Radiating element and associated antenna and manufacturing method

Patent metadata

Field	Value
Publication number	US-12021320-B2
Application number	US-202017777274-A
Country	US
Kind code	B2
Filing date	Nov 26, 2020
Priority date	Nov 29, 2019
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

A radiating element of an antenna includes at least one wire-like nanostructure, each wire-like nanostructure extending in the same direction, called common direction, between a first end and a second end, and an inductor connected to each first end of a nanostructure, the inductor being formed from a first conductive material, the inductor extending in a plane normal to the common direction, the first conductive material having an electrical conductivity that varies under the effect of a variation of an electric field applied within the first conductive material.

First claim

The invention claimed is:

1. A radiating element for an antenna including:
an assembly comprising at least one wire-like nanostructure, each wire-like nanostructure of the assembly having a first end and a second end, each wire-like nanostructure of the assembly extending in a same common direction, between the first end and the second end, and
an inductor connected to the first end of each wire-like nanostructure of the assembly, the inductor being formed from a first conductive material, and the inductor extending in a plane normal to the common direction,
the first conductive material having an electrical conductivity varying under the effect of a variation of an electric field applied within the first conductive material.

2. The radiating element as claimed in claim 1 , wherein the inductor is configured to have an inductance value being able to be matched with a capacitance value of the assembly of at least one wire-like nanostructure.

3. The radiating element as claimed in claim 1 , wherein the first conductive material includes a semi-metal.

4. The radiating element as claimed in claim 1 , wherein the first conductive material comprises a graphene.

5. The radiating element as claimed in claim 1 , wherein the first conductive material is a transition metal dichalcogenide.

6. The radiating element as claimed in claim 1 , wherein said at least one wire-like nanostructure is a carbon nanotube.

7. The radiating element as claimed in claim 1 , wherein the inductor has a spiral shape.

8. The radiating element as claimed in claim 1 , wherein the assembly of at least one wire-like nanostructure includes several wire-like nanostructures.

9. The radiating element as claimed in claim 8 , wherein the inductor is configured so as to have an inductance value that may be matched with a capacitance of the assembly of wire-like nanostructures.

10. An elementary antenna including:
the radiating element as claimed in claim 1 , and
a transmission line including a region made of a second conductive material and two ground planes, the transmission line extending in the same plane as the inductor and the region being connected to the inductor, each ground plane being made of a third conductive material, the region being arranged between the two ground planes and,
a variable direct current (DC) voltage generator allowing a DC voltage being applied between two terminals of the inductor so as to apply an electric field within the first conductive material.

11. The elementary antenna as claimed in claim 10 , including an electrode in physical contact with the inductance, and the variable DC voltage generator applying the electric field within the first conductive material by means of the electrode.

12. An antenna array including an array of several radiating elements having a plurality of elementary antennas as claimed in claim 10 .

13. The antenna array as claimed in claim 12 , the plurality of elementary antennas including a first elementary antenna and a second elementary antenna having radiating elements having assemblies of at least one wire-like nanostructure with different capacitances.

Assignees

• Thales Sa
• Centre Nat Rech Scient
• Ecole Superieure Physique & Chimie Ind Ville De Paris
• Univ Sorbonne

Inventors

• Chazelas Jean
• Tripon-Canseliet Charlotte
• Ziaei Afshin
• Xavier Stéphane

Classifications

• H01Q21/0006

  Particular feeding systems · CPC title

• H01Q1/368 Primary

  using carbon or carbon composite · CPC title

• H01F21/02

  continuously variable, e.g. variometers · CPC title

• H01Q9/32 Primary

  Vertical arrangement of element (H01Q9/40 takes precedence) · CPC title

• H01F5/003

  Printed circuit coils · CPC title