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.