公开(公告)号：US11600930B2

公开(公告)日：2023-03-07

申请号：US17321524

申请日：2021-05-17

Applicant: Ningbo University

Inventor： Yang You ,  Jifu Huang ,  Ling Zhang ,  Qingchun You ,  Yunlong Lu

IPC: H01Q21/00 ,  H01Q21/06 ,  H01Q1/42 ,  H01Q9/04 ,  H01Q13/26

Abstract: A broadband panel array antenna includes a polarization layer, a radiating layer and a feed layer which are sequentially stacked from top to bottom. The feed layer is used for converting a single path of TE10 mode signals into a plurality of paths of same-power in-phase TE10 mode signals and transmitting the plurality of paths of TE10 mode signals to the radiating layer. The radiating layer is used for radiating the plurality of paths of TE10 mode signals from the feed layer to a free space. The polarization layer is used for rotating the polarization direction of an electric field generated by the radiating layer to reduce the side lobe in an E-plane direction diagram and an H-plane direction diagram. The broadband panel array antenna has the advantages of being low in side lobe, high in gain and efficiency, and low in machining cost.

公开(公告)号：US11381000B2

公开(公告)日：2022-07-05

申请号：US17114402

申请日：2020-12-07

Applicant: Ningbo University

Inventor： Yang You ,  Jifu Huang ,  Ling Zhang ,  Qingchun You ,  Yunlong Lu

IPC: H01Q15/00 ,  H01Q1/38 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q25/02

Abstract: A low-sidelobe plate array antenna includes a radiation layer and a feed layer. The radiation layer is superimposed on the feed layer and includes a first plate and a radiation array disposed on the first plate. The radiation array is formed by n2 radiation units which are distributed in 2(k-1) rows and 2(k-1) columns. Each radiation unit in the radiation layer is constituted by two first radiation assemblies and two second radiation assemblies. Each first radiation assembly comprises a first rectangular bar, a first rectangular cavity, a second rectangular cavity and a third rectangular cavity. The first rectangular cavity, the second rectangular cavity and the third rectangular cavity in the first radiation assembly are stacked in presence of an azimuth deviation to form a three-layer coupled structure, and the first rectangular bar located in the first rectangular cavity can better restrain cross polarization and reduce the sidelobe.

公开(公告)号：US10790592B2

公开(公告)日：2020-09-29

申请号：US16414727

申请日：2019-05-16

Applicant: Ningbo University

Inventor： Qingchun You ,  Jifu Huang ,  Liting Qin ,  Yang You

IPC: H01Q13/18 ,  H01P1/16 ,  H01Q21/00

Abstract: A low-profile CTS flat-plate array antenna includes a radiating layer, a mode switching layer and a feed network layer which are sequentially arrayed from top to bottom. The mode switching layer comprises a first metal plate and a mode switching cavity array arranged on an upper surface of the first metal plate and comprising 22n mode switching cavities arrayed in 2n rows and 2n columns, wherein n is an integer greater than or equal to 1. Each mode switching cavity includes a first rectangular cavity, a second rectangular cavity, a third rectangular cavity, a fourth rectangular cavity and a fifth rectangular cavity which are sequentially connected from left to right. The 2n mode switching cavities located in each row are sequentially connected end to end.

公开(公告)号：US10784579B2

公开(公告)日：2020-09-22

申请号：US16416297

申请日：2019-05-20

Applicant: Ningbo University

Inventor： Qingchun You ,  Jifu Huang ,  Liting Qin ,  Yang You

IPC: H01Q5/25 ,  H01P3/123 ,  H01P5/16 ,  H01Q21/00

Abstract: An ultra-wideband CTS flat-plate array antenna includes a radiating layer, a mode switching layer and a feed network layer sequentially arrayed from top to bottom. The mode switching layer comprises a first metal plate and a mode switching cavity formed in the first metal plate and including two mode switching units which are arranged left and right and each includes eight H-plane Y-type single-ridge waveguide power dividers arrayed in 4 rows and 2 columns. The H-plane Y-type single-ridge waveguide power divider in the mth row and 1st column is bilaterally symmetrical with the H-plane Y-type single-ridge waveguide power divider in the mth row and 2nd column. The two H-plane Y-type single-ridge waveguide power dividers in the each row are connected through an E-plane T-type single-ridge waveguide power divider. A center distance between every two adjacent H-plane Y-type single-ridge waveguide power dividers in each column is not over one wavelength.

公开(公告)号：US10431902B2

公开(公告)日：2019-10-01

申请号：US15964054

申请日：2018-04-26

Applicant: Ningbo University

Inventor： Qingchun You ,  Jifu Huang ,  Liting Qin ,  Yang You

IPC: H01Q21/06 ,  H01Q21/00 ,  H01Q13/18 ,  H01Q13/10 ,  H01Q15/24 ,  H01Q21/24

Abstract: A waveguide slotted array antenna comprises a feed layer and a radiation layer, wherein the feed layer is located below the radiation layer, and the radiation layer comprises a first radiation unit, a second radiation unit, a third radiation unit and a fourth radiation unit which are stacked from bottom to top; the first radiation unit comprises a first flat metal plate and a first radiation array arranged on the first flat metal plate, the second radiation unit comprises a second flat metal plate and a second radiation array arranged on the second flat metal plate, the third radiation unit comprises a third flat metal plate and a third radiation array arranged on the third flat metal plate, and the fourth radiation unit comprises a fourth flat metal plate and a fourth radiation array arranged on the fourth flat metal plate. The waveguide slotted array antenna has the advantages of low sidelobes and low cost while ensuring broad bands and high gains, and can be made small.