Demonstration of 28 GHz Band Wireless OAM-MIMO (Orbital Angular Momentum Multi-input and Multi-output) Multiplexing", IEEE 87TH VEHICULAR TECHNOLOGY CONFERENCE, 26 July 2018 (2018-07-26), pages 1 - 5, XP033377616, Retrieved from the Internet
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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