公开(公告)号：US20230361444A1

公开(公告)日：2023-11-09

申请号：US18353884

申请日：2023-07-18

Applicant: LANSUS TECHNOLOGIES INC.

Inventor： SHULUN LI ,  JIASHUAI GUO

IPC: H01P3/00 ,  H01P5/10 ,  H01P3/10

CPC classification number: H01P3/006 ,  H01P5/1015 ,  H01P3/10

Abstract: A coplanar waveguide transmission line and a design method thereof are provided. The coplanar waveguide transmission line includes a first dielectric substrate, a center conductor strip, and two ground conductor strips. The first dielectric substrate has a first surface and a second surface opposite to each other. The center conductor strip and the ground conductor strips are stacked and fixed to the first surface. The center conductor strip includes a first segment and a second segment. A width of the first segment is greater than a width of the second segment, so that the first segment and the second segment form a step structure. A rectangular groove recessed toward the second surface is defined in the first surface, and a part of the center conductor strip is stacked and fixed to a side, distal from the second surface, of the rectangular groove to form a defected ground structure.