US 12,249,762 B2
Gap waveguide antenna structure and electronic device
Zhidong Zhao, Shenzhen (CN); Qiang Li, Beijing (CN); Dapeng Lao, Beijing (CN); and Yong Yang, Beijing (CN)
Assigned to Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 26, 2023, as Appl. No. 18/160,181.
Application 18/160,181 is a continuation of application No. PCT/CN2020/105549, filed on Jul. 29, 2020.
Prior Publication US 2023/0170622 A1, Jun. 1, 2023
Int. Cl. H01Q 13/20 (2006.01); H01Q 9/04 (2006.01)
CPC H01Q 13/206 (2013.01) [H01Q 9/0407 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A gap waveguide antenna structure, comprising:
a top layer;
a gap waveguide structure;
a microstrip structure; and
a bottom layer;
wherein:
the top layer is parallel to the bottom layer;
the top layer comprises a first metal layer, a dielectric layer, and a second metal layer, wherein the first metal layer is laid on a first side of the dielectric layer, and the second metal layer is laid on a second side of the dielectric layer;
the gap waveguide structure comprises a periodic pin structure and a ridge structure, wherein the periodic pin structure and the ridge structure are disposed on a side of the bottom layer close to the top layer, a slot is formed between the periodic pin structure and the second metal layer, and a slot is formed between the ridge structure and the second metal layer;
the periodic pin structure comprises a plurality of pins, and the plurality of pins are periodically arranged on two sides of the ridge structure;
the microstrip structure is disposed in the second metal layer, and the microstrip structure is parallel to the ridge structure;
a frame of the microstrip structure is separated from metal of the second metal layer by leaving a space; and
the ridge structure comprises a boundary ridge structure and a main ridge structure, the boundary ridge structure is located at one end of the ridge structure, the boundary ridge structure is disposed on a side below the microstrip structure toward the bottom layer, and a slot is formed between a surface of the boundary ridge structure toward the top layer and the microstrip structure.