Nonplanar metamaterial polarizer and antenna system

Patent metadata

Field	Value
Publication number	US-10903583-B2
Application number	US-201816011227-A
Country	US
Kind code	B2
Filing date	Jun 18, 2018
Priority date	Jun 18, 2018
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A nonplanar metamaterial polarizer includes: a substrate including dielectric material transmissive to electromagnetic radiation and having a nonplanar shape; a first conductive pattern on a first side of the substrate; and a second conductive pattern on a second side of the substrate. The first and second conductive patterns are configured to alter the polarization of the electromagnetic radiation as it transmits through the substrate. In some cases, the first and second conductive patterns include split-ring resonators, and the nonplanar shape is a cylinder. An antenna system includes the nonplanar metamaterial polarizer and an antenna inside or adjacent to the nonplanar metamaterial polarizer and configured to transmit or receive the electromagnetic radiation through the nonplanar metamaterial polarizer while the nonplanar metamaterial polarizer alters the polarization of the transmitted or received electromagnetic radiation. In some cases, the antenna is a monopole antenna, a dipole antenna, a biconical antenna, or a discone antenna.

First claim

What is claimed is:

1. A nonplanar metamaterial polarizer comprising:
a substrate comprising a dielectric material transmissive to electromagnetic radiation and having a nonplanar shape;
a first conductive pattern on a first side of the substrate; and
a second conductive pattern on a second side of the substrate,
wherein the first and second conductive patterns are configured to alter the polarization of the electromagnetic radiation as it transmits through the substrate.

2. The nonplanar metamaterial polarizer of claim 1 , wherein the dielectric material comprises at least one of G10, an FR-4 material, polytetrafluoroethylene (PTFE), a polyimide (PI) material, a polycarbonate material, polyetherimide (PEI), and acrylonitrile butadiene styrene (ABS).

3. The nonplanar metamaterial polarizer of claim 1 , wherein the first and second conductive patterns comprise a plurality of split-ring resonators.

4. The nonplanar metamaterial polarizer of claim 1 , wherein the nonplanar shape comprises at least one of:
a contoured surface; and
planar surfaces, wherein adjacent pairs of the planar surfaces share an edge where the substrate bends.

5. The nonplanar metamaterial polarizer of claim 4 , wherein the nonplanar shape comprises at least one of a cylinder and a polyhedron.

6. An antenna system comprising:
the nonplanar metamaterial polarizer of claim 1 ; and
an antenna inside or adjacent to the nonplanar metamaterial polarizer and configured to transmit or receive the electromagnetic radiation through the nonplanar metamaterial polarizer while the nonplanar metamaterial polarizer alters the polarization of the transmitted or received electromagnetic radiation.

7. The antenna system of claim 6 , wherein the antenna comprises one or more of a monopole antenna, a dipole antenna, a biconical antenna, and a discone antenna.

Assignees

• Bae Sys Inf & Elect Sys Integ

Inventors

• Mahoney David A

Classifications

• H01Q15/244 Primary

  converting a linear polarised wave into a circular polarised wave (guided wave H01P1/17) · CPC title

• H01Q13/0258

  Orthomode horns (orthomode transducers H01P1/161) · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01P1/173

  using a conductive element · CPC title

• H01Q21/0056 Primary

  Conically or cylindrically arrayed · CPC title