Title:
BANDPASS FILTER, COMMUNICATION DEVICE, AND RESONATOR
Document Type and Number:
WIPO Patent Application WO/2020/066621
Kind Code:
A1
Abstract:
This bandpass filter (1) is provided with two resonators (8, 10) that comprise a linear conductor (9, 11) provided inside of a dielectric substrate (2), and a pair of input/output lines (13, 14) to which the two resonators (8, 10) are connected in parallel. The resonator (8) is open at both ends of the linear conductor (9). The resonator (10) is provided with vias (12A, 12B) which connect the two ends of the linear conductor (11) to a ground conductor (6) on a first surface (2A) of the dielectric substrate (2). The pair of input/output lines (13, 14) are provided with vias (15A, 15B) which connect to the ground conductor (7) on the second surface (2B) of the dielectric substrate (2).
Inventors:
HIRATSUKA TOSHIRO (JP)
TAGUCHI YOSHINORI (JP)
TAGUCHI YOSHINORI (JP)
Application Number:
PCT/JP2019/035692
Publication Date:
April 02, 2020
Filing Date:
September 11, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01P1/203; H01P1/213; H01P7/08
Foreign References:
| JPH08237003A | 1996-09-13 | |||
| JPS59121904U | 1984-08-16 | |||
| JP2006311100A | 2006-11-09 |
Other References:
OHIRA, MASATAKA ET AL.: "A Novel Microstrip Filter Structure Consisting of Transversal Resonator Array and Its Fully Canonical Bandpass Filter Design", 2015 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, 2015, XP033181326
KATO, TOSHIKI ET AL.: "A Microstrip Bandpass Filter with Transmission Zeros Provided by Transversal Resonator Array", PROCEEDINGS OF THE 2015 IEICE GENERAL CONFERENCE (ELECTRONICS 1, vol. 1, 2015, pages 74
KATO, TOSHIKI ET AL.: "A Microstrip Bandpass Filter with Transmission Zeros Provided by Transversal Resonator Array", PROCEEDINGS OF THE 2015 IEICE GENERAL CONFERENCE (ELECTRONICS 1, vol. 1, 2015, pages 74
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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