公开(公告)号：US10193233B1

公开(公告)日：2019-01-29

申请号：US14856541

申请日：2015-09-16

Applicant: HRL LABORATORIES, LLC

Inventor： Daniel Gregoire ,  Carson White ,  Joseph Colburn

IPC: H01Q15/00 ,  H01Q15/14

Abstract: An active artificial magnetic conductor comprising an array of unit cells, each unit cell comprising an electrically conductive patch that is connected with an electrically conductive patch of neighboring unit cell in a column of unit cells using a non-Foster negative inductor and having RF isolating plates or walls between rows of unit cells. These isolating plates or walls eliminate undesirable cross coupling between the non-Foster negative inductors. The electrically conductive patches may be formed by metallic patches preferably arranged in the 2D array of such patches. Each patch preferably has a rectilinear shape.

公开(公告)号：US20190334234A1

公开(公告)日：2019-10-31

申请号：US15965583

申请日：2018-04-27

Applicant: HRL Laboratories, LLC

Inventor： Ryan G. Quarfoth ,  Keerti S. Kona ,  Daniel Gregoire

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

Abstract: A holographic antenna has plurality of conductive elements arranged in a series of the conductive elements, the series of conductive elements being grouped a number of different groups of said conductive elements, each of conductive elements in each different group of conductive elements being connected via one or more tuning elements to a neighboring conductive element in each the different group of conductive elements, each different group of conductive elements comprising a holographic antenna element of said holographic antenna. A plurality of amplifiers wherein each one of the plurality of amplifiers is connected at one end of each one of the different groups of conductive elements; and a feed system coupling each of said amplifiers to a RF connection of the holographic antenna.

公开(公告)号：US10811782B2

公开(公告)日：2020-10-20

申请号：US15965583

申请日：2018-04-27

Applicant: HRL Laboratories, LLC

Inventor： Ryan G. Quarfoth ,  Keerti S. Kona ,  Daniel Gregoire

IPC: H01Q1/52 ,  H01Q15/00 ,  H01Q21/00 ,  H01Q3/44 ,  H01Q13/20 ,  H01Q21/06 ,  H01Q3/28 ,  H01Q3/30

Abstract: A holographic antenna has plurality of conductive elements arranged in a series of the conductive elements, the series of conductive elements being grouped a number of different groups of said conductive elements, each of conductive elements in each different group of conductive elements being connected via one or more tuning elements to a neighboring conductive element in each the different group of conductive elements, each different group of conductive elements comprising a holographic antenna element of said holographic antenna. A plurality of amplifiers wherein each one of the plurality of amplifiers is connected at one end of each one of the different groups of conductive elements; and a feed system coupling each of said amplifiers to a RF connection of the holographic antenna.