US 12,074,375 B2
Millimeter-wave dual circularly polarized lens antenna and electronic equipment
Zhihao Jiang, Jiangsu (CN); and Wei Hong, Jiangsu (CN)
Assigned to SOUTHEAST UNIVERSITY, Jiangsu (CN); and PURPLE MOUNTAIN LABORATORIES, Jiangsu (CN)
Appl. No. 17/775,896
Filed by SOUTHEAST UNIVERSITY, Jiangsu (CN); and PURPLE MOUNTAIN LABORATORIES, Jiangsu (CN)
PCT Filed Feb. 8, 2021, PCT No. PCT/CN2021/076024
§ 371(c)(1), (2) Date May 11, 2022,
PCT Pub. No. WO2022/027950, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 202110115595.5 (CN), filed on Jan. 28, 2021.
Prior Publication US 2022/0399653 A1, Dec. 15, 2022
Int. Cl. H01Q 21/24 (2006.01); H01Q 9/04 (2006.01); H01Q 19/06 (2006.01)
CPC H01Q 21/24 (2013.01) [H01Q 9/0414 (2013.01); H01Q 19/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A millimeter-wave dual circularly polarized lens antenna, comprising a broadband circularly polarized planar feed source array and a dual circularly polarized planar lens arranged in parallel, wherein the broadband circularly polarized planar feed source array outputs or receives a signal through the dual circularly polarized planar lens, wherein
the dual circularly polarized planar lens comprises a plurality of dual circularly polarized transmissive phase shift units arranged periodically, wherein each dual circularly polarized transmissive phase shift unit comprises a stacked metal patch with a grooved upper layer, a second metal floor provided with two circular slots, a stacked metal patch with a grooved lower layer, and two upper-layer microstrip lines and two lower-layer microstrip lines;
the stacked metal patch with the grooved upper layer faces the broadband circularly polarized planar feed source array, both the stacked metal patch with the grooved upper layer and the stacked metal patch with the grooved lower layer are of a double-layer metal patch stacked structure, and a lower layer of the stacked metal patch with the grooved upper layer and the two upper-layer microstrip lines are in a same metal layer and are physically connected; an upper layer of the stacked metal patch with the grooved lower layer and two lower-layer microstrip lines are in the same metal layer and are physically connected;
outer ends of each of the upper-layer microstrip line and the lower-layer microstrip line are provided with metal through-holes which are connected to each other and pass through the circular slot; the stacked metal patch with the grooved upper layer and the stacked metal patch with the grooved lower layer are connected by the two upper-layer microstrip lines, the two lower-layer microstrip lines, and the two metal through-holes.