Title:
EXPLOSION-PROOF ENCLOSURE
Document Type and Number:
WIPO Patent Application WO/2012/081633
Kind Code:
A1
Abstract:
Provided is an explosion-proof enclosure that allows a radio circuit housed inside the explosion-proof enclosure to transmit/receive a high-frequency signal without installing any external antenna.
The explosion-proof enclosure is equipped with a metal enclosure, a slit functioning as an explosion-proof gap that is formed to penetrate through a wall surface of the enclosure, and a cavity resonator having a built-in antenna that is provided inside the enclosure so as to transmit/receive the high-frequency signal using the slit as a waveguide.
Inventors:
YONEZAWA MASAAKI (JP)
Application Number:
PCT/JP2011/078942
Publication Date:
June 21, 2012
Filing Date:
December 14, 2011
Export Citation:
Assignee:
YOKOGAWA ELECTRIC CORP (JP)
YONEZAWA MASAAKI (JP)
YONEZAWA MASAAKI (JP)
International Classes:
H01Q1/42; H01Q13/10; H02H9/00
Foreign References:
| JP2000004533A | 2000-01-07 | |||
| JP2001156534A | 2001-06-08 | |||
| JP2001177332A | 2001-06-29 | |||
| JP2008078835A | 2008-04-03 | |||
| JP2010136062A | 2010-06-17 |
Other References:
See also references of EP 2654124A4
Attorney, Agent or Firm:
NAITO Teruo et al. (JP)
Teruo Naito (JP)
Teruo Naito (JP)
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Claims: