公开(公告)号：US20230378652A1

公开(公告)日：2023-11-23

申请号：US18177610

申请日：2023-03-02

Applicant: Southeast University

Inventor： Zhihao JIANG ,  Xuanfeng TONG ,  Wei HONG

IPC: H01Q9/04 ,  H01Q13/20 ,  H01Q21/06

CPC classification number: H01Q9/0428 ,  H01Q13/206 ,  H01Q21/065

Abstract: A dual-frequency and dual-circularly-polarized transmit-array antenna with independently controllable beams includes a planar broadband circularly polarized feed array and a planar transmit-array, the planar broadband circularly polarized feed array being placed near a focal plane of the planar transmit-array. The planar broadband circularly polarized feed array includes K-band left/right-handed circularly polarized feeds and Ka-band left/right-handed circularly polarized feeds that are integrated in the same plane. The planar transmit-array includes K-band and Ka-band dual-circularly-polarized phase shifting cells that are periodically staggered in a shared-aperture manner and based on an architecture of receiving antenna-phase shifting stripline-transmitting antenna. The antenna realize independent adjustment of right-handed and left-handed circularly polarized transmit phases in the K-band and the Ka-band, and it possesses the advantages such as miniaturization, low profile, and easy integration, and so on, thus having significant application prospects in fields such as satellite communications.

公开(公告)号：US20220399653A1

公开(公告)日：2022-12-15

申请号：US17775896

申请日：2021-02-08

Applicant: SOUTHEAST UNIVERSITY ,  PURPLE MOUNTAIN LABORATORIES

Inventor： Zhihao JIANG ,  Wei HONG

IPC: H01Q21/24 ,  H01Q9/04 ,  H01Q19/06

Abstract: The present invention discloses a millimeter-wave dual circularly polarized lens antenna and electronic equipment. The antenna includes a broadband circularly polarized planar feed source array and a dual circularly polarized planar lens. In the planar feed source array, a double-layer stacked patch is used at the same time to achieve broadband circular polarization, and a sequentially rotating feed structure is used to further expand the bandwidth. In the planar lens, a miniaturized stacked patch and a microstrip true-time-delayed phase-shifting structure are used to obtain the independent regulation and control of the left-handed and right-handed circularly polarized wave transmissive phases in a relatively wide frequency band. The lens antenna of the present invention achieves dual circularly polarized highly directional beam, and independently control the beam pointing of the left-handed circularly polarized wave and right-handed circularly polarized wave, and achieve the transmissive dual circularly polarized beam shaping.

公开(公告)号：US20220278466A1

公开(公告)日：2022-09-01

申请号：US17605005

申请日：2021-01-12

Applicant: SOUTHEAST UNIVERSITY ,  PURPLE MOUNTAIN LABORATORIES

Inventor： Zhihao JIANG ,  Ke ZHANG ,  Wei HONG

IPC: H01Q21/24 ,  H01Q9/04 ,  H01Q19/00 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q21/30 ,  H01Q1/36

Abstract: A compact dual-band triple-polarized antenna based on shielded mushroom structures includes a vertically-polarized radiator and a horizontally-polarized radiator. Two parts are fixedly connected in a disc-shaped structure. The vertically-polarized radiator and the horizontally-polarized radiator are both multilayer structures. Each multilayer structure includes a plurality of concentric circles, and the plurality of concentric circles include a plurality of dielectric substrates. The vertically-polarized radiator and horizontally-polarized radiator each include a plurality of shielded mushroom cell structures. Each shielded mushroom cell structure includes at least three metal layers and a metallic shorting pin, and the metallic shorting pin connects at least two of the at least three metal layers. By controlling dispersion properties of the each shielded mushroom cell structure, a multi-frequency pattern diversity device possessing both vertical polarization and dual horizontal polarization radiation characteristics in two pre-defined frequencies is designed.