公开(公告)号：US20210313676A1

公开(公告)日：2021-10-07

申请号：US17262759

申请日：2020-03-11

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Xiuyin ZHANG ,  Wanli ZHAN ,  Jinxu XU ,  Yunfei CAO

IPC: H01Q1/48 ,  H01Q1/50 ,  H01Q1/52 ,  H01Q21/00

Abstract: The invention discloses a feed network for an antenna array with integrated filtering, power splitting and phase shifting, comprising upper and lower metal floors, metal connecting posts, coaxial feed terminals, a suspended dielectric substrate, suspended strip lines and two phase-adjusting dielectric substrates; the upper and lower metal floors share a common ground through the metal connecting posts, the suspended strip lines are provided on the suspended dielectric substrate, the suspended dielectric substrate is positioned horizontally between the two phase-adjusting dielectric substrates, the two phase-adjusting dielectric substrates are positioned horizontally between the upper and lower metal floors; the suspended strip lines comprise a one-to-three filtering power splitting unit, two one-to-two unequal filtering power splitting units, two first phase-shifting lines and two second phase-shifting lines, the two phase-adjusting dielectric substrates cover the one-to-three filtering power splitting unit, part of the two first phase-shifting lines and the two second phase-shifting lines. The invention provides integrated design of the three functional circuits with filtering, power splitting and phase shifting to avoid cascading mismatch between different functional circuits in conventional designs.