Title:
BAND PASS FILTER
Document Type and Number:
WIPO Patent Application WO/2019/171769
Kind Code:
A1
Abstract:
The purpose of the present invention is a band pass filter in which no decrease in the S/N occurs. Provided is a band pass filter to be inserted between a signal source and a load circuit, the band pass filter being provided with a plurality of first transmission line parts having a first characteristic impedance and a plurality of second transmission line parts having a second characteristic impedance different from the first characteristic impedance. The first transmission line parts and the second transmission line parts are alternately disposed. The initial stage of the first transmission line parts is connected to the signal source, and the final stage of the second transmission line parts is connected to the load circuit.
More Like This:
| JPH0472804 | STRIP LINE FILTER |
| WO/2007/088230 | MICROWAVE AND MILLIMETER WAVE FILTER |
| JPS60100802 | DISTRIBUTION CONSTANT TYPE FILTER |
Inventors:
ABE MASAYUKI (JP)
TOKI HIROSHI (JP)
MIYAUCHI KIYOTAKA (JP)
TOKI HIROSHI (JP)
MIYAUCHI KIYOTAKA (JP)
Application Number:
PCT/JP2019/001028
Publication Date:
September 12, 2019
Filing Date:
January 16, 2019
Export Citation:
Assignee:
UNIV OSAKA (JP)
International Classes:
H01P1/203
Domestic Patent References:
| WO2017123586A1 | 2017-07-20 | |||
| WO2008114519A1 | 2008-09-25 |
Foreign References:
| JPH0774506A | 1995-03-17 | |||
| US20040155726A1 | 2004-08-12 | |||
| JP2008029026A | 2008-02-07 | |||
| JPH08154006A | 1996-06-11 | |||
| JP2001320202A | 2001-11-16 | |||
| JPH028203U | 1990-01-19 | |||
| US8766747B2 | 2014-07-01 | |||
| JP2016012853A | 2016-01-21 |
Attorney, Agent or Firm:
ORISAKA Shigeki (JP)
Download PDF:
Previous Patent: POWER DISTRIBUTION NETWORK MONITORING SYSTEM
Next Patent: CHANGE-OVER SWITCH AND SWITCH DEVICE
Next Patent: CHANGE-OVER SWITCH AND SWITCH DEVICE