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Title:
REAL-TIME TRANSMISSION/RECEPTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/176845
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent generation of noise due to direct reception of an electromagnetic wave transmitted from a transmission antenna in a real-time transmission/reception device for transmitting and receiving in real time the electromagnetic wave having high frequency equal to or larger than a mm-wave region, and to thereby obtain the real-time transmission/reception device capable of transmitting and receiving the electromagnetic wave at high accuracy. Provided is a real-time transmission/reception device 100 that comprises a transmission antenna 20 and a reception antenna 30, and simultaneously performs transmission and reception using an electromagnetic wave having high frequency equal to or larger than the mm-wave region. Between an arrangement position of the transmission antenna and an arrangement position of the reception antenna, an electromagnetic-wave absorbing body 40 that absorbs an electromagnetic wave having frequency equal to or larger than the mm-wave region is arranged. A gap D between an antenna element 21 of the transmission antenna and the electromagnetic-wave absorbing body with respect to frequency λ of the electromagnetic wave absorbed by the electromagnetic-wave absorbing body satisfies a relation of D > (λ/2π).

Inventors:
FUJITA Masao
HIROI Toshio
Application Number:
JP2019/009641
Publication Date:
September 19, 2019
Filing Date:
March 11, 2019
Export Citation:
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Assignee:
MAXELL HOLDINGS, LTD. (1 Koizumi, Oyamazaki Oyamazaki-cho Otokuni-gu, Kyoto 25, 〒6188525, JP)
International Classes:
G01S7/03; H01Q1/52; H01Q17/00
Domestic Patent References:
WO2015079812A12015-06-04
WO2018016522A12018-01-25
Foreign References:
JP2010210297A2010-09-24
US6100840A2000-08-08
JP2005249659A2005-09-15
JP2004325160A2004-11-18
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (26th Floor, OAP TOWER 8-30, Tenmabashi 1-chome, Kita-ku, Osaka-sh, Osaka 26, 〒5306026, JP)
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