公开(公告)号：US20230187803A1

公开(公告)日：2023-06-15

申请号：US18055993

申请日：2022-11-16

Applicant: ANRITSU CORPORATION

Inventor： Yusa TAKEMOTO ,  Shigenori MATTORI

IPC: H01P3/12 ,  H01P1/10 ,  H01P11/00

CPC classification number: H01P3/121 ,  H01P1/10 ,  H01P11/002

Abstract: Provided is a waveguide connection structure 1 in which two waveguides 10 and 20 respectively formed with waveguide paths 11 and 21 face each other, in which a choke groove 25 having a depth corresponding to a leakage prevention target frequency is provided, at the end face 20a of the waveguide 20, in a band-shaped region whose center is a center of the waveguide path 21, and which is bounded by an inner ellipse and an outer ellipse, the minor radius of the outer ellipse is longer than the minor radius of the inner ellipse by a length corresponding, and the choke groove 25 includes two groove portions 25a and 25b that are in contact with the inner ellipse and the outer ellipse and are located on the longer side of the rectangle, in the band-shaped region.