The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Jun. 20, 2023
Anhui University, Hefei, CN;
Zhixiang Huang, Hefei, CN;
Chao Wang, Hefei, CN;
Minquan Li, Hefei, CN;
Guanghui Xu, Hefei, CN;
Guoda Xie, Hefei, CN;
Kaikun Niu, Hefei, CN;
Xingang Ren, Hefei, CN;
ANHUI UNIVERSITY, Anhui, CN;
Abstract
Disclosed are a broadband millimeter-wave circularly polarized antenna element, a single-mode array, and a dual-mode array, relating to the technical field of circularly polarized antennas. A microstrip feeder is arranged on a lower surface of a second dielectric substrate of the antenna element. A coupling slot is etched on a metal ground layer, two metallized vias are formed on a first dielectric substrate, and a metal strip is tiled on an upper surface of the first dielectric substrate. Two L-shaped parasitic patches are also tiled on the first dielectric substrate. The two L-shaped parasitic patches are located on both sides of the metal strip, and the two L-shaped parasitic patches are rotationally symmetric about a center point of the upper surface of the first dielectric substrate. According to the present disclosure, a 3-dB axial ratio bandwidth of the antenna element is improved by using L-shaped parasitic patches.