Anhui University

Anhui Coreach Technology Co.,ltd.

Guoda Xie

Zhixiang Huang

Xingang Ren

Kaikun Niu

Guanghui Xu

Minquan Li

Chao Wang

Lixia Yang

Xianliang Wu

Feng Xiao

Jirui Zhang

Jianxin Chen

You Peng

Ping Li

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.

Broadband millimeter wave circularly polarized antenna element, single-mode array and dual-mode array

The present disclosure relates to a domain decomposition method and system for electromagnetic simulation. The method includes: dividing an antenna structure model into multiple subdomains, where each of the subdomains corresponds to a structure in one to-be-simulated array antenna; subdividing each of the subdomains by a tetrahedral network to obtain multiple tetrahedrons; obtaining a vector basis function of each edge of each of the tetrahedrons according to vertex positions and lengths of the edges of the tetrahedron; and calculating an electric field value and a magnetic field value of any point in a tetrahedron to which each of the edges belongs using a vector basis function corresponding to the edge and a double curl electric field wave equation of a subdomain to which the edge belongs.

Domain decomposition method and system for electromagnetic simulation

Bidirectional circularly polarized antenna element and bidirectional circularly polarized array antenna are provided, and comprising a dielectric substrate, a feeder, a radiation patch, a first plane, a second plane, a first coupling assembly and a second coupling assembly which are embedded in the surface of the dielectric substrate. The first plane and the second plane of the antenna element are kept at different heights, and compared with the solution that two planes at the same height can only generate linear polarization radiation in the prior art, the circular polarization radiation can be generated, which solves the problem of linear polarization mismatch. Furthermore, two coupling assemblies are introduced into two sides of the radiation patch to enable the coupling effect with the radiation patch, such that the frequency bandwidth of the circularly polarized antenna can be greatly improved without increasing the size of the antenna.

Bidirectional circularly polarized antenna element and bidirectional circularly polarized array antenna

Growing community of inventors

Hefei, China

Guoda Xie