Title:
FILTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/230598
Kind Code:
A1
Abstract:
The purpose of the present invention is to make it easy to design a filter device having a desired characteristic. This filter device is provided with a post wall waveguide that functions as a resonator group including combined five resonators (R1-R5). Inside the respective resonators (R1, R2), control posts (CP1, CP2) are provided, and the shortest distance (di) from a control post (CPi) to a narrow wall of a resonator (Ri) satisfies d1>d2. Inside the respective resonators (R4, R5), control posts (CP4, CP5) are provided, and the shortest distance (dj) from a control post (CPj) to a narrow wall of a resonator (Rj) satisfies d4
Inventors:
UEMICHI YUSUKE (JP)
Application Number:
PCT/JP2020/017877
Publication Date:
November 19, 2020
Filing Date:
April 27, 2020
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
H01P1/208; H01P3/12
Foreign References:
| JP2018191267A | 2018-11-29 | |||
| JP2018182493A | 2018-11-15 | |||
| JPH11284409A | 1999-10-15 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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