Title:
FILTER DEVICE AND FILTER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/047218
Kind Code:
A1
Abstract:
A filter device 10 outputs, as an output signal, a signal component in a predetermined frequency band included in a pulse signal. The filter device 10 is provided with a filter circuit 3 in which a stop band in which signal passage is stopped is set to include the predetermined frequency band, and a circulator 4 which takes out a reflected signal generated in the filter circuit 3. The filter device outputs, as the output signal, the signal taken out by the circulator 4 when the pulse signal is given to the filter circuit 3.
Inventors:
MAEHATA TAKASHI (JP)
Application Number:
PCT/JP2015/066889
Publication Date:
March 31, 2016
Filing Date:
June 11, 2015
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H03H1/00; H01P1/20; H03H7/30; H03H7/52; H04B1/04
Foreign References:
| JPS4861047A | 1973-08-27 | |||
| US4538123A | 1985-08-27 | |||
| JP2005268898A | 2005-09-29 | |||
| JP4542158B2 | 2010-09-08 | |||
| JP2013509019A | 2013-03-07 | |||
| JPS6121609A | 1986-01-30 | |||
| JP2007208350A | 2007-08-16 | |||
| US20110080856A1 | 2011-04-07 | |||
| US20110080229A1 | 2011-04-07 |
Attorney, Agent or Firm:
SunCrest Patent and Trademark Attorneys (JP)
Patent business corporation Sun Crest international patent firm (JP)
Patent business corporation Sun Crest international patent firm (JP)
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