Title:
BANDPASS FILTER
Document Type and Number:
WIPO Patent Application WO/2023/127330
Kind Code:
A1
Abstract:
The bandpass filter (10, 10A or 10B) has a first post-wall waveguide, a second post-wall waveguide, a connected waveguide, and a first, second and third via conductor (51, 52 and 50). The first and the second post-wall waveguide are arranged in order in the first direction and transmit high frequency signals in opposite directions to each other. The connected waveguide is placed on the second direction side, which is the transmission direction of the first post-wall waveguide, and connects to the one end of the first and the second post-wall waveguide. The first and second via conductor (51, 52) are located within the respective post-wall waveguide at a distance (L1) from the one end of the respective post-wall waveguide. The third via conductor (50) is located within the connected waveguide at a distance (L2) from the one end of the first and the second post-wall waveguide.
More Like This:
| JP2009111633 | POLARIZED BAND-PASS FILTER |
| JP2005341350 | FILTER |
| WO/1998/010481 | INTEGRATED EVANESCENT MODE FILTER WITH ADJUSTABLE ATTENUATOR |
Inventors:
YAMAMOTO ATSUHIRO (JP)
KISHIDA TAKEHIRO (JP)
KISHIDA TAKEHIRO (JP)
Application Number:
PCT/JP2022/042256
Publication Date:
July 06, 2023
Filing Date:
November 14, 2022
Export Citation:
Assignee:
FURUNO ELECTRIC CO (JP)
International Classes:
H01P1/207
Foreign References:
| US20210091442A1 | 2021-03-25 | |||
| US20200028232A1 | 2020-01-23 |
Download PDF: